Best year time to visit Grand Portage

General weather information about Grand Portage

Average annual temperature is 5.7 °C

Absolute maximum temperature: 29.5 °C

Absolute minimum temperature: -28.0 °C

Number of sunny days: 175 days

Number of rainy days: 135 days

Number of snow days: 55 days

Look at detailed online map of Grand Portage

* Weather data for Grand Portage United States is based on climate observations for 2026 year

Grand Portage air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)2.25.43.814.724.825.726.428.029.523.113.08.7
Average daytime temperature (°C)-4.0-3.9-0.94.614.920.420.521.018.911.13.82.4
Average temperature (°C)-6.8-8.2-4.21.010.316.117.017.415.78.20.7-0.4
Average night temperature (°C)-9.3-12.1-7.2-2.06.312.414.014.413.05.9-1.9-2.7
Absolute minimum temperature (°C)-24.3-28.0-14.5-8.4-0.67.110.89.07.7-4.5-13.0-9.7

Grand Portage monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.010.012.014.015.016.015.015.013.011.09.08.0
Daylight mean duration (h)8.910.211.913.715.216.015.614.312.610.89.38.5
Daylight minimum duration (h)8.09.011.012.014.015.015.013.011.010.08.08.0
Sunshine mean duration (h)3.86.67.27.211.211.812.310.29.15.85.13.1
Precipitation (mm)3352521772941666240543353
Sunny days17121712191991511111716
Rainy days22212121122161919810
Snow days121412600000155

Grand Portage - weather forecast by months

Grand Portage weather in januaryGrand Portage weather in februaryGrand Portage weather in marchGrand Portage weather in aprilGrand Portage weather in mayGrand Portage weather in juneGrand Portage weather in julyGrand Portage weather in augustGrand Portage weather in septemberGrand Portage weather in octoberGrand Portage weather in novemberGrand Portage weather in december

Best time to visit Grand Portage:

The best time to visit Grand Portage during the most sunny months:

  • May — 11.2(h)
  • June — 11.8(h)
  • July — 12.3(h)
  • August — 10.2(h)

Months with the longest average daylight duration in Grand Portage:

  • June — 16.0(h)
  • July — 15.6(h)

The largest precipitation sum in Grand Portage is at

  • April — 177(mm)

    • Weather forecast in the closest to Grand Portage admin centers

    Weather forecast in the closest towns to Grand Portage

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    Frequently asked questions

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