2025 Compare Climate & Weather:
Spokane, WA vs Waterloo, IA

Highlights

On average, there are 194 sunny days per year in Waterloo. Spokane averages 171 sunny days per year. The US average is 205 sunny days.

Waterloo, Iowa gets 35.7 inches of rain, on average, per year. Spokane, Washington gets 17.2 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Waterloo averages 33.9 inches of snow per year. Spokane averages 43.9 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Waterloo, Iowa
Summer High: the July high is around 83.4 degrees
Winter Low: the January low is 8.4
Rain: averages 35.7 inches of rain a year
Snow: averages 33.9 inches of snow a year

Spokane, Washington
Summer High: the July high is around 83.5 degrees
Winter Low: the January low is 24
Rain: averages 17.2 inches of rain a year
Snow: averages 43.9 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Waterloo is 6.7 (10=best), which means it is less comfortable than most places in Iowa.

The annual BestPlaces Comfort Index for Spokane is 6.7 (10=best), which means it is less comfortable than most places in Washington.

Today's Weather - Spokane, WA

54°F

Today's Weather - Waterloo, IA

52°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Spokane / Waterloo

July is the hottest month for Spokane with an average high temperature of 83.5°, which ranks it as warmer than most places in Washington. In Spokane, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Spokane are June, September and August.

July is the hottest month for Waterloo with an average high temperature of 83.4°, which ranks it as cooler than most places in Iowa. In Waterloo, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Waterloo are June, August and September.

December has the coldest nighttime temperatures for Spokane with an average of 22.1°. This is colder than most places in Washington.

January has the coldest nighttime temperatures for Waterloo with an average of 8.4°. This is colder than most places in Iowa.

In Spokane, there are 16.1 days annually when the high temperature is over 90°, which is hotter than most places in Washington.

In Waterloo, there are 11.5 days annually when the high temperature is over 90°, which is cooler than most places in Iowa.

In Spokane, there are 133.3 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Washington.

In Waterloo, there are 150.4 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Iowa.

In Spokane, there are 2.1 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Washington.

In Waterloo, there are 21.5 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Iowa.

December is the wettest month in Spokane with 2.5 inches of rain, and the driest month is August with 0.6 inches. The wettest season is Spring with 34% of yearly precipitation and 15% occurs in Autumn, which is the driest season. The annual rainfall of 17.2 inches in Spokane means that it is drier than most places in Washington.


June is the wettest month in Waterloo with 5.2 inches of rain, and the driest month is January with 0.9 inches. The wettest season is Autumn with 41% of yearly precipitation and 9% occurs in Spring, which is the driest season. The annual rainfall of 35.7 inches in Waterloo means that it is about average compared to other places in Iowa.

November is the rainiest month in Spokane with 14.0 days of rain, and August is the driest month with only 3.9 rainy days. There are 115.0 rainy days annually in Spokane, which is less rainy than most places in Washington. The rainiest season is Spring when it rains 33% of the time and the driest is Autumn with only a 14% chance of a rainy day.

May is the rainiest month in Waterloo with 11.9 days of rain, and February is the driest month with only 6.5 rainy days. There are 105.3 rainy days annually in Waterloo, which is rainier than most places in Iowa. The rainiest season is Summer when it rains 29% of the time and the driest is Spring with only a 20% chance of a rainy day.

An annual snowfall of 43.9 inches in Spokane means that it is one of the snowiest places in Washington.

An annual snowfall of 33.9 inches in Waterloo means that it is snowier than most places in Iowa.

December is the snowiest month in Spokane with 14.5 inches of snow, and 6 months of the year have significant snowfall.

December is the snowiest month in Waterloo with 9.6 inches of snow, and 6 months of the year have significant snowfall.