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April Weather in Corvallis, United States

Last updated: June 24, 2025

In April, the average temperature in Corvallis, United States hovers around 2°C (36°F), with a minimum of -16°C (3°F) and a maximum reaching up to 21°C (70°F). Expect 69 mm (2.7 in) of precipitation spread over 14 days, accompanied by an average humidity of 85%. Be prepared for a chilly and damp month!

April Temperature in Corvallis

In April in Corvallis, the average temperature is 2°C (36°F). The maximum can reach 21°C (70°F) and the minimum can be as low as -16°C (3°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack both warm and mild weather clothing.

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

The chart illustrates April 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, April typically has an average temperature of 2°C (36°F), with highs reaching up to 21°C (70°F) and lows dropping to around -16°C (3°F).
JanFebMarAprMayJunJulAugSepOctNovDec232232364756666455392922
Data source: Temperature data for Corvallis 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 Corvallis

In Corvallis in April, the precipitation amount is 69 mm (2.7 in) over the course of 14 days.

April Precipitation Trends in Corvallis

The chart displays monthly precipitation patterns in Corvallis, 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 Corvallis, April typically receives around 69 mm (2.7 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec439860697277172134655863
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Corvallis

In Corvallis in April, humidity is 85%. With an average temperature of 2°C (36°F), this humidity feels like an icy blanket clinging to your skin, making travel challenging as the cold dampness seeps into your bones and fogs your breath.

April Average Humidity in Corvallis

This chart illustrates the average monthly humidity levels in Corvallis, 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 Corvallis is approximately 85%, 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 April generated using information from the Copernicus Climate Change Service.

April UV Index in Corvallis

In Corvallis in April, 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 Corvallis.

Maximum UV Index Levels in Corvallis for April

The chart shows the monthly maximum UV Index (UVI) for Corvallis 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 Corvallis typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346810101098532
Data source: Corvallis 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 Corvallis Compares to Other Months

Weather in Corvallis varies notably across the year, with each month offering distinct climate conditions. This page compares April’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 April’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

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