nomadseason

May Weather in Wallowa, United States

Last updated: June 24, 2025

In May, the average temperature in Wallowa, United States is a cool 8°C (46°F). Temperatures can range from a chilly -6°C (21°F) to a warm 27°C (81°F), offering a diverse climate experience. Expect about 93 mm (3.7 in) of precipitation over roughly 14 days, with an average humidity of 77%. Be prepared for varying weather conditions!

May Temperature in Wallowa

In May in Wallowa, the average temperature is 8°C (46°F), with maximums reaching up to 27°C (81°F) and minimums dropping as low as -6°C (21°F). Travelers should be prepared for a wide range of temperatures when visiting during this month.

May Weather in Wallowa: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Wallowa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Wallowa, May typically has an average temperature of 8°C (46°F), with highs reaching up to 27°C (81°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec262633384655666455413226
Data source: Temperature data for Wallowa 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 Wallowa

In Wallowa, in May, the precipitation amount is 93 mm (3.7 in) over the course of 14 days.

May Precipitation Trends in Wallowa

The chart displays monthly precipitation patterns in Wallowa, 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 Wallowa, May typically receives around 93 mm (3.7 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec911471079393601134457990101
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Wallowa

In Wallowa in May humidity is 77%. With an average temperature of 8°C (46°F), this humidity feels like a damp chill wrapping around you, making outdoor activities less inviting and requiring extra layers to stay comfortable while exploring.

May Average Humidity in Wallowa

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

May UV Index in Wallowa

In Wallowa in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Wallowa.

Maximum UV Index Levels in Wallowa for May

The chart shows the monthly maximum UV Index (UVI) for Wallowa 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 Wallowa typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec347810101098532
Data source: Wallowa 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 Wallowa Compares to Other Months

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

This table compares monthly weather conditions in Wallowa, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)90 mm (3.6 inches)86%moderate
February Weather-3°C (26°F)147 mm (5.8 inches)86%moderate
March Weather1°C (33°F)107 mm (4.2 inches)85%high
April Weather3°C (38°F)93 mm (3.6 inches)83%very high
May Weather8°C (46°F)93 mm (3.7 inches)77%very high
June Weather13°C (56°F)60 mm (2.4 inches)81%very high
July Weather19°C (66°F)11 mm (0.4 inches)76%very high
August Weather18°C (65°F)34 mm (1.3 inches)60%very high
September Weather13°C (55°F)45 mm (1.8 inches)58%very high
October Weather5°C (41°F)79 mm (3.1 inches)75%moderate
November Weather0°C (32°F)90 mm (3.5 inches)85%moderate
December Weather-4°C (26°F)101 mm (4.0 inches)87%low

Compare Wallowa's Climate with Cities Worldwide