2025 Compare Climate & Weather:
Marysville, WA vs Casper, WY

Highlights

On average, there are 220 sunny days per year in Casper. Marysville averages 163 sunny days per year. The US average is 205 sunny days.

Casper, Wyoming gets 13 inches of rain, on average, per year. Marysville, Washington gets 44.5 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Casper averages 70.3 inches of snow per year. Marysville averages 4 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Casper, Wyoming
Summer High: the July high is around 88.2 degrees
Winter Low: the January low is 15.4
Rain: averages 13 inches of rain a year
Snow: averages 70.3 inches of snow a year

Marysville, Washington
Summer High: the July high is around 75.2 degrees
Winter Low: the January low is 35.1
Rain: averages 44.5 inches of rain a year
Snow: averages 4 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Casper is 6.8 (10=best), which means it is more comfortable than most places in Wyoming.

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

Today's Weather - Marysville, WA

59°F

Today's Weather - Casper, WY

63°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Marysville / Casper

August is the hottest month for Marysville with an average high temperature of 76.0°, which ranks it as cooler than most places in Washington. In Marysville, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Marysville are August, July and September.

July is the hottest month for Casper with an average high temperature of 88.2°, which ranks it as warmer than most places in Wyoming. In Casper, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Casper are June, September and August.

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

January has the coldest nighttime temperatures for Casper with an average of 15.4°. This is one of the warmest places in Wyoming.

In Marysville, there are 1.3 days annually when the high temperature is over 90°, which is cooler than most places in Washington.

In Casper, there are 29.7 days annually when the high temperature is over 90°, which is hotter than most places in Wyoming.

In Marysville, there are 41.8 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Washington.

In Casper, there are 168.3 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Wyoming.

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

In Casper, there are 12.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Wyoming.

November is the wettest month in Marysville with 6.5 inches of rain, and the driest month is July with 1.3 inches. The wettest season is Spring with 34% of yearly precipitation and 12% occurs in Autumn, which is the driest season. The annual rainfall of 44.5 inches in Marysville means that it is wetter than most places in Washington.


May is the wettest month in Casper with 2.2 inches of rain, and the driest month is January with 0.5 inches. The wettest season is Summer with 35% of yearly precipitation and 14% occurs in Spring, which is the driest season. The annual rainfall of 13.0 inches in Casper means that it is about average compared to other places in Wyoming.

November is the rainiest month in Marysville with 19.9 days of rain, and August is the driest month with only 5.9 rainy days. There are 173.7 rainy days annually in Marysville, which is rainier than most places in Washington. The rainiest season is Spring when it rains 32% of the time and the driest is Autumn with only a 14% chance of a rainy day.

May is the rainiest month in Casper with 10.0 days of rain, and January is the driest month with only 5.0 rainy days. There are 79.2 rainy days annually in Casper, which is rainier than most places in Wyoming. The rainiest season is Summer when it rains 32% of the time and the driest is Spring with only a 20% chance of a rainy day.

An annual snowfall of 4.0 inches in Marysville means that it is less snowy than most places in Washington.

An annual snowfall of 70.3 inches in Casper means that it is snowier than most places in Wyoming.

December is the snowiest month in Marysville with 1.6 inches of snow, and 4 months of the year have significant snowfall.

March is the snowiest month in Casper with 11.5 inches of snow, and 9 months of the year have significant snowfall.