Weather in Casper in August

General weather information about Casper

Average annual temperature is 7.6 °C

Absolute maximum temperature: 37.4 °C

Absolute minimum temperature: -27.8 °C

Number of sunny days: 208 days

Number of rainy days: 103 days

Number of snow days: 54 days

Look at detailed online map of Casper

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

Casper air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)4.75.310.519.025.529.437.435.532.326.816.111.5
Average daytime temperature (°C)-2.3-0.52.69.420.222.430.829.325.815.58.75.1
Average temperature (°C)-5.1-5.1-3.13.713.715.922.021.217.37.72.8-0.3
Average night temperature (°C)-8.2-8.6-7.7-1.07.610.613.713.910.21.8-1.6-4.4
Absolute minimum temperature (°C)-26.9-27.8-16.0-9.73.96.78.38.45.2-8.8-16.7-13.2

Casper 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)9.410.511.913.414.615.315.013.912.511.09.89.1
Daylight minimum duration (h)9.09.011.012.014.015.014.013.011.010.09.09.0
Sunshine mean duration (h)5.28.19.310.111.210.612.711.711.08.57.27.3
Precipitation (mm)60301767831165522662166
Sunny days131616161010201523222324
Rainy days2228212011167851
Snow days161013600000126

Casper - weather forecast by months

Casper weather in januaryCasper weather in februaryCasper weather in marchCasper weather in aprilCasper weather in mayCasper weather in juneCasper weather in julyCasper weather in augustCasper weather in septemberCasper weather in octoberCasper weather in novemberCasper weather in december

Best time to visit Casper:

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

  • July — 12.7(h)

Months with the longest average daylight duration in Casper:

  • June — 15.3(h)

The largest precipitation sum in Casper is at

  • January — 60(mm)
  • April — 67(mm)
  • May — 83(mm)
  • June — 116(mm)
  • October — 62(mm)

    • Weather forecast in the closest to Casper admin centers

    Weather forecast in the closest towns to Casper

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    Frequently asked questions

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