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May Weather in South Cle Elum, United States

Last updated: June 24, 2025

In May, the average temperature in South Cle Elum, United States is a crisp 9°C (48°F). Visitors can expect a range from a chilly -3°C (27°F) to a mild 26°C (79°F). During this time, 53 mm (2.1 in) of precipitation typically falls over about 12 days, contributing to an average humidity of 81%. Be prepared for a mix of weather as you explore this vibrant destination!

May Temperature in South Cle Elum

In May in South Cle Elum, the average temperature is 9°C (48°F). Maximums can reach 26°C (79°F), while minimums can plummet as low as -3°C (27°F). Be prepared for a wide range of temperatures when traveling to South Cle Elum during this month.

May Weather in South Cle Elum: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in South Cle Elum, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In South Cle Elum, May typically has an average temperature of 9°C (48°F), with highs reaching up to 26°C (79°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec272632384853606153413327
Data source: Temperature data for South Cle Elum 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 South Cle Elum

In South Cle Elum in May, the total precipitation amount is 53 mm (2.1 in) spread over 12 days.

May Precipitation Trends in South Cle Elum

The chart displays monthly precipitation patterns in South Cle Elum, 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 South Cle Elum, May typically receives around 53 mm (2.1 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec148170947953387751112131164
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in South Cle Elum

In South Cle Elum in May, humidity is 81%. With an average temperature of 9°C (48°F), this humidity feels like a chilly, damp embrace that can make outdoor activities less enjoyable and may require extra layers to stay comfortable while traveling.

May Average Humidity in South Cle Elum

This chart illustrates the average monthly humidity levels in South Cle Elum, 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 South Cle Elum is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%87%84%81%82%79%63%62%83%89%88%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in South Cle Elum

In South Cle Elum in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in South Cle Elum.

Maximum UV Index Levels in South Cle Elum for May

The chart shows the monthly maximum UV Index (UVI) for South Cle Elum 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 South Cle Elum typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec246710101098532
Data source: South Cle Elum 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 South Cle Elum Compares to Other Months

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

This table compares monthly weather conditions in South Cle Elum, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)148 mm (5.8 inches)86%low
February Weather-3°C (26°F)170 mm (6.7 inches)86%moderate
March Weather0°C (33°F)94 mm (3.7 inches)87%high
April Weather3°C (38°F)79 mm (3.1 inches)84%high
May Weather9°C (48°F)53 mm (2.1 inches)81%very high
June Weather12°C (54°F)38 mm (1.5 inches)82%very high
July Weather15°C (60°F)7 mm (0.3 inches)79%very high
August Weather16°C (61°F)7 mm (0.3 inches)63%very high
September Weather12°C (53°F)51 mm (2.0 inches)62%very high
October Weather5°C (41°F)112 mm (4.4 inches)83%moderate
November Weather1°C (33°F)131 mm (5.1 inches)89%moderate
December Weather-3°C (27°F)164 mm (6.4 inches)88%low

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