Best year time to visit Portsmouth Plains

General weather information about Portsmouth Plains

Average annual temperature is 10.3 °C

Absolute maximum temperature: 31.0 °C

Absolute minimum temperature: -25.9 °C

Number of sunny days: 162 days

Number of rainy days: 192 days

Number of snow days: 11 days

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* Weather data for Portsmouth Plains United States is based on climate observations for 2026 year

Portsmouth Plains air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)11.914.514.525.230.228.130.929.131.027.518.015.0
Average daytime temperature (°C)4.74.36.513.019.221.026.824.622.618.18.66.8
Average temperature (°C)1.2-1.02.48.413.616.822.720.318.413.44.02.8
Average night temperature (°C)-1.7-5.5-1.34.58.513.419.216.515.19.70.3-0.4
Absolute minimum temperature (°C)-9.0-25.9-5.4-3.92.58.514.813.58.02.0-5.7-7.7

Portsmouth Plains monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.410.511.913.414.715.315.013.912.511.09.79.1
Daylight minimum duration (h)9.09.011.012.014.015.014.013.011.010.09.08.0
Sunshine mean duration (h)4.16.47.38.811.78.810.09.98.07.77.05.0
Precipitation (mm)15847115117891191701451278648169
Sunny days913151620761112152117
Rainy days18101414112325201816914
Snow days452000000000

Portsmouth Plains - weather forecast by months

Portsmouth Plains weather in januaryPortsmouth Plains weather in februaryPortsmouth Plains weather in marchPortsmouth Plains weather in aprilPortsmouth Plains weather in mayPortsmouth Plains weather in junePortsmouth Plains weather in julyPortsmouth Plains weather in augustPortsmouth Plains weather in septemberPortsmouth Plains weather in octoberPortsmouth Plains weather in novemberPortsmouth Plains weather in december

Best time to visit Portsmouth Plains:

The best time to visit Portsmouth Plains during the most sunny months:

  • May — 11.7(h)
  • July — 10.0(h)
  • August — 9.9(h)

Months with the longest average daylight duration in Portsmouth Plains:

  • June — 15.3(h)

The largest precipitation sum in Portsmouth Plains is at

  • January — 158(mm)
  • July — 170(mm)
  • December — 169(mm)

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    Weather forecast in the closest towns to Portsmouth Plains

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    Frequently asked questions

    When is the best time to visit Portsmouth Plains?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Portsmouth Plains.
    What is the weather like in Portsmouth Plains?
    See average temperature, rainfall and daylight hours for Portsmouth Plains by month in the table above.
    How many sunny days does Portsmouth Plains have?
    The monthly weather statistics above show sunshine and rainfall patterns for Portsmouth Plains throughout the year.