Best year time to visit Gallatin County

General weather information about Gallatin County

Average annual temperature is 14.3 °C

Absolute maximum temperature: 34.5 °C

Absolute minimum temperature: -6.9 °C

Number of sunny days: 179 days

Number of rainy days: 179 days

Number of snow days: 7 days

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* Weather data for Gallatin County United States is based on climate observations for 2026 year

Gallatin County air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)17.223.224.528.332.033.933.934.534.430.825.916.6
Average daytime temperature (°C)9.113.613.719.724.328.230.729.727.821.014.110.3
Average temperature (°C)4.96.87.312.917.921.824.923.921.215.38.35.5
Average night temperature (°C)1.82.12.77.512.216.620.519.216.011.14.22.2
Absolute minimum temperature (°C)-4.8-6.9-5.71.04.011.616.713.610.90.1-6.1-5.1

Gallatin County monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.014.013.011.010.09.0
Daylight mean duration (h)9.810.812.013.214.314.814.613.612.411.210.19.5
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)4.37.77.59.410.110.911.511.410.37.47.75.1
Precipitation (mm)1255114210151679612268734061
Sunny days6181616171491516172213
Rainy days22101214141622161414817
Snow days303000000001

Gallatin County - weather forecast by months

Gallatin County weather in januaryGallatin County weather in februaryGallatin County weather in marchGallatin County weather in aprilGallatin County weather in mayGallatin County weather in juneGallatin County weather in julyGallatin County weather in augustGallatin County weather in septemberGallatin County weather in octoberGallatin County weather in novemberGallatin County weather in december

Best time to visit Gallatin County:

The best time to visit Gallatin County during the most sunny months:

  • June — 10.9(h)
  • July — 11.5(h)
  • August — 11.4(h)

The largest precipitation sum in Gallatin County is at

  • January — 125(mm)
  • March — 142(mm)
  • August — 122(mm)

    • Weather forecast in the closest to Gallatin County admin centers

    Weather forecast in the closest towns to Gallatin County

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    Frequently asked questions

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