Best year time to visit Grand Summit

General weather information about Grand Summit

Average annual temperature is 14.9 °C

Absolute maximum temperature: 37.8 °C

Absolute minimum temperature: -11.7 °C

Number of sunny days: 226 days

Number of rainy days: 137 days

Number of snow days: 2 days

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

Grand Summit air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)15.419.725.530.531.636.835.837.835.231.723.116.3
Average daytime temperature (°C)8.210.413.821.725.730.232.332.629.721.413.69.9
Average temperature (°C)2.63.67.414.119.524.426.526.923.515.98.25.2
Average night temperature (°C)-1.4-1.12.48.014.219.121.621.818.211.33.91.9
Absolute minimum temperature (°C)-11.7-10.7-7.3-0.55.314.617.416.213.6-3.2-6.9-4.3

Grand Summit monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.014.012.011.010.09.0
Daylight mean duration (h)9.910.812.013.214.214.714.413.612.411.210.29.6
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)6.97.98.210.210.412.412.012.110.68.17.45.8
Precipitation (mm)365639547367984323974772
Sunny days221719181313162423192220
Rainy days81112121817157712810
Snow days100000000001

Grand Summit - weather forecast by months

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

Best time to visit Grand Summit:

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

  • June — 12.4(h)
  • July — 12.0(h)
  • August — 12.1(h)

The largest precipitation sum in Grand Summit is at

  • July — 98(mm)
  • October — 97(mm)

    • Weather forecast in the closest to Grand Summit admin centers

    Weather forecast in the closest towns to Grand Summit

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    Frequently asked questions

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