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April Weather in Walla Walla East, United States

Last updated: June 24, 2025

The average temperature in Walla Walla East, United States during April hovers around 9°C (48°F), with a minimum of -7°C (20°F) and a maximum reaching 27°C (80°F). Expect precipitation totaling 62 mm (2.4 in) spread across approximately 11 days, and don’t forget that the average humidity rests at a comfortable 83%.

April Temperature in Walla Walla East

In April in Walla Walla East, the average temperature is 9°C (48°F), with maximums reaching 27°C (80°F) and minimums dropping as low as -7°C (20°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack accordingly for both warm and cold weather.

April Weather in Walla Walla East: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Walla Walla East, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Walla Walla East, April typically has an average temperature of 9°C (48°F), with highs reaching up to 27°C (80°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec343441485765737262494134
Data source: Temperature data for Walla Walla East 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 Walla Walla East

In Walla Walla East in April, the precipitation amount is 62 mm (2.4 in) spread over 11 days.

April Precipitation Trends in Walla Walla East

The chart displays monthly precipitation patterns in Walla Walla East, 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 Walla Walla East, April typically receives around 62 mm (2.4 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec77125756248273825628493
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Walla Walla East

In Walla Walla East in April humidity is 83%. With an average temperature of 9°C (48°F), this humidity feels like an enveloping blanket, making outdoor activities quite uncomfortable and encouraging travelers to seek shelter or shade frequently.

April Average Humidity in Walla Walla East

This chart illustrates the average monthly humidity levels in Walla Walla East, 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 Walla Walla East is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%85%83%77%81%77%60%58%75%85%87%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Walla Walla East

In Walla Walla East in April, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Walla Walla East.

Maximum UV Index Levels in Walla Walla East for April

The chart shows the monthly maximum UV Index (UVI) for Walla Walla East 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 Walla Walla East typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24679101097532
Data source: Walla Walla East 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 Walla Walla East Compares to Other Months

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

This table compares monthly weather conditions in Walla Walla East, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)77 mm (3.0 inches)86%low
February Weather1°C (34°F)125 mm (4.9 inches)86%moderate
March Weather5°C (41°F)75 mm (3.0 inches)85%high
April Weather9°C (48°F)62 mm (2.4 inches)83%high
May Weather14°C (57°F)48 mm (1.9 inches)77%very high
June Weather18°C (65°F)27 mm (1.1 inches)81%very high
July Weather23°C (74°F)2 mm (0.1 inches)76%very high
August Weather22°C (72°F)8 mm (0.3 inches)60%very high
September Weather17°C (62°F)25 mm (1.0 inches)58%high
October Weather9°C (49°F)62 mm (2.4 inches)75%moderate
November Weather5°C (41°F)84 mm (3.3 inches)85%moderate
December Weather1°C (34°F)93 mm (3.7 inches)87%low

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