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August Weather in Green River, United States

Last updated: June 24, 2025

In August, the average temperature in Green River, United States is a warm 27°C (81°F). Expect a minimum of 10°C (51°F) and a balmy maximum of 39°C (103°F). With an average humidity of just 34%, the weather is typically dry, bringing about 12 mm (0.5 in) of precipitation over the course of 2 days. Perfect for enjoying a sun-soaked getaway!

August Temperature in Green River

In August in Green River, the average temperature is 27°C (81°F). The maximum can reach 39°C (103°F), while the minimum can be as low as 10°C (51°F). Travelers should be prepared for hot days and cool nights, making it essential to pack layers for varying temperatures.

August Weather in Green River: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Green River, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Green River, August typically has an average temperature of 27°C (81°F), with highs reaching up to 39°C (103°F) and lows dropping to around 10°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec303748566578848171534233
Data source: Temperature data for Green River generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Green River

In Green River in August, the precipitation amount is 12 mm (0.5 in) over the course of 2 days.

August Precipitation Trends in Green River

The chart displays monthly precipitation patterns in Green River, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Green River, August typically receives around 12 mm (0.5 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec1920231120581213231515
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Green River

In Green River in August humidity is 34%. With an average temperature of 27°C (81°F), this humidity feels like a pleasant warmth, making it comfortable for outdoor exploration and leisurely strolls.

August Average Humidity in Green River

This chart illustrates the average monthly humidity levels in Green River, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Green River is approximately 34%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%77%70%54%45%37%34%47%67%82%87%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Green River

In Green River in August, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Green River.

Maximum UV Index Levels in Green River for August

The chart shows the monthly maximum UV Index (UVI) for Green River in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Green River typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec368101112121110753
Data source: Green River August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How August Weather in Green River Compares to Other Months

Weather in Green River varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Green River, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Green River, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)19 mm (0.7 inches)87%moderate
February Weather3°C (37°F)20 mm (0.8 inches)88%high
March Weather9°C (48°F)23 mm (0.9 inches)77%very high
April Weather13°C (56°F)11 mm (0.4 inches)69%very high
May Weather18°C (65°F)20 mm (0.8 inches)54%extreme
June Weather25°C (78°F)5 mm (0.2 inches)45%extreme
July Weather29°C (84°F)8 mm (0.3 inches)37%extreme
August Weather27°C (81°F)12 mm (0.5 inches)34%extreme
September Weather22°C (71°F)13 mm (0.5 inches)47%very high
October Weather11°C (53°F)23 mm (0.9 inches)67%high
November Weather5°C (42°F)15 mm (0.6 inches)82%moderate
December Weather0°C (33°F)15 mm (0.6 inches)87%moderate

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