2025 Compare Climate & Weather:
St. Helen, MI vs Flagstaff, AZ

Highlights

On average, there are 266 sunny days per year in Flagstaff. St. Helen averages 165 sunny days per year. The US average is 205 sunny days.

Flagstaff, Arizona gets 20.7 inches of rain, on average, per year. St. Helen, Michigan gets 30.6 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Flagstaff averages 81 inches of snow per year. St. Helen averages 60.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Flagstaff, Arizona
Summer High: the July high is around 81.7 degrees
Winter Low: the January low is 14.3
Rain: averages 20.7 inches of rain a year
Snow: averages 81 inches of snow a year

St. Helen, Michigan
Summer High: the July high is around 80 degrees
Winter Low: the January low is 9.4
Rain: averages 30.6 inches of rain a year
Snow: averages 60.1 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Flagstaff is 6.9 (10=best), which means it is one of the least comfortable places in Arizona.

The annual BestPlaces Comfort Index for St. Helen is 6.2 (10=best), which means it is less comfortable than most places in Michigan.

Today's Weather - St. Helen, MI

64°F

Today's Weather - Flagstaff, AZ

70°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: St. Helen / Flagstaff

July is the hottest month for St. Helen with an average high temperature of 80.0°, which ranks it as cooler than most places in Michigan. In St. Helen, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for St. Helen are August, July and June.

July is the hottest month for Flagstaff with an average high temperature of 81.7°, which ranks it as one of the coolest places in Arizona. In Flagstaff, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Flagstaff are June, August and July.

January has the coldest nighttime temperatures for St. Helen with an average of 9.4°. This is colder than most places in Michigan.

January has the coldest nighttime temperatures for Flagstaff with an average of 14.3°. This is one of the coldest places in Arizona.

In St. Helen, there are 3.2 days annually when the high temperature is over 90°, which is cooler than most places in Michigan.

In Flagstaff, there are 3.4 days annually when the high temperature is over 90°, which is one of the coolest places in Arizona.

In St. Helen, there are 173.5 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Michigan.

In Flagstaff, there are 210.5 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Arizona.

In St. Helen, there are 19.8 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Michigan.

In Flagstaff, there are 7.8 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Arizona.

August is the wettest month in St. Helen with 3.6 inches of rain, and the driest month is February with 1.3 inches. The wettest season is Autumn with 32% of yearly precipitation and 15% occurs in Spring, which is the driest season. The annual rainfall of 30.6 inches in St. Helen means that it is one of the driest places in Michigan.


August is the wettest month in Flagstaff with 3.3 inches of rain, and the driest month is June with 0.3 inches. The wettest season is Autumn with 29% of yearly precipitation and 17% occurs in Summer, which is the driest season. The annual rainfall of 20.7 inches in Flagstaff means that it is wetter than most places in Arizona.

December is the rainiest month in St. Helen with 13.6 days of rain, and July is the driest month with only 9.7 rainy days. There are 135.6 rainy days annually in St. Helen, which is rainier than most places in Michigan. The rainiest season is Spring when it rains 27% of the time and the driest is Autumn with only a 23% chance of a rainy day.

August is the rainiest month in Flagstaff with 13.8 days of rain, and June is the driest month with only 2.8 rainy days. There are 83.4 rainy days annually in Flagstaff, which is one of the rainiest places in Arizona. The rainiest season is Autumn when it rains 34% of the time and the driest is Summer with only a 20% chance of a rainy day.

An annual snowfall of 60.1 inches in St. Helen means that it is about average compared to other places in Michigan.

An annual snowfall of 81.0 inches in Flagstaff means that it is one of the snowiest places in Arizona.

December is the snowiest month in St. Helen with 15.5 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in Flagstaff with 19.1 inches of snow, and 8 months of the year have significant snowfall.