2025 Compare Climate & Weather:
Ritzville, WA vs Prosser, WA

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Highlights

On average, there are 190 sunny days per year in Prosser. Ritzville averages 182 sunny days per year. The US average is 205 sunny days.

Prosser, Washington gets 8.5 inches of rain, on average, per year. Ritzville, Washington gets 12.1 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Prosser averages 5.8 inches of snow per year. Ritzville averages 19.6 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Prosser, Washington
Summer High: the July high is around 89.3 degrees
Winter Low: the January low is 27.2
Rain: averages 8.5 inches of rain a year
Snow: averages 5.8 inches of snow a year

Ritzville, Washington
Summer High: the July high is around 86 degrees
Winter Low: the January low is 23.6
Rain: averages 12.1 inches of rain a year
Snow: averages 19.6 inches of snow a year

BestPlaces Comfort Index

Prosser

The annual BestPlaces Comfort Index for Prosser is 7.6 (10=best), which means it is one of the most pleasant places in Washington.

7.6 / 10

June, September and May are the most pleasant months in Prosser, while December and January are the least comfortable months.

Ritzville

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

7.1 / 10

September, August and July are the most pleasant months in Ritzville, while December and January are the least comfortable months.

Average Monthly High / Low (°F)

Month	Ritzville, WA	Prosser, WA
January	36° / 24°	41° / 27°
February	42° / 26°	48° / 29°
March	52° / 30°	58° / 35°
April	61° / 34°	66° / 40°
May	69° / 40°	74° / 47°
June	77° / 46°	81° / 53°
July	86° / 52°	89° / 57°
August	86° / 51°	88° / 56°
September	76° / 44°	80° / 49°
October	62° / 35°	66° / 40°
November	45° / 29°	50° / 32°
December	34° / 22°	38° / 26°

Hot, Freezing, Rainy, Snowy Days: Ritzville / Prosser

Month	Hot Days	Freezing Days	Rainy Days	Snowy Days
January	0 / 0	26 / 22	10 / 9	4 / 1
February	0 / 0	22 / 18	9 / 7	2 / 1
March	0 / 0	19 / 10	9 / 7	1 / 0
April	0 / 0	12 / 4	7 / 6	0 / 0
May	1 / 2	4 / 0	7 / 6	0 / 0
June	2 / 4	0 / 0	6 / 4	0 / 0
July	11 / 15	0 / 0	3 / 2	0 / 0
August	10 / 13	0 / 0	3 / 2	0 / 0
September	3 / 3	2 / 0	4 / 3	0 / 0
October	0 / 0	11 / 4	6 / 5	0 / 0
November	0 / 0	20 / 15	12 / 8	2 / 1
December	0 / 0	27 / 24	11 / 9	5 / 2

July is the hottest month for Ritzville with an average high temperature of 86.0°, which ranks it as warmer than most places in Washington. In Ritzville, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Ritzville are June, September and August.

July is the hottest month for Prosser with an average high temperature of 89.3°, which ranks it as one of the hottest places in Washington. In Prosser, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Prosser are September, June and May.

December has the coldest nighttime temperatures for Ritzville with an average of 21.7°. This is colder than most places in Washington.

December has the coldest nighttime temperatures for Prosser with an average of 25.7°. This is colder than most places in Washington.

In Ritzville, there are 26.5 days annually when the high temperature is over 90°, which is hotter than most places in Washington.

In Prosser, there are 37.7 days annually when the high temperature is over 90°, which is one of the hottest places in Washington.

In Ritzville, there are 143.6 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Washington.

In Prosser, there are 97.9 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Washington.

In Ritzville, there are 2.6 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Washington.

In Prosser, there are 0.7 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Washington.

December is the wettest month in Ritzville with 1.7 inches of rain, and the driest month is August with 0.4 inches. The wettest season is Spring with 35% of yearly precipitation and 14% occurs in Autumn, which is the driest season. The annual rainfall of 12.1 inches in Ritzville means that it is drier than most places in Washington.

December is the wettest month in Prosser with 1.3 inches of rain, and the driest month is July with 0.2 inches. The wettest season is Spring with 38% of yearly precipitation and 13% occurs in Autumn, which is the driest season. The annual rainfall of 8.5 inches in Prosser means that it is one of the driest places in Washington.

November is the rainiest month in Ritzville with 11.5 days of rain, and August is the driest month with only 2.8 rainy days. There are 86.0 rainy days annually in Ritzville, which is less rainy than most places in Washington. The rainiest season is Spring when it rains 35% of the time and the driest is Autumn with only a 14% chance of a rainy day.

December is the rainiest month in Prosser with 9.3 days of rain, and July is the driest month with only 2.0 rainy days. There are 67.5 rainy days annually in Prosser, which is one of the least rainy places in Washington. The rainiest season is Spring when it rains 36% of the time and the driest is Autumn with only a 12% chance of a rainy day.

An annual snowfall of 19.6 inches in Ritzville means that it is snowier than most places in Washington.

An annual snowfall of 5.8 inches in Prosser means that it is about average compared to other places in Washington.

December is the snowiest month in Ritzville with 6.5 inches of snow, and 5 months of the year have significant snowfall.

December is the snowiest month in Prosser with 3.6 inches of snow, and 3 months of the year have significant snowfall.

DID YOU KNOW?

Many people confuse Weather and Climate, but they are different. Weather refers to the conditions of the atmosphere over a short period of time, while Climate refers to the conditions of the atmosphere over a long period of time.

Weather, more specifically, refers to how the atmosphere behaves and its effects on life and human activities. Most people think of Weather in terms of what can be observed: temperature, humidity, precipitation, and cloudy/sunny conditions. Weather conditions constantly change on a minute-to-minute basis.

Climate is a record of the average weather conditions for a given place over a long period of time, often referred to as Climate Normals. A 30-year period of record is a common requirement to be considered a Climate Normal.

Reviews for Ritzville 2 Reviews

Jill · Sherman Oaks, CA

re:

Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't More

| Reply

NC For Me · Apex, NC

re:

Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but More

| Reply

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Reviews for Prosser 2 Reviews

Jill · Sherman Oaks, CA

re:

Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't More

| Reply

NC For Me · Apex, NC

re:

Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but More

| Reply

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2025 Compare Climate & Weather:
Ritzville, WA vs Prosser, WA

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Ritzville / Prosser

December has the coldest nighttime temperatures for Ritzville with an average of 21.7°. This is colder than most places in Washington.

December has the coldest nighttime temperatures for Prosser with an average of 25.7°. This is colder than most places in Washington.

In Ritzville, there are 26.5 days annually when the high temperature is over 90°, which is hotter than most places in Washington.

In Prosser, there are 37.7 days annually when the high temperature is over 90°, which is one of the hottest places in Washington.

In Ritzville, there are 143.6 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Washington.

In Prosser, there are 97.9 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Washington.

In Ritzville, there are 2.6 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Washington.

In Prosser, there are 0.7 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Washington.

An annual snowfall of 19.6 inches in Ritzville means that it is snowier than most places in Washington.

An annual snowfall of 5.8 inches in Prosser means that it is about average compared to other places in Washington.

December is the snowiest month in Ritzville with 6.5 inches of snow, and 5 months of the year have significant snowfall.

December is the snowiest month in Prosser with 3.6 inches of snow, and 3 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Ritzville 2 Reviews

Reviews for Prosser 2 Reviews

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2025 Compare Climate & Weather:Ritzville, WA vs Prosser, WA

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Ritzville / Prosser

December has the coldest nighttime temperatures for Ritzville with an average of 21.7°. This is colder than most places in Washington.December has the coldest nighttime temperatures for Prosser with an average of 25.7°. This is colder than most places in Washington.

In Ritzville, there are 26.5 days annually when the high temperature is over 90°, which is hotter than most places in Washington.In Prosser, there are 37.7 days annually when the high temperature is over 90°, which is one of the hottest places in Washington.

In Ritzville, there are 143.6 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Washington.In Prosser, there are 97.9 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Washington.

In Ritzville, there are 2.6 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Washington.In Prosser, there are 0.7 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Washington.

An annual snowfall of 19.6 inches in Ritzville means that it is snowier than most places in Washington.An annual snowfall of 5.8 inches in Prosser means that it is about average compared to other places in Washington.

December is the snowiest month in Ritzville with 6.5 inches of snow, and 5 months of the year have significant snowfall.December is the snowiest month in Prosser with 3.6 inches of snow, and 3 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Ritzville 2 Reviews

Reviews for Prosser 2 Reviews

Most Recent Searches On Compare Climate & Weather

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Zips In Ritzville, Washington

Zips In PROSSER, WASHINGTON

Learn More About RITZVILLE, WASHINGTON

Learn More About Prosser, Washington

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BestPlaces Tools

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2025 Compare Climate & Weather:
Ritzville, WA vs Prosser, WA

December has the coldest nighttime temperatures for Ritzville with an average of 21.7°. This is colder than most places in Washington.

December has the coldest nighttime temperatures for Prosser with an average of 25.7°. This is colder than most places in Washington.

In Ritzville, there are 26.5 days annually when the high temperature is over 90°, which is hotter than most places in Washington.

In Prosser, there are 37.7 days annually when the high temperature is over 90°, which is one of the hottest places in Washington.

In Ritzville, there are 143.6 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Washington.

In Prosser, there are 97.9 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Washington.

In Ritzville, there are 2.6 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Washington.

In Prosser, there are 0.7 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Washington.

An annual snowfall of 19.6 inches in Ritzville means that it is snowier than most places in Washington.

An annual snowfall of 5.8 inches in Prosser means that it is about average compared to other places in Washington.

December is the snowiest month in Ritzville with 6.5 inches of snow, and 5 months of the year have significant snowfall.

December is the snowiest month in Prosser with 3.6 inches of snow, and 3 months of the year have significant snowfall.