REDDING - AIRPORT, CALIFORNIA

Average Temperature

Years on Record: 25

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		62.5		45.9		49.4		53.9		58.7		67.2		75.7		82.4		79.9		74.5		64.3		52.2		45.5

Average High Temperature

Years on Record: 25

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		75.5		55.1		59.6		65.2		71		80.7		90.2		98.9		96.9		91.4		78.9		63.5		54.8

Average Low Temperature

Years on Record: 25

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		49.4		36.8		39.2		42.6		46.3		53.7		61.2		66		62.8		57.7		49.6		41		36.2

Highest Recorded Temperature

Years on Record: 25

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		118		78		83		88		96		106		117		118		115		116		105		88		78

Lowest Recorded Temperature

Years on Record: 25

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		16		19		21		28		28		34		42		53		50		40		33		23		16

Average Number of Days Above 90F/32C

Years on Record: 25

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		102.5		---		---		---		1		6.9		17.1		28.3		26		18.5		4.8		---		---

Average Number of Days Below 32F/0C

Years on Record: 25

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		30.6		9.4		4.5		1.9		0.3		---		---		---		---		---		---		3.3		11.2

Average Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		37		6.6		5.9		4.8		2.5		1.8		0.9		0.2		0.2		0.9		2.5		4.2		6.6

Average Number of Days With Precipitation

Years on Record: 25

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		83		13		11		11		8		7		3		1		1		2		5		9		12

Most Reported Precipitation in a Month

Years on Record: 25

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		22.9		22.9		15.8		14.8		6.1		7.7		2.3		1.1		1.1		4.8		6.3		10.1		14.7

Least Reported Precipitation in a Month

Years on Record: 25

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		---		0.4		0.1		0.3		0.1		---		---		---		---		---		---		0.3		---

Most Precipitation Reported in a Day

Years on Record: 25

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		4		4		3.2		2.4		2.3		3.6		1.3		1.1		0.8		2.8		3.9		3.1		3.5

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

Years on Record: 25

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		56		10		8		8		5		4		2		---		---		1		3		6		9

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

Years on Record: 25

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		24		5		4		3		2		2		1		---		---		---		1		2		4

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

Years on Record: 25

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

Average Snowfall

Years on Record: 25

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		4.1		1.5		0.2		0.2		---		0.2		---		---		---		---		---		---		2

Most Snow Reported in a Month

Years on Record: 25

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		17		10.9		1.4		1.8		---		1.5		---		---		---		---		---		---		17

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2961		606		445		390		239		99		7		---		---		13		131		420		611

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1741		---		---		3		22		133		310		504		430		263		74		2		---

Growing Degree Days

Years on Record: 25

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4861.7		---		---		120.9		261		533.2		771		1004.4		926.9		735		443.3		66		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.7		10.2		11.2		12.5		13.8		15		15.6		15.2		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		4.8		2.1		3.1		4.3		5.5		6.7		7.8		8		7		5.6		3.8		2.3		1.8

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		1.3		1.8		2		1.9		1.6		1.4		1.1		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		5.5		3.7		4.5		5.3		5.7		6.2		6.7		7		7		6.6		5.7		3.8		3.5

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6.6		4		5		5.6		6.2		7.5		9.2		10		9.2		8		6.4		4.1		3.8

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.8		2.1		3.1		4.3		5.5		6.7		7.8		8		7		5.6		3.8		2.3		1.8

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		4.8		5.6		6.1		6.7		7.2		7.3		7.6		7.5		7.4		6.5		5.1		4.6

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		8.2		5.5		6.7		7		8.2		10.1		11		11.5		10.4		9.5		7.6		5.9		5.3

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		1.7		2.6		3.4		4.3		5		6.9		7.2		6.5		4.6		3.1		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		0.6		0.8		1.2		1.5		1.5		1.5		1.2		1.1		0.9		0.8		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		4.4		2.7		3.6		4		4.4		4.6		6		6.4		6.4		5.2		4.3		2.7		2.7

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.7		2.6		3.6		3.7		3.9		4.2		7.2		8.3		7.8		5.5		4.3		2.6		2.7