GRASS VALLEY, CALIFORNIA

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Elevation: 2628 feet Latitude: 39 16N Longitude: 121 02W

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MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

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TEMPERATURE

Average Temperature

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		53.9		40.5		42.5		45.2		50		56.7		64		70.5		69.3		64.2		56		46.7		41.2

Average High Temperature

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		67.8		50.7		53.3		56.8		63.2		71		79.9		88.4		87.4		81.5		71		58.8		51.4

Average Low Temperature

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		40		30.3		31.7		33.7		36.8		42.4		48.1		52.6		51.2		46.9		41		34.7		30.9

Highest Recorded Temperature

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		111		79		86		83		94		101		104		106		111		105		98		90		81

Lowest Recorded Temperature

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		-1		-1		5		12		20		21		28		35		34		27		20		13		-1

Average Number of Days Above 90F/32C

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		39		---		---		---		---		0.7		4.5		14.3		13		5.6		0.8		---		---

Average Number of Days Below 32F/0C

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		96.6		20		16		14.5		7.8		2		0.2		---		---		0.5		3.5		12.7		19.3

Average Number of Days Below 0F/-17C

Years on Record: 118

ANNUAL

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PRECIPITATION

Average Precipitation

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		54.2		10.3		9.4		7.9		4.3		2.2		0.6		---		0.1		0.8		2.8		6.2		9.4

Average Number of Days With Precipitation

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		81		13		12		12		8		6		2		---		1		2		5		9		11

Most Reported Precipitation in a Month

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		36		36		32.9		26.1		15		10.8		3.4		1		2.4		6.4		21		26.1		35.3

Least Reported Precipitation in a Month

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		---		0.4		0.2		0.1		0.2		---		---		---		---		---		---		---		---

Most Precipitation Reported in a Day

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		7.8		7.8		7.5		5.6		3.9		3.5		1.8		0.7		1.7		2.8		7.1		7.2		6.8

Avg. No. of Days w/Precip. Above 0.2in/5mm

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		61		10		10		9		6		4		1		---		---		1		4		7		9

Avg. # of Days w/Precip. Above 0.4in/10mm

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		35		6		6		5		3		2		---		---		---		1		2		4		6

Avg. No. of Days w/Precip. Above 1in/25mm

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		18		4		3		3		1		1		---		---		---		---		1		2		3

PRECIPITATION - SNOW

Average Snowfall

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		24.8		8.1		5.8		5.6		0.9		0.1		---		---		---		---		---		0.7		3.6

Average Snow Cover

Years on Record: 85

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		---		1		1		---		---		---		---		---		---		---		---		---		---

Most Snow Reported in a Month

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		68		68		42.3		36.2		12		3		---		---		---		---		2		14		28

DEGREE DAYS

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4565		741		616		606		454		276		94		22		31		110		300		570		745

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		689		---		---		---		8		28		86		201		193		117		53		3		---

Growing Degree Days

Years on Record: 118

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2473.5		---		---		---		---		207.7		420		635.5		598.3		426		186		---		---

NEARBY - MAP

NEARBY - LIST

Nevada City, California (2 mi / 4 km)
Cedar Ridge, California (3 mi / 6 km)
Boston Ravine, California (4 mi / 7 km)
North San Juan, California (8 mi / 14 km)
French Corral, California (10 mi / 16 km)

GEOBA.SE

Grass Valley, California

WEATHER FORECAST