Casper weather in January 2026

Expect daytime maximum temperatures of 34°F in Casper, Wyoming in January based on long-term weather averages. There are 6 hours of sunshine per day on average, which might fall as snow.

  • 34°F maximum daytime temperature in January in Casper34
    34°F max day temperature
  • 6 hours of sunshine per day
  • 8 days with some rainfall in January in Casper8
    8 days with some rainfall
  • 12°F minimum night-time temperature in January in Casper12
    12°F min night temperature
  • 9 hours of daylight per day in January in Casper9
    9 hours of daylight per day
  • No heat & humidity in January in Casper0
    No heat & humidity
  • 0.5 inches monthly rainfall in January in Casper0.5
    0.5 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in January in Casper2
    2 (Low) UV index

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The January weather guide for Wyoming (Casper) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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How cold is it in Casper in January?

Daytime temperatures usually reach 34°F in Casper in January, falling to 12°F at night.

How sunny is it in Casper in January?

There are normally 6 hours of bright sunshine each day in Casper in January - that's 61% of daylight hours.

Does it rain in Casper in January?

There are usually 8 days with some rain in Casper in January and the average monthly rainfall is 0.5 inches. Rain may fall as snow in this month.

Casper January sunrise & sunset times

Browse the sunrise and sunset times for Casper in January 2026. Select a month to view Casper sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st January 2026 07:36 16:42
Friday, 16th January 2026 07:33 16:58
Saturday, 31st January 2026 07:21 17:17

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