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May Weather in Klamath Falls, United States

Last updated: June 24, 2025

In Klamath Falls, United States, the average temperature in May hovers around 12°C (54°F), with a range that can dip to a chilly -2°C (29°F) and spike to a warm 32°C (90°F). Expect about 46 mm (1.8 in) of precipitation over 8 days, contributing to an average humidity level of 79%. Stay prepared for the unpredictable weather!

May Temperature in Klamath Falls

In May in Klamath Falls, average temperature is 12°C (54°F). Maximum can reach 32°C (90°F) and minimum can be as low as -2°C (29°F). This wide temperature range means that visitors should be prepared for both warm days and chilly nights when traveling to Klamath Falls during this month.

May Weather in Klamath Falls: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Klamath Falls, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Klamath Falls, May typically has an average temperature of 12°C (54°F), with highs reaching up to 32°C (90°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec333439455463717061493933
Data source: Temperature data for Klamath Falls 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 Klamath Falls

In Klamath Falls in May, the precipitation amount is 46 mm (1.8 in) over the course of 8 days.

May Precipitation Trends in Klamath Falls

The chart displays monthly precipitation patterns in Klamath Falls, 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 Klamath Falls, May typically receives around 46 mm (1.8 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec7983715447176625396066
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Klamath Falls

In Klamath Falls in May, humidity is 79%. With an average temperature of 12°C (54°F), this humidity makes traveling feel quite muggy, leading to a sticky discomfort that can sap your energy and make outdoor activities less enjoyable.

May Average Humidity in Klamath Falls

This chart illustrates the average monthly humidity levels in Klamath Falls, 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 Klamath Falls is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%87%86%79%80%77%60%57%76%87%88%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Klamath Falls

In Klamath Falls 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 Klamath Falls.

Maximum UV Index Levels in Klamath Falls for May

The chart shows the monthly maximum UV Index (UVI) for Klamath Falls 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 Klamath Falls typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3479111111109643
Data source: Klamath Falls 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 Klamath Falls Compares to Other Months

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

This table compares monthly weather conditions in Klamath Falls, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)79 mm (3.1 inches)87%moderate
February Weather1°C (34°F)83 mm (3.3 inches)87%moderate
March Weather4°C (39°F)71 mm (2.8 inches)87%high
April Weather7°C (46°F)54 mm (2.1 inches)86%very high
May Weather12°C (54°F)46 mm (1.8 inches)79%extreme
June Weather17°C (63°F)17 mm (0.7 inches)80%extreme
July Weather22°C (72°F)6 mm (0.2 inches)77%extreme
August Weather21°C (71°F)6 mm (0.2 inches)60%very high
September Weather16°C (61°F)25 mm (1.0 inches)57%very high
October Weather9°C (49°F)39 mm (1.5 inches)76%high
November Weather4°C (40°F)60 mm (2.4 inches)87%moderate
December Weather1°C (33°F)66 mm (2.6 inches)88%moderate

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