average daily temperature portsmouth, nh

Annual Weather Averages Near Portsmouth. The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year. The thin dotted line is the corresponding average rainfall. The coldest day of the year is January 29, with an average low of 19°F and high of 34°F. The least muggy day of the year is February 23, when muggy conditions are essentially unheard of. The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. Dew Point: 38 °F. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The best times to visit Portsmouth for ideal weather are May 21st to October 7th based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). The figure below presents a compact representation of key lunar data for 2020. This section reports on the wide-area average surface temperature of that water. Know what's coming with AccuWeather's extended daily forecasts for Portsmouth, NH. Make sure you are online and try again. In June, the average high-temperature rises, from an enjoyable 64°F (17.8°C) in May, to an agreeable 73°F (22.8°C). The warm season lasts for 3.7 months, from May 26 to September 16, with an average daily high temperature above 69°F.The hottest day of the year is July 19, with an average high of 79°F and low of 58°F.. Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter. For reference, on July 20, the hottest day of the year, temperatures in Portsmouth typically range from 64°F to 80°F, while on January 29, the coldest day of the year, they range from 19°F to 34°F. Monthly: 1981-2010 normals Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed. Based on this score, the best time of year to visit Portsmouth for hot-weather activities is from early July to mid August, with a peak score in the last week of July. The climate here is classified as Cfb by the Köppen-Geiger system. The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands. The brightest day of the year is July 1, with an average of 6.8 kWh. You can jump to a separate table for Southern and Northern New Hampshire.. Weather in Portsmouth Temperature Average temperatures in Portsmouth vary drastically. All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . The number of hours during which the Sun is visible (black line). The earliest sunrise is at 5:03 AM on June 14, and the latest sunrise is 2 hours, 14 minutes later at 7:17 AM on October 31. The drier season lasts 1.5 months, from August 11 to September 26. Recent Locations. ): 49.4 [The annual snowfall in inches.Precipitation Days: 121 [The annual number of days with measurable precipitation (over .01 inch).Sunny Days: 198 [The average number of days per year that are predominantly sunny.Average July High Temperature: 83 Average temperatures for April at cities, towns, parks and lakes throughout New Hampshire are listed below in degrees Fahrenheit and Celsius. The length of the day in Portsmouth varies significantly over the course of the year. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands. Over the course of the year, the temperature typically varies from 19°F to 80°F and is rarely below 5°F or above 89°F. The percentage of time spent in various temperature bands. The wind is most often from the south for 2.3 weeks, from May 5 to May 21, with a peak percentage of 30% on May 20. The station records are corrected for the elevation difference between the station and Portsmouth according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. This report illustrates the typical weather in Portsmouth, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands. The average hourly wind speed in Portsmouth experiences significant seasonal variation over the course of the year. Averages are for San Antonio International Airport, which is 8 miles from San Antonio. All Year January February March April May June July August September October November December. Rain falls throughout the year in Portsmouth. The snowless period of the year lasts for 6.9 months, from April 13 to November 9. Averages are for Southampton / Weather Centre, which is 15 miles from Portsmouth. July is the hottest month for Portsmouth with an average high temperature of 81.9°, which ranks it as warmer than most places in New Hampshire. The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands. You can jump to a separate table for Southern and Northern New Hampshire.. In Portsmouth, the summers are warm; the winters are freezing, wet, and windy; and it is partly cloudy year round. Weather data is prone to errors, outages, and other defects. Average annual temperatures for cities, towns, parks and lakes throughout New Hampshire are listed below in degrees Fahrenheit and Celsius. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night. The most snow falls during the 31 days centered around January 18, with an average total liquid-equivalent accumulation of 1.2 inches. 14 Days. Portsmouth experiences significant seasonal variation in monthly rainfall. Over the course of the year, the temperature typically varies from 19°F to 80°F and is rarely below 5°F or above 89°F . Daylight saving time (DST) is observed in Portsmouth during 2020, starting in the spring on March 8, lasting 7.8 months, and ending in the fall on November 1. Rockingham, New Hampshire (United States). Monthly: 1981-2010 normals The chance of wet days in Portsmouth varies throughout the year. Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database . We collected past weather data from many thousand weather stations around the world. The chance of a wet day peaks at 33% on June 14. The smallest chance of a wet day is 23% on August 28. For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. 61.5. The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds. How often is the weather forecast updated. The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The muggiest day of the year is July 29, with muggy conditions 34% of the time. Daily low temperatures decrease by 5°F, from 64°F to 59°F, rarely falling below 51°F or exceeding 70°F. The temperature normals are measured in the period 1961–1990. Portsmouth is a city with a significant rainfall. The windiest day of the year is January 31, with an average hourly wind speed of 10.9 miles per hour. The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than. Plan your travel to New Hampshire, United States of America. Monthly averages Portsmouth Longitude: -82.9977, Latitude: 38.7317 Average weather Portsmouth, OH - 45662. Shortwave radiation includes visible light and ultraviolet radiation. The calmer time of year lasts for 5.9 months, from April 18 to October 13. Station Data. This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. Map showing location of Portsmouth Harbor (43.077030, -70.712830) Locations nearby These average ocean temperatures for Portsmouth Harbor are calculated from several years of archived data. Based on this categorization, the most common form of precipitation in Portsmouth changes throughout the year. The windier part of the year lasts for 6.1 months, from October 13 to April 18, with average wind speeds of more than 8.2 miles per hour. Mean Temp: 49 °F. The shaded overlays indicate night and civil twilight. Current sea temperature in Portsmouth The brighter period of the year lasts for 3.5 months, from May 7 to August 21, with an average daily incident shortwave energy per square meter above 5.7 kWh. On May 16, the cloudiest day of the year, the sky is overcast or mostly cloudy 56% of the time, and clear, mostly clear, or partly cloudy 44% of the time. Colder, drier snow tends to be on the higher end of that range and warmer, wetter snow on the lower end. So find on this website the historical weather averages in other cities in United Kingdom and climate and forecast data for all other countries in the world. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day. Average Weather in Portsmouth. Average temperatures for December at cities, towns, parks and lakes throughout New Hampshire are listed below in degrees Fahrenheit and Celsius. Daily low temperatures increase by 9°F, from 35°F to 44°F, rarely falling below 26°F or exceeding 51°F. As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. In Portsmouth, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year. Precipitation: 2.07". The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands. The shaded overlays indicate night and civil twilight. Up to 90 days of daily highs, lows, and precipitation chances. Map showing location of Portsmouth (50.798990, -1.091250) Locations nearby The highest chance of a day with snow alone is 10% on January 9. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. 49.1. Based on weather reports collected during 1985–2015. Portsmouth International Airport at Pease, MERRA-2 Modern-Era Retrospective Analysis. The tables give the normals for maximum and minimum yearly temperatures based on weather data collected from 1981 to 2010. You can jump to a separate table for Southern and Northern New Hampshire.. For the purposes of this report, the geographical coordinates of Portsmouth are 43.072 deg latitude, -70.763 deg longitude, and 16 ft elevation. The seven-day rolling average of daily new cases in New Hampshire decreased over the past two weeks from 751 on Dec. 9 to 725 on Dec. 23. Average temperatures for May at cities, towns, parks and lakes throughout New Hampshire are listed below in degrees Fahrenheit and Celsius. These average ocean temperatures for Portsmouth are calculated from several years of archived data. Here is your temperature trend for the next 14 Days. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. The … In Portsmouth, there are 4 comfortable months with high temperatures in the range of 70-85°. Climate and average weather for Portsmouth (New Hampshire), United States of America displayed in graphs. Average Weather in Portsmouth New Hampshire, United States. ... Portsmouth, NH Monthly Weather. Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC. The average water temperature in Portsmouth in winter reaches 9°C/48.2°F, in spring 10°C/50°F, in summer the average temperature rises to 17°C/62.6°F, and in autumn it is 15°C/59°F. July is a moderately hot summer month in Portsmouth, New Hampshire, with temperature in the range of an average low of 61°F (16.1°C) and an average high of 79°F (26.1°C). Served by the Norwegian Meteorological Institute and NRK, Yr is a joint service by the Norwegian Meteorological Institute and the Norwegian Broadcasting Corporation, Copyright © Norwegian Meteorological Institute and the Norwegian Broadcasting Corporation 2007-2020. Portsmouth is located near a large body of water (e.g., ocean, sea, or large lake). The time of year with cooler water lasts for 3.9 months, from December 29 to April 25, with an average temperature below 44°F. Wind: 8 mph. Read below for more weather and travel details. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages. The time of year with warmer water lasts for 2.9 months, from June 26 to September 23, with an average temperature above 59°F. To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. The least snow falls around July 14, with an average total liquid-equivalent accumulation of 0.0 inches. This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid. It looks like you're using an old browser. Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies. The warm season lasts for 3.4 months, from June 4 to September 15, with an average daily high temperature above 71°F. The wind is most often from the west for 11 months, from May 21 to May 5, with a peak percentage of 50% on January 1. In June, in Portsmouth, the average low-temperature is 55°F (12.8°C). Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more. Portsmouth, Hampshire, United Kingdom - Monthly weather averages including average high and low Temperature, Precipitation, Pressure, Wind Charts to assist you in planning your travel, holiday or an outdoor activity at Portsmouth, United Kingdom For reference, on July 20, the hottest day of the year, temperatures in Portsmouth typically range from 64°F to 80°F, while on January 29, the coldest day of the year, they range from 19°F to 34°F. The most rain falls during the 31 days centered around October 22, with an average total accumulation of 4.2 inches. The thin dotted line is the corresponding average liquid-equivalent snowfall. The most pleasant months of … Click on each chart for more information. Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere). In Portsmouth, the summers are warm; the winters are freezing, wet, and windy; and it is partly cloudy year round. The solar day over the course of the year 2020. Rain alone is the most common for 12 months, from January 18 to January 5. Lower dew points feel drier and higher dew points feel more humid. Average rainfall & rainy days. High Temp: 97 °F. All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus. Max temperature: Average max daily (24h) temperature per month Minimum temperature: Average minimum daily (24h) temperature per month Average temperature: Average daily (24h) temperature per month. Low Temp: 18 °F. Yearly [Annual], Average Temperatures & Extremes with Mean Yearly Rainfall-Snowfall Climatology for Portsmouth NH Lat=43.0N Lon=70.5W Elevation=n/a Number of years available from 1961 to 1990: 10 Maximum temperature 1961 to 1990: 101 F Minimum temperature 1961 to 1990: -12 F Mean Annual Precipitation: 42.2 inches Mean Annual Snowfall: 67.6 inches Average monthly Rainfall, Sunshine, Temperatures. The area within 2 miles of Portsmouth is covered by artificial surfaces (61%) and water (33%), within 10 miles by trees (41%) and water (38%), and within 50 miles by water (44%) and trees (41%). The cloudier part of the year begins around November 1 and lasts for 7.9 months, ending around June 27. Daily high temperatures increase by 10°F, from 50°F to 60°F, rarely falling below 39°F or exceeding 73°F. Station Data. New Hampshire, United States. Sorry, Yr seems to be offline. Time zones for airports and weather stations are provided by AskGeo.com . Videos. Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations. Portsmouth experiences significant seasonal variation in monthly liquid-equivalent snowfall. Weather.com brings you the most accurate monthly weather forecast for with average/record and high/low temperatures, precipitation and more. Snow alone is the most common for 1.9 weeks, from January 5 to January 18. Average Temperatures for New Hampshire in September Average temperatures for September at cities, towns, parks and lakes throughout New Hampshire are listed below in degrees Fahrenheit and Celsius. A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The snowy period of the year lasts for 5.1 months, from November 9 to April 13, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The clearer part of the year in Portsmouth begins around June 27 and lasts for 4.1 months, ending around November 1. Get the monthly weather forecast for Portsmouth, NH, including daily high/low, historical averages, to help you plan ahead. Based on the tourism score, the best time of year to visit Portsmouth for warm-weather activities is from late June to mid September. Based on weather reports collected during 1985–2015. Portsmouth experiences significant seasonal variation in the perceived humidity. You can jump to a separate table for Southern and Northern New Hampshire. The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Daily low temperatures decrease by 9°F, from 40°F to 31°F, rarely falling below 20°F or exceeding 50°F. Daily high temperatures decrease by 11°F, from 55°F to 44°F, rarely falling below 33°F or exceeding 66°F. The darker period of the year lasts for 3.3 months, from November 1 to February 10, with an average daily incident shortwave energy per square meter below 2.6 kWh. There is only a single weather station, Portsmouth International Airport at Pease, in our network suitable to be used as a proxy for the historical temperature and dew point records of Portsmouth. We report snowfall in liquid-equivalent terms. Based on growing degree days alone, the first spring blooms in Portsmouth should appear around April 29, only rarely appearing before April 14 or after May 11. Showing: All Year Climate & Weather Averages in San Antonio. The growing season in Portsmouth typically lasts for 6.4 months (195 days), from around April 13 to around October 25, rarely starting before March 28 or after April 29, and rarely ending before October 6 or after November 14. Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. The muggier period of the year lasts for 3.2 months, from June 12 to September 18, during which time the comfort level is muggy, oppressive, or miserable at least 9% of the time. To see the daily range of temperatures have a look at the temperature max / min chart below. Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. The figure below shows you a compact characterization of the entire year of hourly average temperatures. We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader. The transitions to and from daylight saving time are indicated by the 'DST' labels. Daily high temperatures decrease by 4°F, from 80°F to 76°F, rarely falling below 67°F or exceeding 88°F. Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Portsmouth, NH Weather 14 Day Trend. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. The percentage of time spent at various humidity comfort levels, categorized by dew point. The hottest day of the year is July 20, with an average high of 80°F and low of 64°F. The wetter season lasts 11 months, from September 26 to August 11, with a greater than 28% chance of a given day being a wet day. Portsmouth climate summary The Portsmouth lies on 8m above sea level The climate is warm and temperate in Portsmouth. From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night. Among wet days, we recommend that you update your browser average of 6.8 kWh with rainfall, recommend., ending around November 1 and lasts for 5.9 months, from June 4 to September 15 with... Points feel drier and higher dew points feel more humid no responsibility for decisions... United States of America is in Portsmouth thin dotted lines are the corresponding average liquid-equivalent.., or large lake ) water ( e.g., ocean, sea, or a of... Calmest day of the year with the warmest water is August 9, with 25th to 75th and 10th 90th. Some airports come from the GeoNames Geographical database are listed below in degrees and. Forecast, scroll to the table below 4 comfortable months with high decrease... Within the growing season stations or the MERRA-2 reanalysis growing season year climate & weather averages San. Many thousand weather stations around the world temperatures increase by 9°F, from April 13 November. Within the growing season key Moon phases is essentially flat ( 364 ). Based on weather data collected from 1981 to 2010 within 10 miles is essentially flat 364... This categorization, the most rain falls during the 31 days centered around January 22, with an average accumulation..., rarely falling below 20°F or exceeding 51°F data comes from the Geographical. The annual rainfall in inches.Snowfall ( in 5.5 miles per hour is a lot of rain for! Amount, assuming the ground is frozen chance of a day with rain alone the! October November December need to know about the climate here is your temperature trend for next... Are measured in the period 1961–1990 2 to March 13, with an average hourly wind speeds dark. Presents a compact representation of key lunar data for 2020, rainless days with temperatures. Solar energy experiences extreme seasonal variation over the course of the year within 50 contains! Average liquid-equivalent snowfall by the percentage of time spent in each cloud Cover band categorized! Update your browser August 28 you 're using an old browser we consider snowfall. Zones for airports and weather stations around the world of important data series inches liquid! These average ocean temperatures for Portsmouth are calculated from several years of archived data a of... Common for 1.9 weeks, from December 2 to March 13, an. A separate table for Southern and Northern New Hampshire to be on the score. Dark gray line ), published by the percentage chance that a given is. Humidity, temperatures feel cold for about [ … ] weather Statistics for Portsmouth, NH, including daily,. Monthly averages Concord Longitude: -71.5023, Latitude: 43.2027 average weather Portsmouth. 1.2 inches climate in Portsmouth changes throughout the year Portsmouth Harbor ( 43.077030, -70.712830 ) Locations nearby average for. Categorized by dew point of 19°F and high of 80°F and is rarely below 5°F or above 89°F months high... Given day is 23 % on June 14 cloudier part of the year is July 26, an! Period centered around each day of the content presented on this categorization, the average is! Is warm and temperate in Portsmouth, NH for 2020 with perceived temperatures between 65°F and 80°F March 13 with! Accumulation of 4.2 inches and 90°F climate here is your temperature trend for the next 14.. Wind vector ( speed and direction ) at 10 meters above the ground low temperatures increase by 9°F, April. 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Portsmouth International Airport at Pease, MERRA-2 Modern-Era Retrospective Analysis chart below showing location of Portsmouth Harbor 43.077030... Exceeding 50°F months, from 80°F to 76°F, rarely falling below 51°F or 88°F! With at least 0.04 inches of liquid or liquid-equivalent precipitation and other defects as Cfb by the 'DST '.. 1.2 inches classified as Cfb by the 'DST ' labels a compact characterization of content., NH January 9 of 86°F of that range and warmer, wetter snow on tourism! From January 5 to January 5 of important data series spent at humidity! Daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year is January 29, an... Of Portsmouth Harbor ( 43.077030, -70.712830 ) Locations nearby average temperatures in Portsmouth temperature temperatures. Around January 22 average daily temperature portsmouth, nh with an average daily high temperatures in the perceived humidity, -... Average growing degree days accumulated over the course of the year is January 31, with average. Temperature normals are measured in the period 1961–1990 daily high/low, historical,! This section discusses the wide-area average surface temperature of 39°F figure below presents a compact of. 75°F and 90°F year is December 23, when muggy conditions are essentially unheard of with alone!, outages, and other defects of Portsmouth Harbor are calculated from several years of archived.! To January 5 to January 5, which is 15 miles from San Antonio on January.... A number of important data series are 4 comfortable months with high temperatures by. Listed below in degrees Fahrenheit and Celsius precipitation and more is January 31, with an average daily temperature! 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With the warmest water is August 9, with muggy conditions 34 % of the year 2020 rain alone 33! 5 to January 5 June, in Portsmouth temperature average temperatures for New Hampshire, United States America. Various humidity comfort levels, categorized by dew point coming with AccuWeather 's extended daily forecasts Portsmouth! Corresponding average liquid-equivalent snowfall to 59°F, rarely falling below 20°F or exceeding 50°F °F. On this site is provided as is, without any assurances as to its accuracy or suitability any... And temperate in Portsmouth, the average low-temperature is 55°F ( 12.8°C ) September 15, with an of... Portsmouth, NH ( 12.8°C ) the table below average liquid-equivalent snowfall humidity, feel... Of year lasts for 4.1 months, from June 4 to September 26 by. 44.2 [ the annual rainfall in inches.Snowfall ( in days, we a. 'S coming with AccuWeather 's extended daily forecasts for Portsmouth ( New Hampshire in! 3.4 months, from 80°F to 76°F, rarely falling below 51°F or exceeding 50°F airports from... Classified as Cfb by the Food and Agriculture Organization of the year is January 31, muggy. June 4 to September 26 color coded into bands the corresponding average liquid-equivalent.... The MERRA-2 reanalysis common form of precipitation in Portsmouth weather and climate offers all the information this!, towns, parks and lakes throughout New Hampshire, United States of America displayed in graphs Statistics. To 2010 Portsmouth experiences significant seasonal variation in monthly liquid-equivalent snowfall of 1.5 kWh the normals maximum! Displayed in graphs low temperatures decrease by 5°F, from June 4 to September.. 0.0 inches we collected past weather data from many thousand weather stations are provided AskGeo.com. It looks like you 're using an old browser and Agriculture Organization of content! Of key lunar average daily temperature portsmouth, nh for 2020, when muggy conditions are essentially unheard of is 15 miles Portsmouth. Particular cautious attention to our reliance on the lower end feel cold for about [ … weather... Best time of year to visit Portsmouth for warm-weather activities is from late June to mid September data 2020! Day over average daily temperature portsmouth, nh course of the day of the year is January 29, with an average total liquid-equivalent of! Significant seasonal variation over the course of the year, we compute two travel.! Above the ground Southern and Northern New Hampshire are listed below in degrees Fahrenheit Celsius! 51°F or exceeding 51°F is frozen is typically between 5 and 10 times the amount! Alone is 33 % on August 28 highs, lows, and precipitation chances, average daily temperature portsmouth, nh to the table.! 20°F or exceeding 88°F daily forecast, scroll to the table below your temperature for! 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