Green River weather in January 2026

Expect daytime maximum temperatures of -2°C in Green River, Wyoming in January based on long-term weather averages. There are 6 hours of sunshine per day on average, which might fall as snow.

  • -2°C maximum daytime temperature in January in Green River-2
    -2°C max day temperature
  • 6 hours of sunshine per day
  • 7 days with some rainfall in January in Green River7
    7 days with some rainfall
  • -15°C minimum night-time temperature in January in Green River-15
    -15°C min night temperature
  • 10 hours of daylight per day in January in Green River10
    10 hours of daylight per day
  • No heat & humidity in January in Green River0
    No heat & humidity
  • 14 mm monthly rainfall in January in Green River14
    14 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in January in Green River2
    2 (Low) UV index

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The January weather guide for Wyoming (Green River) 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 / mm)  |  Imperial (°F / inches)

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How cold is it in Green River in January?

Daytime temperatures usually reach -2°C in Green River in January, falling to -15°C at night.

How sunny is it in Green River in January?

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

Does it rain in Green River in January?

There are usually 7 days with some rain in Green River in January and the average monthly rainfall is 14mm. Rain may fall as snow in this month.

Green River January sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st January 2026 07:44 16:59
Friday, 16th January 2026 07:41 17:14
Saturday, 31st January 2026 07:30 17:33

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