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October Weather in Corvallis, United States

Last updated: June 24, 2025

In October, the average temperature in Corvallis, United States is a crisp 12°C (53°F). Be prepared for a range of conditions, as temperatures can dip to a minimum of -4°C (25°F) and soar to a maximum of 27°C (81°F). Expect 84 mm (3.3 in) of precipitation spread over about 10 days, accompanied by an average humidity level of 81%.

October Temperature in Corvallis

In October in Corvallis, the average temperature is 12°C (53°F). Maximums can reach 27°C (81°F) and minimums can be as low as -4°C (25°F). Pack accordingly to enjoy a range of temperatures during your travels!

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

The chart illustrates October 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, October typically has an average temperature of 12°C (53°F), with highs reaching up to 27°C (81°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec414145505663686963534641
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.

October Precipitation in Corvallis

In Corvallis in October, the precipitation amount is 84 mm (3.3 in) over a span of 10 days.

October Precipitation Trends in Corvallis

The chart displays monthly precipitation patterns in Corvallis, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Corvallis, October typically receives around 84 mm (3.3 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec1551791331176042356184139189
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Corvallis

In Corvallis in October, humidity is 81%. With an average temperature of 12°C (53°F), this humidity feels like a chilly dampness enveloping you, making outdoor activities uncomfortable and requiring layers to stay warm while you explore.

October Average Humidity in Corvallis

This chart illustrates the average monthly humidity levels in Corvallis, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Corvallis is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%85%83%83%84%82%74%71%81%87%87%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Corvallis

In Corvallis in October, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Corvallis.

Maximum UV Index Levels in Corvallis for October

The chart shows the monthly maximum UV Index (UVI) for Corvallis in October, 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 October, the maximum UV index in Corvallis typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec246710101098532
Data source: Corvallis October 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 October 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 October’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 October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)155 mm (6.1 inches)85%low
February Weather5°C (41°F)179 mm (7.0 inches)84%moderate
March Weather7°C (45°F)133 mm (5.2 inches)85%high
April Weather10°C (50°F)117 mm (4.6 inches)83%high
May Weather13°C (57°F)60 mm (2.3 inches)83%very high
June Weather17°C (63°F)42 mm (1.7 inches)83%very high
July Weather20°C (69°F)3 mm (0.1 inches)82%very high
August Weather21°C (69°F)5 mm (0.2 inches)74%very high
September Weather17°C (64°F)61 mm (2.4 inches)71%very high
October Weather12°C (53°F)84 mm (3.3 inches)81%moderate
November Weather8°C (46°F)139 mm (5.5 inches)87%moderate
December Weather5°C (41°F)189 mm (7.4 inches)87%low

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