2025 Compare Climate & Weather:
St. Louis, MO vs Eugene, OR

Highlights

On average, there are 155 sunny days per year in Eugene. St. Louis averages 202 sunny days per year. The US average is 205 sunny days.

Eugene, Oregon gets 47 inches of rain, on average, per year. St. Louis, Missouri gets 42.2 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Eugene averages 3 inches of snow per year. St. Louis averages 15.5 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Eugene, Oregon
Summer High: the July high is around 81.5 degrees
Winter Low: the January low is 34.1
Rain: averages 47 inches of rain a year
Snow: averages 3 inches of snow a year

St. Louis, Missouri
Summer High: the July high is around 88.5 degrees
Winter Low: the January low is 22.8
Rain: averages 42.2 inches of rain a year
Snow: averages 15.5 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Eugene is 7.4 (10=best), which means it is more comfortable than most places in Oregon.

The annual BestPlaces Comfort Index for St. Louis is 7.2 (10=best), which means it is more comfortable than most places in Missouri.

Today's Weather - St. Louis, MO

64°F

Today's Weather - Eugene, OR

49°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: St. Louis / Eugene

July is the hottest month for St. Louis with an average high temperature of 88.5°, which ranks it as about average compared to other places in Missouri. In St. Louis, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for St. Louis are May, September and June.

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

January has the coldest nighttime temperatures for St. Louis with an average of 22.8°. This is warmer than most places in Missouri.

December has the coldest nighttime temperatures for Eugene with an average of 33.9°. This is warmer than most places in Oregon.

In St. Louis, there are 36.0 days annually when the high temperature is over 90°, which is hotter than most places in Missouri.

In Eugene, there are 13.1 days annually when the high temperature is over 90°, which is cooler than most places in Oregon.

In St. Louis, there are 91.1 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Missouri.

In Eugene, there are 46.9 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Oregon.

In St. Louis, there are 1.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Missouri.

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

May is the wettest month in St. Louis with 4.8 inches of rain, and the driest month is February with 2.3 inches. The wettest season is Summer with 29% of yearly precipitation and 18% occurs in Spring, which is the driest season. The annual rainfall of 42.2 inches in St. Louis means that it is drier than most places in Missouri.


December is the wettest month in Eugene with 7.8 inches of rain, and the driest month is July with 0.6 inches. The wettest season is Spring with 42% of yearly precipitation and 6% occurs in Autumn, which is the driest season. The annual rainfall of 47.0 inches in Eugene means that it is wetter than most places in Oregon.

May is the rainiest month in St. Louis with 11.3 days of rain, and September is the driest month with only 7.0 rainy days. There are 105.3 rainy days annually in St. Louis, which is rainier than most places in Missouri. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 23% chance of a rainy day.

December is the rainiest month in Eugene with 18.9 days of rain, and July is the driest month with only 3.2 rainy days. There are 151.2 rainy days annually in Eugene, 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 15.5 inches in St. Louis means that it is snowier than most places in Missouri.

An annual snowfall of 3.0 inches in Eugene means that it is about average compared to other places in Oregon.

January is the snowiest month in St. Louis with 4.9 inches of snow, and 5 months of the year have significant snowfall.

February is the snowiest month in Eugene with 1.4 inches of snow, and 3 months of the year have significant snowfall.