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April Weather in Klamath Falls, United States

Last updated: June 24, 2025

In April, the average temperature in Klamath Falls, United States hovers around 7°C (46°F). However, temperatures can vary significantly, with a minimum of -5°C (24°F) and a maximum of 27°C (81°F). This month also sees an average precipitation of 54 mm (2.1 in) over 10 days, contributing to a high average humidity of 86%.

April Temperature in Klamath Falls

In April in Klamath Falls, the average temperature is 7°C (46°F), with maximums reaching up to 27°C (81°F) and minimums dipping as low as -5°C (24°F). It's advisable to pack layers to accommodate the wide temperature range for a comfortable and enjoyable travel experience.

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

The chart illustrates April 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, April typically has an average temperature of 7°C (46°F), with highs reaching up to 27°C (81°F) and lows dropping to around -5°C (24°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.

April Precipitation in Klamath Falls

In Klamath Falls in April, the total precipitation amount is 54 mm (2.1 in) over the course of 10 days.

April Precipitation Trends in Klamath Falls

The chart displays monthly precipitation patterns in Klamath Falls, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Klamath Falls, April typically receives around 54 mm (2.1 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec7983715447176625396066
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Klamath Falls

In Klamath Falls in April humidity is 86%. With an average temperature of 7°C (46°F), this humidity feels like wrapping yourself in a damp blanket, making travel uncomfortable and heavy, as the cold air mixes with the muggy atmosphere, leaving you longing for a warm, dry refuge.

April Average Humidity in Klamath Falls

This chart illustrates the average monthly humidity levels in Klamath Falls, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Klamath Falls is approximately 86%, 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 April generated using information from the Copernicus Climate Change Service.

April UV Index in Klamath Falls

In Klamath Falls in April, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Klamath Falls.

Maximum UV Index Levels in Klamath Falls for April

The chart shows the monthly maximum UV Index (UVI) for Klamath Falls in April, 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 April, the maximum UV index in Klamath Falls typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3479111111109643
Data source: Klamath Falls April 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 April 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 April’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 April’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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