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April Weather in Pullman, United States

Last updated: June 24, 2025

In April, the average temperature in Pullman, United States hovers around 9°C (48°F). Temperatures can range significantly, with a minimum of -5°C (24°F) and a maximum of 28°C (82°F). Expect about 57 mm (2.2 in) of precipitation spread over 10 days, accompanied by a high average humidity of 84%.

April Temperature in Pullman

In April in Pullman, the average temperature is 9°C (48°F), with maximums reaching 28°C (82°F) and minimums dropping as low as -5°C (24°F). Therefore, travelers should be prepared for a wide range of temperatures and dress accordingly.

April Weather in Pullman: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Pullman, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Pullman, April typically has an average temperature of 9°C (48°F), with highs reaching up to 28°C (82°F) and lows dropping to around -5°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec333341485765747363494033
Data source: Temperature data for Pullman 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 Pullman

In Pullman in April, the precipitation amount is 57 mm (2.2 in) over a span of 10 days.

April Precipitation Trends in Pullman

The chart displays monthly precipitation patterns in Pullman, 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 Pullman, April typically receives around 57 mm (2.2 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec7098685752273822648285
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Pullman

In Pullman in April, humidity is 84%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that envelops you, making it essential to dress in layers and stay active, as the moisture in the air can quickly lead to discomfort while traveling.

April Average Humidity in Pullman

This chart illustrates the average monthly humidity levels in Pullman, 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 Pullman is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%89%87%84%78%78%77%64%62%79%87%90%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Pullman

In Pullman 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 Pullman.

Maximum UV Index Levels in Pullman for April

The chart shows the monthly maximum UV Index (UVI) for Pullman 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 Pullman typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457991097532
Data source: Pullman 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 Pullman Compares to Other Months

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

This table compares monthly weather conditions in Pullman, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)70 mm (2.8 inches)89%low
February Weather0°C (33°F)98 mm (3.9 inches)89%moderate
March Weather5°C (41°F)68 mm (2.7 inches)87%moderate
April Weather9°C (48°F)57 mm (2.2 inches)84%high
May Weather14°C (57°F)52 mm (2.1 inches)77%very high
June Weather18°C (65°F)27 mm (1.1 inches)78%very high
July Weather24°C (75°F)3 mm (0.1 inches)77%very high
August Weather23°C (74°F)8 mm (0.3 inches)64%very high
September Weather17°C (63°F)22 mm (0.9 inches)62%high
October Weather9°C (49°F)64 mm (2.5 inches)79%moderate
November Weather4°C (40°F)82 mm (3.2 inches)87%moderate
December Weather1°C (33°F)85 mm (3.3 inches)90%low

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