nomadseason

May Weather in Spokane Valley, United States

Last updated: June 24, 2025

In Spokane Valley, United States during May, the average temperature hovers around 14°C (57°F). Expect a range from a chilly 0°C (32°F) to a warm 31°C (89°F). You'll likely encounter approximately 53 mm (2.1 in) of precipitation spread over 8 days, with an average humidity of 77%.

May Temperature in Spokane Valley

In May in Spokane Valley, the average temperature is 14°C (57°F). Maximums can reach 31°C (89°F), while minimums can drop as low as 0°C (32°F). Be prepared for a range of temperatures when traveling during this month.

May Weather in Spokane Valley: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Spokane Valley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Spokane Valley, May typically has an average temperature of 14°C (57°F), with highs reaching up to 31°C (89°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec303039465765747361473832
Data source: Temperature data for Spokane Valley generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Spokane Valley

In Spokane Valley in May, the total precipitation amount is 53 mm (2.1 in) over the course of 8 days.

May Precipitation Trends in Spokane Valley

The chart displays monthly precipitation patterns in Spokane Valley, 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 Spokane Valley, May typically receives around 53 mm (2.1 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec82746560532441035628883
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Spokane Valley

In Spokane Valley in May, humidity is 77%. With an average temperature of 14°C (57°F), this humidity feels like a heavy blanket wrapping around you, making outdoor exploration feel muggy and leaving you craving the shade while you travel.

May Average Humidity in Spokane Valley

This chart illustrates the average monthly humidity levels in Spokane Valley, 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 Spokane Valley is approximately 77%, 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 May generated using information from the Copernicus Climate Change Service.

May UV Index in Spokane Valley

In Spokane Valley in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Spokane Valley.

Maximum UV Index Levels in Spokane Valley for May

The chart shows the monthly maximum UV Index (UVI) for Spokane Valley 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 Spokane Valley typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2456891097532
Data source: Spokane Valley 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 Spokane Valley Compares to Other Months

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

This table compares monthly weather conditions in Spokane Valley, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)82 mm (3.2 inches)89%low
February Weather-1°C (30°F)74 mm (2.9 inches)89%moderate
March Weather4°C (39°F)65 mm (2.6 inches)87%moderate
April Weather8°C (47°F)60 mm (2.4 inches)84%high
May Weather14°C (57°F)53 mm (2.1 inches)77%very high
June Weather19°C (66°F)24 mm (0.9 inches)78%very high
July Weather23°C (74°F)4 mm (0.2 inches)77%very high
August Weather23°C (73°F)10 mm (0.4 inches)64%very high
September Weather16°C (62°F)35 mm (1.4 inches)62%high
October Weather8°C (47°F)62 mm (2.4 inches)79%moderate
November Weather3°C (38°F)88 mm (3.5 inches)87%moderate
December Weather0°C (32°F)83 mm (3.2 inches)90%low

Compare Spokane Valley's Climate with Cities Worldwide