2025 Compare Climate & Weather:
Lewiston, ME vs Corvallis, OR

Highlights

On average, there are 159 sunny days per year in Corvallis. Lewiston averages 197 sunny days per year. The US average is 205 sunny days.

Corvallis, Oregon gets 51.4 inches of rain, on average, per year. Lewiston, Maine gets 47.7 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Corvallis averages 5.4 inches of snow per year. Lewiston averages 74.2 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Corvallis, Oregon
Summer High: the July high is around 81.6 degrees
Winter Low: the January low is 34.1
Rain: averages 51.4 inches of rain a year
Snow: averages 5.4 inches of snow a year

Lewiston, Maine
Summer High: the July high is around 78.8 degrees
Winter Low: the January low is 8.9
Rain: averages 47.7 inches of rain a year
Snow: averages 74.2 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Corvallis is 7.3 (10=best), which means it is more comfortable than most places in Oregon.

The annual BestPlaces Comfort Index for Lewiston is 6.3 (10=best), which means it is less comfortable than most places in Maine.

Today's Weather - Lewiston, ME

49°F

Today's Weather - Corvallis, OR

58°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Lewiston / Corvallis

July is the hottest month for Lewiston with an average high temperature of 78.8°, which ranks it as about average compared to other places in Maine. In Lewiston, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Lewiston are August, July and June.

August is the hottest month for Corvallis with an average high temperature of 82.4°, which ranks it as about average compared to other places in Oregon. In Corvallis, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Corvallis are September, July and August.

January has the coldest nighttime temperatures for Lewiston with an average of 8.9°. This is about average compared to other places in Maine.

December has the coldest nighttime temperatures for Corvallis with an average of 33.8°. This is about average compared to other places in Oregon.

In Lewiston, there are 3.3 days annually when the high temperature is over 90°, which is about average compared to other places in Maine.

In Corvallis, there are 12.4 days annually when the high temperature is over 90°, which is cooler than most places in Oregon.

In Lewiston, there are 156.8 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Maine.

In Corvallis, there are 45.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Oregon.

In Lewiston, there are 14.8 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Maine.

In Corvallis, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Oregon.

November is the wettest month in Lewiston with 4.8 inches of rain, and the driest month is February with 3.3 inches. The wettest season is Winter with 28% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 47.7 inches in Lewiston means that it is about average compared to other places in Maine.


December is the wettest month in Corvallis with 9.3 inches of rain, and the driest month is July with 0.5 inches. The wettest season is Spring with 45% of yearly precipitation and 5% occurs in Autumn, which is the driest season. The annual rainfall of 51.4 inches in Corvallis means that it is wetter than most places in Oregon.

June is the rainiest month in Lewiston with 12.9 days of rain, and February is the driest month with only 9.1 rainy days. There are 132.0 rainy days annually in Lewiston, which is rainier than most places in Maine. The rainiest season is Autumn when it rains 26% of the time and the driest is Winter with only a 24% chance of a rainy day.

January is the rainiest month in Corvallis with 20.5 days of rain, and July is the driest month with only 3.3 rainy days. There are 161.8 rainy days annually in Corvallis, which is rainier than most places in Oregon. The rainiest season is Spring when it rains 35% of the time and the driest is Autumn with only a 10% chance of a rainy day.

An annual snowfall of 74.2 inches in Lewiston means that it is snowier than most places in Maine.

An annual snowfall of 5.4 inches in Corvallis means that it is snowier than most places in Oregon.

January is the snowiest month in Lewiston with 21.2 inches of snow, and 6 months of the year have significant snowfall.

February is the snowiest month in Corvallis with 2.5 inches of snow, and 3 months of the year have significant snowfall.