Best year time to visit Grand Lake

General weather information about Grand Lake

Average annual temperature is 19.9 °C

Absolute maximum temperature: 38.8 °C

Absolute minimum temperature: -1.4 °C

Number of sunny days: 195 days

Number of rainy days: 170 days

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

Grand Lake air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)23.727.127.529.631.637.337.138.835.632.628.324.7
Average daytime temperature (°C)16.018.221.223.328.433.033.835.731.626.418.916.0
Average temperature (°C)11.512.715.417.723.227.328.830.226.220.713.910.6
Average night temperature (°C)8.18.811.213.318.422.524.925.921.716.110.16.5
Absolute minimum temperature (°C)-0.6-1.4-0.29.210.420.221.920.518.06.42.10.0

Grand Lake monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.013.012.011.010.010.0
Daylight mean duration (h)10.211.012.013.013.914.314.113.312.411.410.510.0
Daylight minimum duration (h)10.010.011.012.013.014.013.012.011.010.010.09.0
Sunshine mean duration (h)6.46.98.88.511.212.211.511.710.68.76.47.6
Precipitation (mm)208107752025472602229364865
Sunny days131515131112132216231923
Rainy days181316172018189148118
Snow days000000000000

Grand Lake - weather forecast by months

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

Best time to visit Grand Lake:

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

  • June — 12.2(h)
  • August — 11.7(h)

The largest precipitation sum in Grand Lake is at

  • January — 208(mm)
  • February — 107(mm)
  • April — 202(mm)

    • Weather forecast in the closest to Grand Lake admin centers

    Weather forecast in the closest towns to Grand Lake

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    Frequently asked questions

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