Best year time to visit Challis

General weather information about Challis

Average annual temperature is 5.6 °C

Absolute maximum temperature: 36.0 °C

Absolute minimum temperature: -24.2 °C

Number of sunny days: 203 days

Number of rainy days: 104 days

Number of snow days: 58 days

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

Challis air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)2.15.64.919.025.427.536.035.028.122.512.29.0
Average daytime temperature (°C)-5.2-2.2-0.57.218.220.330.627.621.714.56.1-0.9
Average temperature (°C)-9.1-7.0-5.01.611.914.221.819.813.98.01.1-5.0
Average night temperature (°C)-12.3-10.4-8.7-2.56.08.713.412.97.72.8-2.8-8.3
Absolute minimum temperature (°C)-24.2-19.8-14.4-8.6-0.41.29.46.61.5-8.2-9.8-19.3

Challis 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)9.310.411.913.514.815.515.214.012.511.09.68.9
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.09.08.0
Sunshine mean duration (h)6.38.17.910.912.712.413.311.410.78.77.15.8
Precipitation (mm)20124627485044033211426
Sunny days19161017128231619192321
Rainy days11271922815111062
Snow days111119600000218

Challis - weather forecast by months

Challis weather in januaryChallis weather in februaryChallis weather in marchChallis weather in aprilChallis weather in mayChallis weather in juneChallis weather in julyChallis weather in augustChallis weather in septemberChallis weather in octoberChallis weather in novemberChallis weather in december

Best time to visit Challis:

The best time to visit Challis during the most sunny months:

  • May — 12.7(h)
  • June — 12.4(h)
  • July — 13.3(h)

Months with the longest average daylight duration in Challis:

  • June — 15.5(h)

The largest precipitation sum in Challis is at

  • March — 46(mm)
  • May — 48(mm)
  • June — 50(mm)
  • August — 40(mm)

    • Weather forecast in the closest to Challis admin centers

    Weather forecast in the closest towns to Challis

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    Frequently asked questions

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