Portsmouth, Rhode Island, United States Climate

Weather: 6.52°C/43.74°F, Wind SW at 2.57 km/h, 66% Humidity, 0% Chance of rain

United States
(Photo by Kawshar Ahmed on Unsplash)
Contents

Portsmouth Climate Summary

Located at an elevation of 43.14 meters (141.54 feet) above sea level, Portsmouth has a Humid subtropical, no dry season climate (Classification: Cfa). The district’s yearly temperature is 12.1ºC (53.78ºF) and it is -0.54% lower than United States’s averages. Portsmouth typically receives about 41.28 millimeters (1.63 inches) of precipitation and has 40.64 rainy days (11.13% of the time) annually.

CountryUnited States
CityRhode Island
Longitude-71.2503257
Latitude41.6023245
Attitude/Elevation43.14m (141.54ft)
Local timeSaturday 21:17
Annual high temperature14.27ºC (57.69ºF)
Annual low temperature8.03ºC (46.45ºF)
Average annual precip.41.28mm (1.63in)
Warmest monthJuly (26.61ºC / 79.9ºF)
Coldest MonthJanuary (-2.78ºC / 27.0ºF)
Wettest MonthDecember (62.68mm / 2.47in)
Driest MonthSeptember (22.84mm / 0.9in)
Number of days with rainfall (≥ 1.0 mm)40.64 days (11.13%)
Days with no rain324.36 days (88.87%)
Humidity73.9%

Climate Portsmouth: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)15.0(59.0)14.0(57.2)16.0(60.8)18.0(64.4)27.0(80.6)30.0(86.0)34.0(93.2)32.0(89.6)30.0(86.0)25.0(77.0)19.0(66.2)16.0(60.8)34.0(93.2)
Average high °C (°F)3.05(37.49)4.98(40.96)6.4(43.52)10.87(51.57)17.08(62.74)22.28(72.1)26.61(79.9)26.23(79.21)22.18(71.92)16.26(61.27)10.01(50.02)5.35(41.63)14.27(57.69)
Daily mean °C (°F)1.06(33.91)2.84(37.11)4.29(39.72)8.64(47.55)14.56(58.21)19.96(67.93)24.41(75.94)23.92(75.06)19.92(67.86)14.18(57.52)7.87(46.17)3.51(38.32)12.1(53.78)
Average low °C (°F)-2.78(27.0)-0.92(30.34)0.46(32.83)4.58(40.24)9.96(49.93)15.24(59.43)20.12(68.22)19.84(67.71)15.87(60.57)10.17(50.31)3.84(38.91)-0.08(31.86)8.03(46.45)
Record low °C (°F)-18.0(-0.4)-17.0(1.4)-11.0(12.2)-3.0(26.6)3.0(37.4)8.0(46.4)15.0(59.0)14.0(57.2)8.0(46.4)-3.0(26.6)-9.0(15.8)-9.0(15.8)-18.0(-0.4)
Average precipitation mm (inches)42.91(1.69)44.6(1.76)46.49(1.83)43.28(1.7)30.33(1.19)33.66(1.33)38.61(1.52)32.59(1.28)22.84(0.9)51.54(2.03)45.84(1.8)62.68(2.47)41.28(1.63)
Average precipitation days (≥ 1.0 mm)2.554.03.364.273.643.553.453.732.453.553.093.03.39
Average relative humidity (%)68.9171.0570.9472.976.1476.5877.676.9675.5975.1771.6273.3273.9
Mean monthly sunshine hours6.748.539.0710.0412.4313.2313.6112.2510.268.046.536.599.78

Climate Graph

The chart below shows the mean monthly temperature and precipitation of Portsmouth in recent years.

Portsmouth

Portsmouth Temperature by Month

July
24.41°C | 75.94°F
August
23.92°C | 75.06°F
June
19.96°C | 67.93°F
September
19.92°C | 67.86°F
May
14.56°C | 58.21°F
October
14.18°C | 57.52°F
April
8.64°C | 47.55°F
November
7.87°C | 46.17°F
March
4.29°C | 39.72°F
December
3.51°C | 38.32°F
February
2.84°C | 37.11°F
January
1.06°C | 33.91°F

Historical Data

Summary
  • 2020
  • 2019
  • 2018
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature19.0°C (66.2°F)12.23°C (54.01°F)2.0°C (35.6°F)
Avg Temperature17.0°C (62.6°F)10.23°C (50.41°F)1.0°C (33.8°F)
Min Temperature13.0°C (55.4°F)5.87°C (42.57°F)-2.0°C (28.4°F)
Dew PointMaxAverageMin
Dew Point15.0°C (59.0°F)5.2°C (41.36°F)-9.0°C (15.8°F)
PrecipitationMaxAverageMinSum
Precipitation35.1mm | 1.38in4.94mm | 0.19in0.0mm | 0in148.1mm | 5.83in
Snowdepth0.0mm | 0in0.0mm | 0in0.0mm | 0in0.0mm | 0in
WindMaxAverageMin
Wind32.0kmh | 19.88mph18.97kmh | 11.79mph7.0kmh | 4.35mph
Gust Wind45.0kmh | 27.96mph29.23kmh | 18.16mph12.0kmh | 7.46mph
Sea Level PressureMaxAverageMin
Sea Level Pressure35.1mb4.94mb0.0mb
Portsmouth

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
November° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2020-11-0113 | 55.48 | 46.47824 | 14.9130.09 | 10199.2 | 0.36
2020-11-023 | 37.4-0 | 32.07232 | 19.8829.5 | 99924.9 | 0.98
2020-11-036 | 42.8-2 | 28.46027 | 16.7829.88 | 10120.1 | 0.0
2020-11-046 | 42.8-1 | 30.26214 | 8.730.45 | 10310.0 | 0.0
2020-11-0515 | 59.012 | 53.68323 | 14.2930.39 | 10290.0 | 0.0
2020-11-0616 | 60.812 | 53.68418 | 11.1830.27 | 10250.1 | 0.0
2020-11-0716 | 60.810 | 50.07612 | 7.4630.24 | 10240.0 | 0.0
2020-11-0816 | 60.811 | 51.8797 | 4.3530.33 | 10270.0 | 0.0
2020-11-0915 | 59.010 | 50.0739 | 5.5930.3 | 10260.0 | 0.0
2020-11-1016 | 60.812 | 53.68215 | 9.3230.21 | 10230.0 | 0.0
2020-11-1117 | 62.615 | 59.09323 | 14.2930.09 | 10190.2 | 0.01
2020-11-1216 | 60.814 | 57.28718 | 11.1829.91 | 10131.6 | 0.06
2020-11-1311 | 51.88 | 46.48514 | 8.730.0 | 10166.3 | 0.25
2020-11-147 | 44.62 | 35.66820 | 12.4330.03 | 10170.0 | 0.0
2020-11-159 | 48.24 | 39.27422 | 13.6730.0 | 101615.4 | 0.61
2020-11-168 | 46.42 | 35.66430 | 18.6429.77 | 10087.6 | 0.3
2020-11-176 | 42.8-2 | 28.45921 | 13.0529.88 | 10120.0 | 0.0
2020-11-181 | 33.8-9 | 15.85021 | 13.0530.24 | 10240.0 | 0.0
2020-11-194 | 39.2-4 | 24.85920 | 12.4330.47 | 10320.0 | 0.0
2020-11-2011 | 51.85 | 41.06529 | 18.0230.33 | 10270.0 | 0.0
2020-11-2111 | 51.86 | 42.87313 | 8.0830.3 | 10260.0 | 0.0
2020-11-226 | 42.83 | 37.47619 | 11.8130.45 | 10310.0 | 0.0
2020-11-2311 | 51.88 | 46.48328 | 17.429.97 | 101535.1 | 1.38
2020-11-245 | 41.0-4 | 24.85821 | 13.0530.21 | 10230.0 | 0.0
2020-11-258 | 46.4-0 | 32.06416 | 9.9430.39 | 10290.2 | 0.01
2020-11-2614 | 57.212 | 53.69515 | 9.3230.15 | 102121.9 | 0.86
2020-11-2712 | 53.610 | 50.0898 | 4.9729.97 | 10151.0 | 0.04
2020-11-289 | 48.24 | 39.2739 | 5.5929.94 | 10140.4 | 0.02
2020-11-297 | 44.61 | 33.86614 | 8.730.09 | 10190.0 | 0.0
2020-11-3012 | 53.69 | 48.28327 | 16.7829.94 | 101424.1 | 0.95

Portsmouth 3 Year Historical Weather Data

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