2025 Compare Climate & Weather:
Grass Valley, CA vs Reno, NV

Highlights

On average, there are 252 sunny days per year in Reno. Grass Valley averages 243 sunny days per year. The US average is 205 sunny days.

Reno, Nevada gets 8.9 inches of rain, on average, per year. Grass Valley, California gets 55 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Reno averages 21.9 inches of snow per year. Grass Valley averages 11.3 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Reno, Nevada
Summer High: the July high is around 90.6 degrees
Winter Low: the January low is 23.7
Rain: averages 8.9 inches of rain a year
Snow: averages 21.9 inches of snow a year

Grass Valley, California
Summer High: the July high is around 87.2 degrees
Winter Low: the January low is 34.2
Rain: averages 55 inches of rain a year
Snow: averages 11.3 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Reno is 7.5 (10=best), which means it is more comfortable than most places in Nevada.

The annual BestPlaces Comfort Index for Grass Valley is 7.9 (10=best), which means it is less comfortable than most places in California.

Today's Weather - Grass Valley, CA

64°F

Today's Weather - Reno, NV

65°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Grass Valley / Reno

July is the hottest month for Grass Valley with an average high temperature of 87.2°, which ranks it as about average compared to other places in California. In Grass Valley, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Grass Valley are June, September and May.

July is the hottest month for Reno with an average high temperature of 90.6°, which ranks it as cooler than most places in Nevada. In Reno, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Reno are September, June and May.

December has the coldest nighttime temperatures for Grass Valley with an average of 34.0°. This is colder than most places in California.

December has the coldest nighttime temperatures for Reno with an average of 23.6°. This is warmer than most places in Nevada.

In Grass Valley, there are 28.3 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Reno, there are 41.8 days annually when the high temperature is over 90°, which is cooler than most places in Nevada.

In Grass Valley, there are 45.7 days annually when the nighttime low temperature falls below freezing, which is colder than most places in California.

In Reno, there are 130.0 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Nevada.

In Grass Valley, 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 Reno, there are 0.9 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Nevada.

December is the wettest month in Grass Valley with 10.4 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 55.0 inches in Grass Valley means that it is one of the wettest places in California.


December is the wettest month in Reno with 1.3 inches of rain, and the driest month is July with 0.2 inches. The wettest season is Spring with 42% of yearly precipitation and 11% occurs in Autumn, which is the driest season. The annual rainfall of 8.9 inches in Reno means that it is about average compared to other places in Nevada.

January is the rainiest month in Grass Valley with 12.7 days of rain, and July is the driest month with only 0.3 rainy days. There are 83.8 rainy days annually in Grass Valley, which is one of the rainiest places in California. The rainiest season is Spring when it rains 44% of the time and the driest is Autumn with only a 4% chance of a rainy day.

February is the rainiest month in Reno with 6.9 days of rain, and July is the driest month with only 1.8 rainy days. There are 51.2 rainy days annually in Reno, which is rainier than most places in Nevada. The rainiest season is Spring when it rains 39% of the time and the driest is Autumn with only a 13% chance of a rainy day.

An annual snowfall of 11.3 inches in Grass Valley means that it is snowier than most places in California.

An annual snowfall of 21.9 inches in Reno means that it is snowier than most places in Nevada.

February is the snowiest month in Grass Valley with 3.7 inches of snow, and 6 months of the year have significant snowfall.

December is the snowiest month in Reno with 6.0 inches of snow, and 6 months of the year have significant snowfall.