2025 Compare Climate & Weather:
Boulder, CO vs Beaverton, OR

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Highlights

On average, there are 141 sunny days per year in Beaverton. Boulder averages 245 sunny days per year. The US average is 205 sunny days.

Beaverton, Oregon gets 40.7 inches of rain, on average, per year. Boulder, Colorado gets 18.1 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Beaverton averages 1.6 inches of snow per year. Boulder averages 71.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Beaverton, Oregon
Summer High: the July high is around 80.3 degrees
Winter Low: the January low is 36.8
Rain: averages 40.7 inches of rain a year
Snow: averages 1.6 inches of snow a year

Boulder, Colorado
Summer High: the July high is around 88.1 degrees
Winter Low: the January low is 18.9
Rain: averages 18.1 inches of rain a year
Snow: averages 71.1 inches of snow a year

BestPlaces Comfort Index

Beaverton

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

7.6 / 10

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

Boulder

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

7.1 / 10

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

Average Monthly High / Low (°F)

Month	Boulder, CO	Beaverton, OR
January	47° / 19°	49° / 37°
February	48° / 20°	52° / 37°
March	55° / 27°	58° / 40°
April	62° / 34°	62° / 42°
May	72° / 43°	68° / 47°
June	82° / 51°	74° / 52°
July	88° / 57°	80° / 55°
August	86° / 55°	81° / 55°
September	78° / 46°	76° / 51°
October	66° / 36°	64° / 45°
November	54° / 26°	53° / 40°
December	45° / 18°	47° / 36°

Hot, Freezing, Rainy, Snowy Days: Boulder / Beaverton

Month	Hot Days	Freezing Days	Rainy Days	Snowy Days
January	0 / 0	28 / 7	5 / 19	5 / 0
February	0 / 0	25 / 6	5 / 16	5 / 0
March	0 / 0	23 / 3	7 / 18	6 / 0
April	0 / 0	13 / 1	9 / 16	4 / 0
May	1 / 1	2 / 0	11 / 13	1 / 0
June	6 / 1	0 / 0	9 / 9	0 / 0
July	14 / 4	0 / 0	9 / 4	0 / 0
August	9 / 4	0 / 0	10 / 4	0 / 0
September	3 / 1	1 / 0	7 / 6	0 / 0
October	0 / 0	10 / 1	6 / 12	2 / 0
November	0 / 0	22 / 3	5 / 20	4 / 0
December	0 / 0	28 / 9	5 / 19	5 / 0

July is the hottest month for Boulder with an average high temperature of 88.1°, which ranks it as about average compared to other places in Colorado. In Boulder, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Boulder are September, June and May.

August is the hottest month for Beaverton with an average high temperature of 81.1°, which ranks it as cooler than most places in Oregon. In Beaverton, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Beaverton are July, September and August.

December has the coldest nighttime temperatures for Boulder with an average of 18.3°. This is one of the warmest places in Colorado.

December has the coldest nighttime temperatures for Beaverton with an average of 35.8°. This is warmer than most places in Oregon.

In Boulder, there are 32.4 days annually when the high temperature is over 90°, which is about average compared to other places in Colorado.

In Beaverton, there are 11.6 days annually when the high temperature is over 90°, which is cooler than most places in Oregon.

In Boulder, there are 151.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Colorado.

In Beaverton, there are 28.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Oregon.

In Boulder, there are 5.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Colorado.

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

May is the wettest month in Boulder with 2.5 inches of rain, and the driest month is January with 0.6 inches. The wettest season is Summer with 37% of yearly precipitation and 11% occurs in Spring, which is the driest season. The annual rainfall of 18.1 inches in Boulder means that it is wetter than most places in Colorado.

November is the wettest month in Beaverton with 6.6 inches of rain, and the driest month is July with 0.7 inches. The wettest season is Spring with 41% of yearly precipitation and 8% occurs in Autumn, which is the driest season. The annual rainfall of 40.7 inches in Beaverton means that it is about average compared to other places in Oregon.

May is the rainiest month in Boulder with 10.5 days of rain, and January is the driest month with only 4.7 rainy days. There are 88.0 rainy days annually in Boulder, which is rainier than most places in Colorado. The rainiest season is Autumn when it rains 31% of the time and the driest is Spring with only a 17% chance of a rainy day.

November is the rainiest month in Beaverton with 20.0 days of rain, and August is the driest month with only 3.5 rainy days. There are 155.3 rainy days annually in Beaverton, which is rainier than most places in Oregon. The rainiest season is Spring when it rains 35% of the time and the driest is Autumn with only a 11% chance of a rainy day.

An annual snowfall of 71.1 inches in Boulder means that it is snowier than most places in Colorado.

An annual snowfall of 1.6 inches in Beaverton means that it is less snowy than most places in Oregon.

March is the snowiest month in Boulder with 14.3 inches of snow, and 9 months of the year have significant snowfall.

December is the snowiest month in Beaverton with 0.6 inches of snow, and 2 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 Boulder 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 Beaverton 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:
Boulder, CO vs Beaverton, OR

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Boulder / Beaverton

December has the coldest nighttime temperatures for Boulder with an average of 18.3°. This is one of the warmest places in Colorado.

December has the coldest nighttime temperatures for Beaverton with an average of 35.8°. This is warmer than most places in Oregon.

In Boulder, there are 32.4 days annually when the high temperature is over 90°, which is about average compared to other places in Colorado.

In Beaverton, there are 11.6 days annually when the high temperature is over 90°, which is cooler than most places in Oregon.

In Boulder, there are 151.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Colorado.

In Beaverton, there are 28.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Oregon.

In Boulder, there are 5.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Colorado.

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

An annual snowfall of 71.1 inches in Boulder means that it is snowier than most places in Colorado.

An annual snowfall of 1.6 inches in Beaverton means that it is less snowy than most places in Oregon.

March is the snowiest month in Boulder with 14.3 inches of snow, and 9 months of the year have significant snowfall.

December is the snowiest month in Beaverton with 0.6 inches of snow, and 2 months of the year have significant snowfall.

DID YOU KNOW?

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Reviews for Beaverton 2 Reviews

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2025 Compare Climate & Weather:Boulder, CO vs Beaverton, OR

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Boulder / Beaverton

December has the coldest nighttime temperatures for Boulder with an average of 18.3°. This is one of the warmest places in Colorado.December has the coldest nighttime temperatures for Beaverton with an average of 35.8°. This is warmer than most places in Oregon.

In Boulder, there are 32.4 days annually when the high temperature is over 90°, which is about average compared to other places in Colorado.In Beaverton, there are 11.6 days annually when the high temperature is over 90°, which is cooler than most places in Oregon.

In Boulder, there are 151.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Colorado.In Beaverton, there are 28.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Oregon.

In Boulder, there are 5.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Colorado.In Beaverton, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Oregon.

An annual snowfall of 71.1 inches in Boulder means that it is snowier than most places in Colorado.An annual snowfall of 1.6 inches in Beaverton means that it is less snowy than most places in Oregon.

March is the snowiest month in Boulder with 14.3 inches of snow, and 9 months of the year have significant snowfall.December is the snowiest month in Beaverton with 0.6 inches of snow, and 2 months of the year have significant snowfall.

DID YOU KNOW?

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Reviews for Beaverton 2 Reviews

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2025 Compare Climate & Weather:
Boulder, CO vs Beaverton, OR

December has the coldest nighttime temperatures for Boulder with an average of 18.3°. This is one of the warmest places in Colorado.

December has the coldest nighttime temperatures for Beaverton with an average of 35.8°. This is warmer than most places in Oregon.

In Boulder, there are 32.4 days annually when the high temperature is over 90°, which is about average compared to other places in Colorado.

In Beaverton, there are 11.6 days annually when the high temperature is over 90°, which is cooler than most places in Oregon.

In Boulder, there are 151.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Colorado.

In Beaverton, there are 28.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Oregon.

In Boulder, there are 5.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Colorado.

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

An annual snowfall of 71.1 inches in Boulder means that it is snowier than most places in Colorado.

An annual snowfall of 1.6 inches in Beaverton means that it is less snowy than most places in Oregon.

March is the snowiest month in Boulder with 14.3 inches of snow, and 9 months of the year have significant snowfall.

December is the snowiest month in Beaverton with 0.6 inches of snow, and 2 months of the year have significant snowfall.