TRINITY NATIONAL FOREST, CALIFORNIA

Average Temperature

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		52.4		37.7		41.3		44.4		48.9		56.3		63.8		70		69.3		63.4		54		43.2		37

Average High Temperature

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		67.7		47.2		52.5		57.4		64		73.1		82.4		90.6		90.2		83.3		71		54.6		46

Average Low Temperature

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		37.2		28.1		30.1		31.4		33.8		39.4		45.3		49.5		48.3		43.6		37		31.8		28.1

Highest Recorded Temperature

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		111		67		77		83		92		99		106		111		110		106		98		80		72

Lowest Recorded Temperature

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		-4		---		6		15		17		23		28		30		34		27		15		12		-4

Average Number of Days Above 90F/32C

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		56.3		---		---		---		0.1		1.5		7.4		18.6		18.6		8.7		1.3		---		---

Average Number of Days Below 32F/0C

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		126.1		23.4		18.9		18.2		13		3.8		0.5		---		---		0.6		6.8		16.9		23.8

Average Number of Days Below 0F/-17C

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		0.1		---		---		---		---		---		---		---		---		---		---		---		0.1

Average Precipitation

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		36.8		6.6		5.3		4.4		2.2		1.6		0.9		0.4		0.6		0.8		2.4		5		6.5

Average Number of Days With Precipitation

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		95		13		12		13		10		7		4		2		2		3		6		11		12

Most Reported Precipitation in a Month

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		20.8		17.7		15.8		12.7		10.2		5.7		4		2.2		3.4		3.8		14.2		15.1		20.8

Least Reported Precipitation in a Month

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		---		0.3		0.1		0.5		0.2		---		---		---		---		---		---		0.1		0.2

Most Precipitation Reported in a Day

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		6.3		4.2		6.3		3.1		2.1		1.7		2.3		2		1.8		1.5		3.9		3.5		4.3

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

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		66		10		9		9		5		5		2		1		2		2		4		8		9

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

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		26		4		4		3		1		1		1		---		---		1		2		4		5

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

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		9		2		2		1		---		---		---		---		---		---		1		1		2

Average Snowfall

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		23.4		6.3		4.6		3		1.6		---		---		---		---		---		0.1		2		5.8

Average Snow Cover

Years on Record: 45

		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: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		33.5		32		33.5		27		21.5		0.2		---		---		---		---		3		20		29.6

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5116		843		667		633		471		275		119		46		33		125		355		669		880

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		615		---		---		---		11		19		82		207		185		91		20		---		---

Growing Degree Days

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2353.6		---		---		---		---		195.3		414		620		598.3		402		124		---		---

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		13.9		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		4.7		2		2.8		4		5.2		6.5		7.7		8.1		7.1		5.5		3.8		2.2		1.7

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		0.7		1		1.4		1.8		2		1.9		1.5		1.4		1.2		0.9		0.8		0.6

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.3		3.4		4.1		4.9		5.4		6		6.6		7.1		7		6.6		5.6		3.6		3.2

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6.3		3.6		4.4		5.1		5.7		7.1		9		10.2		9.3		8		6.2		3.8		3.4

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.7		2		2.8		4		5.2		6.5		7.7		8.1		7.1		5.5		3.8		2.2		1.7

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		1.1		1.5		2		2.4		2.2		1.9		1.7		1.5		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		4.6		5.7		6.1		6.6		7.2		7.5		7.7		7.7		7.4		6.8		4.9		4.5

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		8.3		5.2		6.9		7		8.1		10		11.6		11.7		10.9		9.4		8.3		5.8		5.1

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.9		1.5		2.1		3.4		3.6		4.7		6.8		7.2		6.4		4.6		3		1.7		1.2

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		0.6		0.7		1.2		1.5		1.5		1.3		1.2		1		0.9		0.7		0.6		0.5

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.1		2.4		2.8		4		3.6		4.3		5.9		6.4		6.4		5.2		4.1		2.6		1.9

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.3		2.2		2.5		3.7		2.8		3.7		7.1		8.2		7.7		5.5		4.1		2.4		1.7