UPPER LAKE, CALIFORNIA

Average Temperature

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		56.9		43.8		46.5		49.6		54.1		59.1		66.2		72.5		71.4		66.4		58.5		50		44.3

Average High Temperature

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		72.8		54.6		58.3		62.7		68.8		74.7		84.1		93		92.6		87.2		76.7		64.4		55.9

Average Low Temperature

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		41		32.9		34.7		36.6		39.5		43.4		48.3		52		50.2		45.9		40.3		35.6		32.6

Highest Recorded Temperature

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		111		85		97		90		93		102		109		111		109		110		104		94		80

Lowest Recorded Temperature

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		9		9		13		19		24		28		30		32		33		27		17		16		10

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
in		34.1		7.3		5.3		4.5		2.3		1.1		0.4		---		0.1		0.3		1.8		4.2		6.9

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
in		21.3		21.3		14.3		10.6		8.2		4.6		2.5		0.8		1.8		3.8		8.2		12.5		20.4

Least Reported Precipitation in a Month

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		---		1.4		0.2		0.6		---		---		---		---		---		---		---		---		0.6

Most Precipitation Reported in a Day

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		5.3		4.3		4		2.6		2.2		1.7		4.4		0.5		1.2		2.5		2.6		2.5		5.3

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
in		2		0.9		0.3		0.2		---		---		---		---		---		---		---		0.2		0.4

Most Snow Reported in a Month

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		16		16		3.4		4		---		---		---		---		---		---		---		6		5.6

Heating Degree Days

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1439		350		243		189		89		31		3		---		---		2		35		164		333

Cooling Degree Days

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		676		---		---		---		2		21		99		240		206		95		13		---		---

Growing Degree Days

Years on Record: 114

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3007.5		---		---		---		123		282.1		486		697.5		663.4		492		263.5		---		---

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
kWh/m2		4.9		2.1		3		4.4		5.8		6.9		7.8		7.9		7		5.6		4		2.5		1.9

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.3		0.8		1		1.4		1.7		1.9		1.8		1.6		1.5		1.2		1		0.8		0.7

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.5		3.5		4.2		5.4		5.9		6.3		6.7		7		6.9		6.6		5.7		4		3.3

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6.5		3.7		4.5		5.8		6.6		7.8		9.1		9.6		8.8		7.8		6.3		4.3		3.6

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.9		2.1		3		4.4		5.8		6.9		7.8		7.9		7		5.6		4		2.5		1.9

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.5		0.8		1.2		1.6		2		2.4		2.1		1.9		1.8		1.5		1.2		0.9		0.8

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6.4		4.6		5.8		6.9		6.7		7.1		7.3		7.3		7.5		7.2		6.3		5		4.7

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		8.1		5.3		7.1		8.3		8.2		9.7		10.6		10.5		10.3		9		7.3		5.9		5.5

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.1		1.4		2.1		3.5		4.4		5.3		7.1		7.4		6.4		4.9		3.4		1.8		1.5

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.1		0.7		0.8		1		1.5		1.6		1.5		1.5		1.2		1		0.9		0.7		0.6

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.3		2		2.6		4.1		4.4		4.8		6.2		6.5		6.2		5.5		4.6		2.6		2.3

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.5		1.7		2.2		3.7		3.9		4.5		7.6		8.4		7.3		5.9		4.7		2.4		2.2