2025 Compare Climate & Weather:
Boulder, CO vs Mount Shasta, CA

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Highlights

On average, there are 229 sunny days per year in Mount Shasta. Boulder averages 245 sunny days per year. The US average is 205 sunny days.

Mount Shasta, California gets 40.6 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.

Mount Shasta averages 59.3 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

Mount Shasta, California
Summer High: the July high is around 87 degrees
Winter Low: the January low is 25.8
Rain: averages 40.6 inches of rain a year
Snow: averages 59.3 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

Mount Shasta

The annual BestPlaces Comfort Index for Mount Shasta is 7.0 (10=best), which means it is one of the least comfortable places in California.

7 / 10

June, September and August are the most pleasant months in Mount Shasta, 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.

Today's Weather - Boulder, CO

5 AM PST

Sunny

38°F

DAY	DESCRIPTION	HIGH / LOW	WIND
Today	Sunny	64° / 41°	ESE 5 mph
Saturday	Sunny	74° / 46°	S 1 to 7 mph
Sunday	Mostly Sunny then Slight Chance Showers And Thunderstorms	75° / 47°	E 1 to 10 mph
Monday	Showers And Thunderstorms	64° / 43°	E 1 to 8 mph
Tuesday	Rain Showers	49° / 40°	NNE 3 to 7 mph
Wednesday	Showers And Thunderstorms Likely	57° / 41°	NNE 5 mph
Thursday	Partly Sunny then Chance Showers And Thunderstorms	66° / 44°	NNE 3 mph

Today's Weather - Mount Shasta, CA

5 AM PST

Clear

47°F

DAY	DESCRIPTION	HIGH / LOW	WIND
Overnight	Clear	46° / 76°	S 1 mph
Friday Night	Showers And Thunderstorms Likely	43° / 54°	NW 7 mph
Saturday Night	Partly Cloudy	35° / 62°	NNW 7 to 10 mph
Sunday Night	Clear	36° / 71°	N 6 to 10 mph
Monday Night	Clear	41° / 78°	N 2 to 8 mph
Tuesday Night	Clear	46° / 78°	NW 0 to 3 mph
Wednesday Night	Mostly Clear	47° / 76°	WNW 1 to 6 mph

Average Monthly High / Low (°F)

Month	Boulder, CO	Mount Shasta, CA
January	47° / 19°	46° / 26°
February	48° / 20°	50° / 27°
March	55° / 27°	55° / 30°
April	62° / 34°	62° / 33°
May	72° / 43°	70° / 39°
June	82° / 51°	78° / 45°
July	88° / 57°	87° / 50°
August	86° / 55°	86° / 48°
September	78° / 46°	80° / 42°
October	66° / 36°	68° / 36°
November	54° / 26°	52° / 29°
December	45° / 18°	45° / 26°

Hot, Freezing, Rainy, Snowy Days: Boulder / Mount Shasta

Month	Hot Days	Freezing Days	Rainy Days	Snowy Days
January	0 / 0	28 / 25	5 / 13	5 / 5
February	0 / 0	25 / 21	5 / 12	5 / 4
March	0 / 0	23 / 21	7 / 12	6 / 3
April	0 / 0	13 / 14	9 / 10	4 / 2
May	1 / 1	2 / 5	11 / 8	1 / 0
June	6 / 3	0 / 0	9 / 5	0 / 0
July	14 / 11	0 / 0	9 / 2	0 / 0
August	9 / 10	0 / 0	10 / 2	0 / 0
September	3 / 4	1 / 1	7 / 3	0 / 0
October	0 / 0	10 / 9	6 / 6	2 / 0
November	0 / 0	22 / 21	5 / 11	4 / 2
December	0 / 0	28 / 25	5 / 13	5 / 5

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.

July is the hottest month for Mount Shasta with an average high temperature of 87.0°, which ranks it as cooler than most places in California. In Mount Shasta, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Mount Shasta are June, September and May.

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 Mount Shasta with an average of 25.6°. This is one of the coldest places in California.

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 Mount Shasta, there are 28.2 days annually when the high temperature is over 90°, which is cooler than most places in California.

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 Mount Shasta, there are 141.3 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in California.

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 Mount Shasta, there are 0.1 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in California.

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.

December is the wettest month in Mount Shasta with 7.2 inches of rain, and the driest month is July with 0.3 inches. The wettest season is Spring with 51% of yearly precipitation and 4% occurs in Autumn, which is the driest season. The annual rainfall of 40.6 inches in Mount Shasta means that it is wetter than most places in California.

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.

December is the rainiest month in Mount Shasta with 13.1 days of rain, and August is the driest month with only 1.7 rainy days. There are 96.0 rainy days annually in Mount Shasta, which is one of the rainiest places in California. The rainiest season is Spring when it rains 39% of the time and the driest is Autumn with only a 8% 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 59.3 inches in Mount Shasta means that it is one of the snowiest places in California.

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 Mount Shasta with 17.1 inches of snow, and 6 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 Mount Shasta 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 Mount Shasta, CA

Highlights

Weather Highlights

BestPlaces Comfort Index

Today's Weather - Boulder, CO

Today's Weather - Mount Shasta, CA

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Boulder / Mount Shasta

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 Mount Shasta with an average of 25.6°. This is one of the coldest places in California.

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 Mount Shasta, there are 28.2 days annually when the high temperature is over 90°, which is cooler than most places in California.

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 Mount Shasta, there are 141.3 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in California.

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 Mount Shasta, there are 0.1 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in California.

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

An annual snowfall of 59.3 inches in Mount Shasta means that it is one of the snowiest places in California.

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 Mount Shasta with 17.1 inches of snow, and 6 months of the year have significant snowfall.

DID YOU KNOW?

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Reviews for Mount Shasta 2 Reviews

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2025 Compare Climate & Weather:Boulder, CO vs Mount Shasta, CA

Highlights

Weather Highlights

BestPlaces Comfort Index

Today's Weather - Boulder, CO

Today's Weather - Mount Shasta, CA

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Boulder / Mount Shasta

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 Mount Shasta with an average of 25.6°. This is one of the coldest places in California.

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 Mount Shasta, there are 28.2 days annually when the high temperature is over 90°, which is cooler than most places in California.

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 Mount Shasta, there are 141.3 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in California.

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 Mount Shasta, there are 0.1 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in California.

An annual snowfall of 71.1 inches in Boulder means that it is snowier than most places in Colorado.An annual snowfall of 59.3 inches in Mount Shasta means that it is one of the snowiest places in California.

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 Mount Shasta with 17.1 inches of snow, and 6 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Boulder 2 Reviews

Reviews for Mount Shasta 2 Reviews

Most Recent Searches On Compare Climate & Weather

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Zips In Boulder, Colorado

Zips In MOUNT SHASTA, CALIFORNIA

Learn More About BOULDER, COLORADO

Learn More About Mount Shasta, California

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2025 Compare Climate & Weather:
Boulder, CO vs Mount Shasta, CA

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 Mount Shasta with an average of 25.6°. This is one of the coldest places in California.

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 Mount Shasta, there are 28.2 days annually when the high temperature is over 90°, which is cooler than most places in California.

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 Mount Shasta, there are 141.3 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in California.

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 Mount Shasta, there are 0.1 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in California.

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

An annual snowfall of 59.3 inches in Mount Shasta means that it is one of the snowiest places in California.

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 Mount Shasta with 17.1 inches of snow, and 6 months of the year have significant snowfall.