UPPER LAKE, CALIFORNIA

Average Temperature

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		13.8		6.6		8.1		9.8		12.3		15.1		19		22.5		21.9		19.1		14.7		10		6.8

Average High Temperature

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		22.7		12.6		14.6		17.1		20.4		23.7		28.9		33.9		33.7		30.7		24.8		18		13.3

Average Low Temperature

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		5		0.5		1.5		2.6		4.2		6.3		9.1		11.1		10.1		7.7		4.6		2		0.3

Highest Recorded Temperature

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		43.9		29.4		36.1		32.2		33.9		38.9		42.8		43.9		42.8		43.3		40		34.4		26.7

Lowest Recorded Temperature

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-12.8		-12.8		-10.6		-7.2		-4.4		-2.2		-1.1		---		0.6		-2.8		-8.3		-8.9		-12.2

Average Number of Days Above 90F/32C

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		71.1		---		---		---		0.2		2		9.3		22.1		21.5		13.3		2.8		---		---

Average Number of Days Below 32F/0C

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		70.5		15.7		11.5		8.5		3.1		0.7		0.1		---		---		0.1		3		11.1		16.6

Average Precipitation

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		866		187		134		113		57		28		9		1		2		8		45		106		174

Average Number of Days With Precipitation

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		68		13		10		10		6		4		2		---		---		1		4		8		10

Most Reported Precipitation in a Month

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		542		542		365		270		208		117		62		21		45		97		208		317		517

Least Reported Precipitation in a Month

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		---		34		5		15		---		---		---		---		---		---		---		---		14

Most Precipitation Reported in a Day

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		135.9		108.7		101.6		65		57.1		42.9		112.3		11.7		31.8		64.8		67.3		64.3		135.9

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

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		52		10		8		8		4		3		1		---		---		1		3		6		8

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

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		23		5		4		3		2		1		---		---		---		---		1		3		4

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

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		10		3		2		1		1		---		---		---		---		---		---		1		2

Average Snowfall

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		5.1		2.3		0.8		0.5		---		---		---		---		---		---		---		0.5		1

Most Snow Reported in a Month

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		40.6		40.6		8.6		10.2		---		---		---		---		---		---		---		15.2		14.2

Heating Degree Days

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		799.4		194.4		135		105		49.4		17.2		1.7		---		---		1.1		19.4		91.1		185

Cooling Degree Days

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		375.6		---		---		---		1.1		11.7		55		133.3		114.4		52.8		7.2		---		---

Growing Degree Days

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1670.8		---		---		---		68.3		156.7		270		387.5		368.6		273.3		146.4		---		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.7		10.3		11.2		12.5		13.8		14.9		15.4		15.1		14.1		12.8		11.6		10.5		10

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.7		7.6		10.9		16		20.7		24.9		28.1		28.4		25.1		20.2		14.3		8.9		6.9

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		4.6		2.8		3.7		5		6.3		6.9		6.6		5.9		5.3		4.4		3.6		3		2.5

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.6		12.4		15.2		19.4		21.4		22.8		24.2		25.1		24.8		23.6		20.3		14.2		12

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		23.3		13.1		16.3		20.8		23.7		27.9		32.8		34.5		31.7		28.1		22.8		15.4		12.8

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.7		7.6		10.9		16		20.7		24.9		28.1		28.4		25.1		20.2		14.3		8.9		6.9

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.4		3		4.1		5.7		7.3		8.5		7.7		6.8		6.3		5.5		4.3		3.3		2.7

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		22.9		16.5		20.9		24.7		24.3		25.6		26.1		26.2		27		25.8		22.6		18.1		16.9

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		29.2		18.9		25.4		29.7		29.6		34.8		38.2		37.6		37		32.3		26.3		21.2		19.7

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.7		5.1		7.5		12.7		15.7		18.9		25.6		26.5		22.9		17.5		12.2		6.6		5.3

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		3.8		2.4		2.7		3.6		5.3		5.6		5.5		5.2		4.1		3.6		3.1		2.5		2

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.5		7.1		9.2		14.7		15.8		17.3		22.2		23.4		22.4		19.8		16.4		9.4		8.3

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.3		6		7.7		13.3		13.9		16.1		27.3		30.1		26.4		21.3		16.8		8.7		7.7