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

Highlights

On average, there are 280 sunny days per year in Palmdale. Boulder averages 245 sunny days per year. The US average is 205 sunny days.

Palmdale, California gets 8.8 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.

Palmdale averages 0.2 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

Palmdale, California
Summer High: the July high is around 97.5 degrees
Winter Low: the January low is 32.8
Rain: averages 8.8 inches of rain a year
Snow: averages 0.2 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

The annual BestPlaces Comfort Index for Palmdale is 8.0 (10=best), which means it is less comfortable than most places in California.

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

Today's Weather - Boulder, CO

50°F

Today's Weather - Palmdale, CA

67°F

Average Monthly High / Low (°F)

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

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 Palmdale with an average high temperature of 97.5°, which ranks it as warmer than most places in California. In Palmdale, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Palmdale are October, April 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 Palmdale with an average of 32.0°. This is colder 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 Palmdale, there are 106.9 days annually when the high temperature is over 90°, which is one of the hottest 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 Palmdale, there are 48.4 days annually when the nighttime low temperature falls below freezing, which is colder than most 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 Palmdale, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other 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.


February is the wettest month in Palmdale with 1.9 inches of rain, and the driest month is June with 0.1 inches. The wettest season is Spring with 56% of yearly precipitation and 3% occurs in Autumn, which is the driest season. The annual rainfall of 8.8 inches in Palmdale means that it is one of the driest 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.

February is the rainiest month in Palmdale with 5.4 days of rain, and June is the driest month with only 0.3 rainy days. There are 29.1 rainy days annually in Palmdale, which is one of the least rainy places in California. The rainiest season is Spring when it rains 51% of the time and the driest is Autumn with only a 4% 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 0.2 inches in Palmdale means that it is snowier than most 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 Palmdale with 0.2 inches of snow, and no months of the year have significant snowfall.