Green River weather in August 2025

Expect daytime maximum temperatures of 81°F in Green River, Wyoming in August based on long-term weather averages. There are 10 hours of sunshine per day on average.

  • 81°F maximum daytime temperature in August in Green River81
    81°F max day temperature
  • 10 hours of sunshine per day
  • 6 days with some rainfall in August in Green River6
    6 days with some rainfall
  • 45°F minimum night-time temperature in August in Green River45
    45°F min night temperature
  • 14 hours of daylight per day in August in Green River14
    14 hours of daylight per day
  • Low heat & humidity in August in Green RiverL
    Low heat & humidity
  • 0.7 inches monthly rainfall in August in Green River0.7
    0.7 inches of monthly rainfall
  • UV (maximum) index 9 (Very High) in August in Green River9
    9 (Very High) UV index

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The August 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)  |  Imperial (°F)

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How hot is it in Green River in August?

Daytime temperatures usually reach 81°F in Green River in August with low heat and humidity, falling to 45°F at night.

How sunny is it in Green River in August?

There are normally 10 hours of bright sunshine each day in Green River in August - that's 75% of daylight hours.

Does it rain in Green River in August?

There are usually 6 days with some rain in Green River in August and the average monthly rainfall is 0.7 inches.

Green River August sunrise & sunset times

Browse the sunrise and sunset times for Green River in August 2025. Select a month to view Green River sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:13 19:35
Saturday, 16th August 2025 05:28 19:15
Sunday, 31st August 2025 05:43 18:52

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