SIX RIVERS NATIONAL FOREST, CALIFORNIA

Average Temperature

Years on Record: 36

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		56.8		43.2		47.5		50.1		53.2		59.5		66.3		71.8		71.3		67.2		58.5		49.2		43.9

Average High Temperature

Years on Record: 36

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		69.5		50.6		56.5		60.8		66		74.2		82.3		90.1		89.4		84.8		71.9		57.1		50.5

Average Low Temperature

Years on Record: 36

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		44.1		35.9		38.4		39.3		40.5		44.7		50.3		53.6		53.4		49.5		45.1		41.3		37.3

Highest Recorded Temperature

Years on Record: 36

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		113		71		74		83		95		103		108		113		111		105		96		74		69

Lowest Recorded Temperature

Years on Record: 36

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		7		12		19		26		28		30		34		41		40		36		26		22		7

Average Number of Days Above 90F/32C

Years on Record: 36

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		55.2		---		---		---		0.1		2.8		8.4		16.6		16		10.2		1.1		---		---

Average Number of Days Below 32F/0C

Years on Record: 36

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		25.7		9.4		3.5		2.8		1.1		0.2		---		---		---		---		0.4		2.1		6.2

Average Precipitation

Years on Record: 36

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		58.4		10.4		8.3		8		3.4		1.6		0.4		0.1		0.6		1.1		4.3		9		11.2

Average Number of Days With Precipitation

Years on Record: 36

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		108		15		14		16		11		6		2		1		2		3		8		14		16

Most Reported Precipitation in a Month

Years on Record: 36

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		33.9		24.1		16.6		18.8		12.6		7.2		2.7		1.2		5		3.9		16		21.9		33.9

Least Reported Precipitation in a Month

Years on Record: 36

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		---		1.5		1.1		1.1		0.3		---		---		---		---		---		---		0.5		0.4

Most Precipitation Reported in a Day

Years on Record: 36

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		8.5		4.9		4		5.9		2.5		2.4		1		0.4		2.1		1.9		3.7		3.7		8.5

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

Years on Record: 36

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		78		12		10		11		7		4		1		---		1		2		6		11		13

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

Years on Record: 36

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		40		7		6		6		2		1		---		---		---		1		3		6		8

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

Years on Record: 36

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

Average Snowfall

Years on Record: 36

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		1.8		0.5		0.1		0.3		---		---		---		---		---		---		---		0.1		0.8

Most Snow Reported in a Month

Years on Record: 36

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		14.9		6.6		2.3		3.8		---		---		---		---		---		---		---		2		14.9

Heating Degree Days

Years on Record: 36

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1458		367		216		172		107		31		4		---		---		1		31		184		345

Cooling Degree Days

Years on Record: 36

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		684		---		---		---		2		25		107		225		208		105		12		---		---

Growing Degree Days

Years on Record: 36

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2998.2		---		---		3.1		96		294.5		489		675.8		660.3		516		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		10.1		11.2		12.5		13.8		15		15.6		15.3		14.2		12.9		11.5		10.4		9.8

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.4		1.8		2.7		3.9		5.1		6.3		7.2		7.3		6.4		5.1		3.6		2.1		1.6

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.4		0.7		1		1.4		1.9		2.1		2.1		1.9		1.6		1.3		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		4.9		3.1		3.8		4.7		5.3		5.8		6.2		6.5		6.3		6		5.2		3.4		2.9

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.6		3.2		3.9		4.7		5.5		6.7		7.9		8.5		7.8		7		5.6		3.5		3

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.4		1.8		2.7		3.9		5.1		6.3		7.2		7.3		6.4		5.1		3.6		2.1		1.6

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.6		0.8		1.1		1.5		2		2.3		2.3		2.3		2.1		1.6		1.2		0.9		0.7

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		4.1		5.1		5.8		6.1		6.9		6.9		7.2		7.4		7.2		6		4.8		4.2

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		7.5		4.6		5.9		6.5		7.1		9.2		9.6		10.4		10.1		9.2		6.8		5.5		4.8

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.6		1.4		2		2.9		4.3		5.3		6.5		5.9		5		4.5		2.8		1.4		1.3

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		0.9		1.3		1.7		1.7		1.8		1.5		1.2		0.9		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		3.8		2.1		2.6		3.2		4.4		4.9		5.6		5.2		4.9		5.1		3.6		1.9		2.1

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.7		1.9		2.3		2.6		3.9		4.7		6.4		5.5		4.8		5.3		3.4		1.6		1.9