2025 Compare Climate & Weather:
Johnstown, PA vs Phoenix, AZ

Highlights

On average, there are 299 sunny days per year in Phoenix. Johnstown averages 166 sunny days per year. The US average is 205 sunny days.

Phoenix, Arizona gets 9.2 inches of rain, on average, per year. Johnstown, Pennsylvania gets 44.5 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Phoenix averages 0 inches of snow per year. Johnstown averages 50.9 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Phoenix, Arizona
Summer High: the July high is around 104.5 degrees
Winter Low: the January low is 43.2
Rain: averages 9.2 inches of rain a year
Snow: averages 0 inches of snow a year

Johnstown, Pennsylvania
Summer High: the July high is around 84.2 degrees
Winter Low: the January low is 18.6
Rain: averages 44.5 inches of rain a year
Snow: averages 50.9 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Phoenix is 7.3 (10=best), which means it is less comfortable than most places in Arizona.

The annual BestPlaces Comfort Index for Johnstown is 6.8 (10=best), which means it is less comfortable than most places in Pennsylvania.

Today's Weather - Johnstown, PA

46°F

Today's Weather - Phoenix, AZ

72°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Johnstown / Phoenix

July is the hottest month for Johnstown with an average high temperature of 84.2°, which ranks it as warmer than most places in Pennsylvania. In Johnstown, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Johnstown are September, June and August.

July is the hottest month for Phoenix with an average high temperature of 104.5°, which ranks it as warmer than most places in Arizona. In Phoenix, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Phoenix are March, November and April.

January has the coldest nighttime temperatures for Johnstown with an average of 18.6°. This is about average compared to other places in Pennsylvania.

December has the coldest nighttime temperatures for Phoenix with an average of 42.2°. This is one of the warmest places in Arizona.

In Johnstown, there are 13.3 days annually when the high temperature is over 90°, which is hotter than most places in Pennsylvania.

In Phoenix, there are 163.2 days annually when the high temperature is over 90°, which is hotter than most places in Arizona.

In Johnstown, there are 131.1 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Pennsylvania.

In Phoenix, there are 3.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Arizona.

In Johnstown, there are 5.0 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Pennsylvania.

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

May is the wettest month in Johnstown with 4.4 inches of rain, and the driest month is February with 2.8 inches. The wettest season is Autumn with 28% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 44.5 inches in Johnstown means that it is wetter than most places in Pennsylvania.


August is the wettest month in Phoenix with 1.1 inches of rain, and the driest month is June with 0.0 inches. The wettest season is Spring with 35% of yearly precipitation and 16% occurs in Summer, which is the driest season. The annual rainfall of 9.2 inches in Phoenix means that it is drier than most places in Arizona.

January is the rainiest month in Johnstown with 14.5 days of rain, and August is the driest month with only 10.5 rainy days. There are 149.6 rainy days annually in Johnstown, which is rainier than most places in Pennsylvania. The rainiest season is Spring when it rains 27% of the time and the driest is Winter with only a 23% chance of a rainy day.

August is the rainiest month in Phoenix with 4.0 days of rain, and June is the driest month with only 0.4 rainy days. There are 33.1 rainy days annually in Phoenix, which is less rainy than most places in Arizona. The rainiest season is Spring 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 50.9 inches in Johnstown means that it is snowier than most places in Pennsylvania.

There is rarely any recorded snowfall in Phoenix, ranking it as one of the least snowy places in Arizona.

January is the snowiest month in Johnstown with 15.2 inches of snow, and 6 months of the year have significant snowfall.

Any measurable snowfall is a rare occurance in Phoenix.