nomadseason

May Weather in Corvallis, United States

Last updated: June 24, 2025

In Corvallis, United States, the average temperature in May hovers around 8°C (47°F). Expect a notable range, with minimum temperatures dipping to -10°C (14°F) and maximums soaring to 27°C (81°F). This period sees 72 mm (2.8 in) of precipitation spread across 13 days, contributing to a cozy average humidity of 80%.

May Temperature in Corvallis

In May in Corvallis, the average temperature is 8°C (47°F), with maximums reaching 27°C (81°F) and minimums dropping as low as -10°C (14°F). Travelers should be prepared for a wide range of temperatures and pack accordingly to enjoy their stay.

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

The chart illustrates May temperature patterns in Corvallis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Corvallis, May typically has an average temperature of 8°C (47°F), with highs reaching up to 27°C (81°F) and lows dropping to around -10°C (14°F).
JanFebMarAprMayJunJulAugSepOctNovDec232232364756666455392922
Data source: Temperature data for Corvallis 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 Corvallis

In Corvallis in May, the precipitation amount is 72 mm (2.8 in) over a period of 13 days.

May Precipitation Trends in Corvallis

The chart displays monthly precipitation patterns in Corvallis, 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 Corvallis, May typically receives around 72 mm (2.8 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec439860697277172134655863
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Corvallis

In Corvallis in May, humidity is 80%. With an average temperature of 8°C (47°F), this humidity feels like you're walking through a heavy mist, making your clothes cling to your skin and every step prone to a shiver, which can be quite uncomfortable for traveling.

May Average Humidity in Corvallis

This chart illustrates the average monthly humidity levels in Corvallis, 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 Corvallis is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%89%85%80%78%77%66%67%77%89%95%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Corvallis

In Corvallis 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 Corvallis.

Maximum UV Index Levels in Corvallis for May

The chart shows the monthly maximum UV Index (UVI) for Corvallis 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 Corvallis typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346810101098532
Data source: Corvallis 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 Corvallis Compares to Other Months

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

This table compares monthly weather conditions in Corvallis, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)43 mm (1.7 inches)93%moderate
February Weather-5°C (23°F)98 mm (3.9 inches)92%moderate
March Weather0°C (32°F)60 mm (2.4 inches)89%high
April Weather2°C (36°F)69 mm (2.7 inches)85%very high
May Weather8°C (47°F)72 mm (2.8 inches)80%very high
June Weather14°C (57°F)77 mm (3.0 inches)78%very high
July Weather19°C (66°F)17 mm (0.7 inches)77%very high
August Weather18°C (65°F)21 mm (0.8 inches)66%very high
September Weather13°C (55°F)34 mm (1.3 inches)67%very high
October Weather4°C (39°F)65 mm (2.5 inches)77%moderate
November Weather-1°C (30°F)58 mm (2.3 inches)89%moderate
December Weather-6°C (22°F)62 mm (2.5 inches)95%low

Compare Corvallis's Climate with Cities Worldwide