2025 Compare Climate & Weather:
Kalama, WA vs Gilroy, CA

Highlights

On average, there are 261 sunny days per year in Gilroy. Kalama averages 139 sunny days per year. The US average is 205 sunny days.

Gilroy, California gets 21.4 inches of rain, on average, per year. Kalama, Washington gets 54.7 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Gilroy averages 0 inches of snow per year. Kalama averages 7.7 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Gilroy, California
Summer High: the July high is around 83.4 degrees
Winter Low: the January low is 39.6
Rain: averages 21.4 inches of rain a year
Snow: averages 0 inches of snow a year

Kalama, Washington
Summer High: the July high is around 77.9 degrees
Winter Low: the January low is 32.5
Rain: averages 54.7 inches of rain a year
Snow: averages 7.7 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Gilroy is 8.6 (10=best), which means it is more comfortable than most places in California.

The annual BestPlaces Comfort Index for Kalama is 7.0 (10=best), which means it is less comfortable than most places in Washington.

Today's Weather - Kalama, WA

42°F

Today's Weather - Gilroy, CA

52°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Kalama / Gilroy

August is the hottest month for Kalama with an average high temperature of 78.9°, which ranks it as about average compared to other places in Washington. In Kalama, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Kalama are July, August and September.

July is the hottest month for Gilroy with an average high temperature of 83.4°, which ranks it as cooler than most places in California. In Gilroy, there are 7 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Gilroy are October, June and May.

December has the coldest nighttime temperatures for Kalama with an average of 32.0°. This is colder than most places in Washington.

January has the coldest nighttime temperatures for Gilroy with an average of 39.6°. This is warmer than most places in California.

In Kalama, there are 9.8 days annually when the high temperature is over 90°, which is hotter than most places in Washington.

In Gilroy, there are 29.3 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Kalama, there are 63.7 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Washington.

In Gilroy, there are 10.3 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

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

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

November is the wettest month in Kalama with 8.7 inches of rain, and the driest month is July with 0.7 inches. The wettest season is Spring with 41% of yearly precipitation and 7% occurs in Autumn, which is the driest season. The annual rainfall of 54.7 inches in Kalama means that it is wetter than most places in Washington.


February is the wettest month in Gilroy with 4.3 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 59% of yearly precipitation and 0% occurs in Autumn, which is the driest season. The annual rainfall of 21.4 inches in Gilroy means that it is wetter than most places in California.

November is the rainiest month in Kalama with 21.0 days of rain, and August is the driest month with only 4.7 rainy days. There are 173.6 rainy days annually in Kalama, which is rainier than most places in Washington. The rainiest season is Spring when it rains 33% of the time and the driest is Autumn with only a 12% chance of a rainy day.

January is the rainiest month in Gilroy with 10.1 days of rain, and July is the driest month with only 0.2 rainy days. There are 58.6 rainy days annually in Gilroy, which is about average compared to other places in California. The rainiest season is Spring when it rains 49% of the time and the driest is Autumn with only a 2% chance of a rainy day.

An annual snowfall of 7.7 inches in Kalama means that it is snowier than most places in Washington.

There is rarely any recorded snowfall in Gilroy, ranking it as one of the least snowy places in California.

January is the snowiest month in Kalama with 2.7 inches of snow, and 4 months of the year have significant snowfall.

Any measurable snowfall is a rare occurance in Gilroy.