2025 Compare Climate & Weather:
Pasco, WA vs Sunnyside, WA

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Highlights

On average, there are 203 sunny days per year in Sunnyside. Pasco averages 194 sunny days per year. The US average is 205 sunny days.

Sunnyside, Washington gets 8.2 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.

Sunnyside averages 9.5 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

Sunnyside, Washington
Summer High: the July high is around 90.1 degrees
Winter Low: the January low is 26.4
Rain: averages 8.2 inches of rain a year
Snow: averages 9.5 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

Sunnyside

The annual BestPlaces Comfort Index for Sunnyside is 7.5 (10=best), which means it is one of the most pleasant places in Washington.

7.5 / 10

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

Pasco

The annual BestPlaces Comfort Index for Pasco is 7.5 (10=best), which means it is one of the most pleasant places in Washington.

7.5 / 10

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

Average Monthly High / Low (°F)

Month	Pasco, WA	Sunnyside, WA
January	41° / 29°	41° / 26°
February	48° / 30°	48° / 29°
March	58° / 35°	58° / 35°
April	66° / 40°	66° / 40°
May	75° / 48°	75° / 47°
June	82° / 54°	82° / 53°
July	90° / 59°	90° / 58°
August	89° / 58°	89° / 56°
September	80° / 50°	80° / 48°
October	65° / 40°	67° / 39°
November	50° / 34°	51° / 31°
December	39° / 28°	38° / 25°

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

Month	Hot Days	Freezing Days	Rainy Days	Snowy Days
January	0 / 0	19 / 24	12 / 8	1 / 2
February	0 / 0	17 / 19	9 / 6	1 / 1
March	0 / 0	10 / 11	9 / 6	0 / 0
April	0 / 0	2 / 4	7 / 5	0 / 0
May	2 / 2	0 / 0	7 / 6	0 / 0
June	5 / 5	0 / 0	5 / 4	0 / 0
July	16 / 16	0 / 0	3 / 2	0 / 0
August	15 / 15	0 / 0	2 / 2	0 / 0
September	3 / 4	0 / 0	3 / 3	0 / 0
October	0 / 0	4 / 5	6 / 5	0 / 0
November	0 / 0	12 / 17	11 / 8	0 / 1
December	0 / 0	21 / 26	11 / 8	1 / 3

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 Sunnyside with an average high temperature of 90.1°, which ranks it as one of the hottest places in Washington. In Sunnyside, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Sunnyside are September, May and June.

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 Sunnyside with an average of 24.7°. This is colder than most places in Washington.

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 Sunnyside, there are 42.1 days annually when the high temperature is over 90°, which is one of the hottest places in Washington.

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 Sunnyside, there are 105.0 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Washington.

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 Sunnyside, there are 0.9 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Washington.

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.

December is the wettest month in Sunnyside with 1.3 inches of rain, and the driest month is July with 0.2 inches. The wettest season is Spring with 37% of yearly precipitation and 13% occurs in Autumn, which is the driest season. The annual rainfall of 8.2 inches in Sunnyside means that it is one of the driest places in Washington.

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.

December is the rainiest month in Sunnyside with 8.4 days of rain, and July is the driest month with only 1.9 rainy days. There are 62.6 rainy days annually in Sunnyside, 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 13% 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.

An annual snowfall of 9.5 inches in Sunnyside means that it is snowier than most places in Washington.

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

December is the snowiest month in Sunnyside with 5.8 inches of snow, and 4 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 Pasco 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 Sunnyside 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

Start Your Review of Sunnyside

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2025 Compare Climate & Weather:
Pasco, WA vs Sunnyside, WA

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

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

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 Sunnyside with an average of 24.7°. This is colder than most places in Washington.

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 Sunnyside, there are 42.1 days annually when the high temperature is over 90°, which is one of the hottest places in Washington.

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 Sunnyside, there are 105.0 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Washington.

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 Sunnyside, there are 0.9 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Washington.

An annual snowfall of 3.5 inches in Pasco means that it is less snowy than most places in Washington.

An annual snowfall of 9.5 inches in Sunnyside means that it is snowier than most places in Washington.

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

December is the snowiest month in Sunnyside with 5.8 inches of snow, and 4 months of the year have significant snowfall.

DID YOU KNOW?

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Reviews for Sunnyside 2 Reviews

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2025 Compare Climate & Weather:Pasco, WA vs Sunnyside, WA

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

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

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 Sunnyside with an average of 24.7°. This is colder than most places in Washington.

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 Sunnyside, there are 42.1 days annually when the high temperature is over 90°, which is one of the hottest places in Washington.

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 Sunnyside, there are 105.0 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Washington.

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 Sunnyside, there are 0.9 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Washington.

An annual snowfall of 3.5 inches in Pasco means that it is less snowy than most places in Washington.An annual snowfall of 9.5 inches in Sunnyside means that it is snowier than most places in Washington.

December is the snowiest month in Pasco with 1.4 inches of snow, and 3 months of the year have significant snowfall.December is the snowiest month in Sunnyside with 5.8 inches of snow, and 4 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Pasco 2 Reviews

Reviews for Sunnyside 2 Reviews

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Zips In Pasco, Washington

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2025 Compare Climate & Weather:
Pasco, WA vs Sunnyside, WA

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 Sunnyside with an average of 24.7°. This is colder than most places in Washington.

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 Sunnyside, there are 42.1 days annually when the high temperature is over 90°, which is one of the hottest places in Washington.

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 Sunnyside, there are 105.0 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Washington.

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 Sunnyside, there are 0.9 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Washington.

An annual snowfall of 3.5 inches in Pasco means that it is less snowy than most places in Washington.

An annual snowfall of 9.5 inches in Sunnyside means that it is snowier than most places in Washington.

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

December is the snowiest month in Sunnyside with 5.8 inches of snow, and 4 months of the year have significant snowfall.