The remote server returned an error: (503) Server Unavailable. Weather in San Mateo County, California

San Mateo County, California 

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Weather in San Mateo County, California

The most pleasant months of the year for San Mateo County are September, August and July. In San Mateo County, there are 5 comfortable months with high temperatures in the range of 70-85°. September is the hottest month for San Mateo County with an average high temperature of 75.1°, which ranks it as one of the coolest places in California. Any measurable snowfall is a rare occurance in San Mateo County. There are few days during the summer when the humidity becomes unpleasant.


Weather Highlights

Summer High: the July high is around 75 degrees
Winter Low: the January low is 42
Rain: averages 25 inches of rain a year
Snow: averages 0 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the San Mateo County area is 8.4 (10=best), which means it is more comfortable than most places in California.

8.4 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January58° 42°
February61° 44°
March63° 45°
April66° 46°
May69° 49°
June73° 52°
July75° 54°
August75° 55°
September75° 54°
October71° 50°
November64° 46°
December58° 42°
Hot, Freezing, Rainy, Snowy Days: San Mateo
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January02110
February01110
March00110
April0060
May1040
June2020
July2010
August2010
September2020
October1040
November0180
December03110

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.


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MAPS OF SAN MATEO COUNTY, CALIFORNIA
ZIP CODES IN SAN MATEO COUNTY, CALIFORNIA
94080, 94015, 94014, 94403, 94066, 94010, 94025, 94061, 94044, 94404, ... 29 more

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