2025 Compare Climate & Weather:
Pasco, WA vs Phoenix, AZ

Highlights

On average, there are 299 sunny days per year in Phoenix. Pasco averages 194 sunny days per year. The US average is 205 sunny days.

Phoenix, Arizona gets 9.2 inches of rain, on average, per year. Pasco, Washington gets 8.1 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. Pasco averages 3.5 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

Pasco, Washington
Summer High: the July high is around 90 degrees
Winter Low: the January low is 28.7
Rain: averages 8.1 inches of rain a year
Snow: averages 3.5 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 Pasco is 7.5 (10=best), which means it is one of the most pleasant places in Washington.

Today's Weather - Pasco, WA

81°F

Today's Weather - Phoenix, AZ

81°F

Average Monthly High / Low (°F)

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

July is the hottest month for Pasco with an average high temperature of 90.0°, which ranks it as one of the hottest places in Washington. In Pasco, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Pasco are September, May and June.

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.

December has the coldest nighttime temperatures for Pasco with an average of 27.5°. This is colder than most places in Washington.

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

In Pasco, there are 40.3 days annually when the high temperature is over 90°, which is one of the hottest places in Washington.

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

In Pasco, there are 86.9 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Washington.

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 Pasco, there are 0.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Washington.

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.

December is the wettest month in Pasco with 1.2 inches of rain, and the driest month is August with 0.2 inches. The wettest season is Spring with 38% of yearly precipitation and 14% occurs in Autumn, which is the driest season. The annual rainfall of 8.1 inches in Pasco means that it is one of the driest places in Washington.


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 Pasco with 11.5 days of rain, and August is the driest month with only 2.3 rainy days. There are 83.2 rainy days annually in Pasco, which is less rainy than most places in Washington. The rainiest season is Spring when it rains 38% of the time and the driest is Autumn with only a 12% 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 3.5 inches in Pasco means that it is less snowy than most places in Washington.

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

December is the snowiest month in Pasco with 1.4 inches of snow, and 3 months of the year have significant snowfall.

Any measurable snowfall is a rare occurance in Phoenix.