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May Weather in Green River, United States

Last updated: June 24, 2025

In Green River, United States, the average temperature in May is a comfortable 18°C (65°F). However, temperatures can vary significantly, with a minimum of -1°C (31°F) and a maximum reaching 35°C (95°F). Expect 20 mm (0.8 in) of precipitation over about 3 days, while the average humidity hovers around 54%, making for a pleasant, relatively dry climate.

May Temperature in Green River

In May in Green River, the average temperature is 18°C (65°F), with maximums reaching up to 35°C (95°F) and minimums dropping as low as -1°C (31°F). This variability in temperature makes Green River an ideal destination for travelers seeking both warm and cool weather experiences.

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

The chart illustrates May 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, May typically has an average temperature of 18°C (65°F), with highs reaching up to 35°C (95°F) and lows dropping to around -1°C (31°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.

May Precipitation in Green River

In Green River in May, the precipitation amount is 20 mm (0.8 in) accumulated over a period of 3 days.

May Precipitation Trends in Green River

The chart displays monthly precipitation patterns in Green River, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Green River, May typically receives around 20 mm (0.8 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec1920231120581213231515
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Green River

In Green River in May, humidity is 54%. With an average temperature of 18°C (65°F), this humidity feels like a light, refreshing breeze, making it comfortable for traveling and exploring the area without the discomfort of excessive stickiness.

May Average Humidity in Green River

This chart illustrates the average monthly humidity levels in Green River, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Green River is approximately 54%, 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 May generated using information from the Copernicus Climate Change Service.

May UV Index in Green River

In Green River in May, 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 May

The chart shows the monthly maximum UV Index (UVI) for Green River in May, 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 May, the maximum UV index in Green River typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec368101112121110753
Data source: Green River May 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 May 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 May’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 May’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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