2025 Compare Climate & Weather:
Chico, CA vs Boulder, CO

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Highlights

On average, there are 245 sunny days per year in Boulder. Chico averages 249 sunny days per year. The US average is 205 sunny days.

Boulder, Colorado gets 18.1 inches of rain, on average, per year. Chico, California gets 27.8 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Boulder averages 71.1 inches of snow per year. Chico averages 0.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

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

Chico, California
Summer High: the July high is around 94.4 degrees
Winter Low: the January low is 36.9
Rain: averages 27.8 inches of rain a year
Snow: averages 0.1 inches of snow a year

BestPlaces Comfort Index
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.

Chico

The annual BestPlaces Comfort Index for Chico is 8.1 (10=best), which means it is about average compared to other places in California.

8.1 / 10
May, October and April are the most pleasant months in Chico, while January and December are the least comfortable months.

Today's Weather - Chico, CA

10 AM PST

Sunny

66°F

DAYDESCRIPTIONHIGH / LOWWIND
TodaySunny78° / 54°WNW 3 to 7 mph
ThursdaySunny84° / 59°WNW 2 to 6 mph
FridaySunny86° / 58°NW 3 to 7 mph
SaturdaySlight Chance Rain Showers76° / 54°S 2 to 10 mph
SundaySunny79° / 55°NNW 10 to 17 mph
MondaySunny88° / 61°NNW 9 to 14 mph
TuesdaySunny92° / 62°NW 7 to 10 mph
Today's Weather - Boulder, CO

10 AM PST

Partly Sunny then Chance Showers And Thunderstorms

68°F

DAYDESCRIPTIONHIGH / LOWWIND
TodayPartly Sunny then Chance Showers And Thunderstorms73° / 43°NE 5 to 29 mph
ThursdayMostly Sunny then Slight Chance Showers And Thunderstorms70° / 44°W 21 to 32 mph
FridayMostly Sunny then Slight Chance Showers And Thunderstorms71° / 45°WNW 2 to 9 mph
SaturdayPartly Sunny then Chance Showers And Thunderstorms72° / 46°SSE 2 to 6 mph
SundayShowers And Thunderstorms Likely70° / 45°SSE 2 to 9 mph
MondayShowers And Thunderstorms Likely65° / 43°WNW 2 to 10 mph
TuesdaySlight Chance Rain Showers then Chance Showers And Thunderstorms64° / 43°WNW 3 to 9 mph
Average Monthly High / Low (°F)
MonthChico, CABoulder, CO
January55° / 37°47° / 19°
February61° / 40°48° / 20°
March66° / 43°55° / 27°
April72° / 46°62° / 34°
May81° / 53°72° / 43°
June89° / 59°82° / 51°
July94° / 62°88° / 57°
August93° / 60°86° / 55°
September89° / 56°78° / 46°
October79° / 49°66° / 36°
November64° / 42°54° / 26°
December55° / 37°45° / 18°
Hot, Freezing, Rainy, Snowy Days: Chico / Boulder
MonthHot DaysFreezing DaysRainy DaysSnowy Days
January0 / 08 / 2812 / 50 / 5
February0 / 03 / 2510 / 50 / 5
March0 / 01 / 239 / 70 / 6
April1 / 00 / 136 / 90 / 4
May6 / 10 / 24 / 110 / 1
June14 / 60 / 02 / 90 / 0
July24 / 140 / 00 / 90 / 0
August22 / 90 / 00 / 100 / 0
September14 / 30 / 11 / 70 / 0
October3 / 00 / 103 / 60 / 2
November0 / 02 / 228 / 50 / 4
December0 / 08 / 2810 / 50 / 5
July is the hottest month for Chico with an average high temperature of 94.4°, which ranks it as warmer than most places in California. In Chico, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Chico are October, May and April.

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.
December has the coldest nighttime temperatures for Chico with an average of 36.8°. This is colder than most places in California.

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

In Chico, there are 82.9 days annually when the high temperature is over 90°, which is hotter than most 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 Chico, there are 21.7 days annually when the nighttime low temperature falls below freezing, which is colder 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 Chico, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other 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.

January is the wettest month in Chico with 5.5 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 53% of yearly precipitation and 2% occurs in Autumn, which is the driest season. The annual rainfall of 27.8 inches in Chico means that it is wetter than most 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.

January is the rainiest month in Chico with 11.9 days of rain, and July is the driest month with only 0.1 rainy days. There are 65.0 rainy days annually in Chico, which is rainier than most places in California. The rainiest season is Spring when it rains 48% of the time and the driest is Autumn with only a 3% chance of a rainy day.

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.

An annual snowfall of 0.1 inches in Chico means that it is snowier than most places in California.

An annual snowfall of 71.1 inches in Boulder means that it is snowier than most places in Colorado.
December is the snowiest month in Chico with 0.1 inches of snow, and no months of the year have significant snowfall.

March is the snowiest month in Boulder with 14.3 inches of snow, and 9 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 Chico    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 Chico

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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

Start Your Review of Boulder

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Zips In Chico, California
95926, 95928, 95973
Zips In BOULDER, COLORADO
80302, 80304, 80301, 80303, 80305, 80310
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