2025 Compare Climate & Weather:
Algona, IA vs Boulder, CO

Highlights

On average, there are 245 sunny days per year in Boulder. Algona averages 197 sunny days per year. The US average is 205 sunny days.

Boulder, Colorado gets 18.1 inches of rain, on average, per year. Algona, Iowa gets 32.4 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Boulder averages 71.1 inches of snow per year. Algona averages 35.3 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Boulder, Colorado
Summer High: the July high is around 88.1 degrees
Winter Low: the January low is 18.9
Rain: averages 18.1 inches of rain a year
Snow: averages 71.1 inches of snow a year

Algona, Iowa
Summer High: the July high is around 82.5 degrees
Winter Low: the January low is 6.8
Rain: averages 32.4 inches of rain a year
Snow: averages 35.3 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Boulder is 7.1 (10=best), which means it is about average compared to other places in Colorado.

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

Today's Weather - Algona, IA

64°F

Today's Weather - Boulder, CO

57°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Algona / Boulder

July is the hottest month for Algona with an average high temperature of 82.5°, which ranks it as cooler than most places in Iowa. In Algona, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Algona are June, August and September.

July is the hottest month for Boulder with an average high temperature of 88.1°, which ranks it as about average compared to other places in Colorado. In Boulder, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Boulder are September, June and May.

January has the coldest nighttime temperatures for Algona with an average of 6.8°. This is colder than most places in Iowa.

December has the coldest nighttime temperatures for Boulder with an average of 18.3°. This is one of the warmest places in Colorado.

In Algona, there are 9.6 days annually when the high temperature is over 90°, which is cooler than most places in Iowa.

In Boulder, there are 32.4 days annually when the high temperature is over 90°, which is about average compared to other places in Colorado.

In Algona, there are 157.7 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Iowa.

In Boulder, there are 151.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Colorado.

In Algona, there are 25.1 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Iowa.

In Boulder, there are 5.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Colorado.

June is the wettest month in Algona with 5.1 inches of rain, and the driest month is January with 0.7 inches. The wettest season is Autumn with 42% of yearly precipitation and 8% occurs in Spring, which is the driest season. The annual rainfall of 32.4 inches in Algona means that it is drier than most places in Iowa.


May is the wettest month in Boulder with 2.5 inches of rain, and the driest month is January with 0.6 inches. The wettest season is Summer with 37% of yearly precipitation and 11% occurs in Spring, which is the driest season. The annual rainfall of 18.1 inches in Boulder means that it is wetter than most places in Colorado.

June is the rainiest month in Algona with 11.0 days of rain, and February is the driest month with only 4.4 rainy days. There are 91.1 rainy days annually in Algona, which is less rainy than most places in Iowa. The rainiest season is Autumn when it rains 32% of the time and the driest is Spring with only a 16% chance of a rainy day.

May is the rainiest month in Boulder with 10.5 days of rain, and January is the driest month with only 4.7 rainy days. There are 88.0 rainy days annually in Boulder, which is rainier than most places in Colorado. The rainiest season is Autumn when it rains 31% of the time and the driest is Spring with only a 17% chance of a rainy day.

An annual snowfall of 35.3 inches in Algona means that it is snowier than most places in Iowa.

An annual snowfall of 71.1 inches in Boulder means that it is snowier than most places in Colorado.

December is the snowiest month in Algona with 8.5 inches of snow, and 6 months of the year have significant snowfall.

March is the snowiest month in Boulder with 14.3 inches of snow, and 9 months of the year have significant snowfall.