SAN MATEO, CALIFORNIA

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Elevation: 0 meters Latitude: 37 37N Longitude: 122 23W

WEATHER

Monthly - Summary

CURRENT CONDITIONS

Sunrise/Set

09:20 am

10:54 pm
Local Time
12:34 am EDT
25 April, 2024

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MONTHLY - WEATHER AVERAGES SUMMARY [ Show All Data ]

[ °F ] °C

Average Temperature

Years on Record: 63

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		14.1		9.5		11.2		12.1		13.2		14.7		16.3		17.1		17.6		17.9		16.2		12.9		9.9

Average High Temperature

Years on Record: 63

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		18.5		13.2		15.1		16.2		17.7		19.3		21.1		21.9		22.3		23.1		21.2		17.2		13.6

Average Low Temperature

Years on Record: 63

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		9.6		5.8		7.2		7.9		8.7		10.2		11.5		12.3		12.8		12.7		11.1		8.6		6.3

Average Precipitation

Years on Record: 63

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		509		112		92		71		35		10		3		---		1		5		25		59		96

Average Number of Days With Precipitation

Years on Record: 63

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		64		11		10		10		6		3		1		---		1		1		3		8		10

Highest Recorded Temperature

Years on Record: 85

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		41.1		22.2		25.6		29.4		33.3		36.1		41.1		40.6		37.8		39.4		37.2		29.4		23.9

Lowest Recorded Temperature

Years on Record: 85

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-6.7		-4.4		-3.9		-1.1		-0.6		2.2		5		6.1		5.6		3.3		1.1		-3.9		-6.7

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.6		10.4		11.3		12.4		13.7		14.7		15.2		14.9		14		12.8		11.6		10.6		10.1

Average Number of Days Above 90F/32C

Years on Record: 63

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3.9		---		---		---		0.1		0.4		0.8		0.5		0.3		1.4		0.3		---		---

Average Number of Days Below 32F/0C

Years on Record: 63

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2		1		0.2		---		---		---		---		---		---		---		---		---		0.7

Average Number of Rainy Days

Years on Record: 66

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		62		11		10		10		6		3		1		---		---		1		4		7		10

Most Rain Reported in a Month

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		970		280		240		220		160		90		20		---		10		50		180		200		310

Average Relative Humidity

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		75.6		81.3		79.8		75.5		72.6		73		71.9		75.8		76		74.2		72		76		79.2

Average Morning Relative Humidity

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		82		87		86		82		79		78		77		81		83		82		83		85		86

Average Evening Relative Humidity

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		63		68		66		64		62		61		60		61		62		60		60		63		68

Average Dew Point

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		8		5		6		6		7		8		10		11		11		11		10		7		5

NEARBY - MAP

NEARBY - LIST

Millbrae, California (0 mi / 1 km)
Burlingame, California (2 mi / 4 km)
Foster City, California (5 mi / 8 km)
Pacifica, California (5 mi / 9 km)
Half Moon Bay, California (10 mi / 17 km)

GEOBA.SE

San Mateo, California