Santa Rosa-Petaluma Metro Area, CA Climate

Santa Rosa, CA Metro Area has a Mediterranean climate with warm and dry summers and mild, wet winters. Average temperatures range from the low-40s in the winter to the high-80s during the summer. Rainfall is heaviest in December and January, while July and August are typically the driest months. The area experiences very little snowfall, but occasional thunderstorms occur throughout spring and summer months. Overall, Santa Rosa enjoys moderate weather year-round, making it ideal for outdoor activities like hiking and camping.

Santa Rosa-Petaluma Metro Area, California gets 40 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Santa Rosa-Petaluma Metro Area averages 0 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 285 sunny days per year in Santa Rosa-Petaluma Metro Area. The US average is 205 sunny days.

Santa Rosa-Petaluma Metro Area gets some kind of precipitation, on average, 75 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 83 degrees
Winter Low: the January low is 39
Rain: averages 40 inches of rain a year
Snow: averages 0 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the Santa Rosa metro area is 8.3 (10=best), which means it is more comfortable than most places in California.

9.2 Summer - 7.1 Winter

June, September and July are the most pleasant months in the Santa Rosa metro area, while January and December are the least comfortable months.

Climate	Santa Rosa-Petaluma, California	United States
	39.6 in.	38.1 in.
	0.0 in.	27.8 in.
	75.0 days	106.2 days
	285 days	205 days
	83.1°	85.8°
	38.5°	21.7°
	8.3	7
	4.9	4.3
	710 ft.	2443 ft.

Climate

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

August is the hottest month for the Santa Rosa metro area with an average high temperature of 83.2°, which ranks it as cooler than most places in California. In the Santa Rosa metro area, there are 6 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the Santa Rosa metro area are October, June and May.

In the Santa Rosa metro area, there are 31.5 days annually when the high temperature is over 90°, which is cooler than most places in California.

December has the coldest nighttime temperatures for the Santa Rosa metro area with an average of 38.0°. This is about average compared to other places in California.

In the Santa Rosa metro area, there are 19.0 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in California.

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

Humidity in the Santa Rosa metro area is generally quite low and comfortable. There are few days during the summer when the humidity becomes unpleasant. The most humid months (but still comfortable) are August, July and June.

December is the wettest month in the Santa Rosa metro area with 7.8 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 57% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 39.6 inches in the Santa Rosa metro area means that it is wetter than most places in California.

January is the rainiest month in the Santa Rosa metro area with 12.6 days of rain, and July is the driest month with only 0.2 rainy days. There are 75.0 rainy days annually in the Santa Rosa metro area, 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 2% chance of a rainy day.

There is rarely any recorded snowfall in the Santa Rosa metro area, ranking it as one of the least snowy places in California. Any measurable snowfall is a rare occurance in the Santa Rosa metro area.

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Tiffy · Santa Rosa, CA

It's Gonna Burn

Over 3 years ago

It was okay until it fires started burning every year for the last three years and you electricity? is shut off for days at a time. For 4-6 months out of the year you More

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