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April Weather in West Richland, United States

Last updated: June 24, 2025

In West Richland, United States, the average temperature in April hovers around 13°C (56°F). However, be prepared for a range of conditions, with temperatures dipping as low as -1°C (30°F) and soaring up to 33°C (91°F). Expect 22 mm (0.9 in) of precipitation spread over 5 days, contributing to an average humidity of 82%. Stay comfortable and enjoy the climate!

April Temperature in West Richland

In April in West Richland, the average temperature is 13°C (56°F), with maximums reaching 33°C (91°F) and minimums dropping as low as -1°C (30°F). Be prepared for a wide range of temperatures and pack accordingly for your journey!

April Weather in West Richland: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in West Richland, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In West Richland, April typically has an average temperature of 13°C (56°F), with highs reaching up to 33°C (91°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec353646566674828069544236
Data source: Temperature data for West Richland 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 West Richland

In West Richland in April, the total precipitation amount is 22 mm (0.9 in) spread over a period of 5 days.

April Precipitation Trends in West Richland

The chart displays monthly precipitation patterns in West Richland, 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 West Richland, April typically receives around 22 mm (0.9 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec36392622137038233030
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in West Richland

In West Richland in April, humidity is 82%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket wrapping around you, making it feel much cooler than it is and creating a heavy atmosphere that can be exhausting for travelers.

April Average Humidity in West Richland

This chart illustrates the average monthly humidity levels in West Richland, 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 West Richland is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%86%82%77%79%77%62%60%80%87%86%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in West Richland

In West Richland in April, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in West Richland, you can refer to this Hourly UV Index in West Richland.

Maximum UV Index Levels in West Richland for April

The chart shows the monthly maximum UV Index (UVI) for West Richland 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 West Richland typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2356991097532
Data source: West Richland 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 West Richland Compares to Other Months

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

This table compares monthly weather conditions in West Richland, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)36 mm (1.4 inches)85%low
February Weather2°C (37°F)39 mm (1.5 inches)86%moderate
March Weather8°C (47°F)26 mm (1.0 inches)86%moderate
April Weather13°C (56°F)22 mm (0.9 inches)82%high
May Weather19°C (67°F)13 mm (0.5 inches)77%very high
June Weather24°C (75°F)7 mm (0.3 inches)79%very high
July Weather28°C (82°F)0 mm (0.0 inches)77%very high
August Weather27°C (80°F)3 mm (0.1 inches)62%very high
September Weather20°C (69°F)8 mm (0.3 inches)60%high
October Weather12°C (54°F)23 mm (0.9 inches)80%moderate
November Weather6°C (42°F)30 mm (1.2 inches)87%moderate
December Weather2°C (36°F)30 mm (1.2 inches)86%low

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