SAN ARDO, CALIFORNIA

Average Temperature

Years on Record: 108

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		12.9		5.7		6.9		8.4		10.6		14.4		18.3		21.9		21.5		18.8		14.1		8.7		5.9

Average High Temperature

Years on Record: 108

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		22.7		13.3		14.4		16.4		19.9		24.7		29.6		33.9		33.5		30.4		24.8		17.8		13.7

Average Low Temperature

Years on Record: 108

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		3.2		-1.8		-0.6		0.3		1.3		4.1		6.9		9.9		9.4		7.1		3.3		-0.3		-1.8

Highest Recorded Temperature

Years on Record: 108

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		45		26.1		27.2		32.2		36.7		40.6		43.3		45		43.9		42.2		39.4		32.2		28.3

Lowest Recorded Temperature

Years on Record: 108

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-16.7		-15		-11.7		-10.6		-8.9		-6.7		-2.2		0.6		0.6		-3.3		-9.4		-11.7		-16.7

Average Number of Days Above 100F/38C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		18.2		---		---		---		---		0.2		1.9		6.7		6.7		2.5		0.1		---		---

Average Number of Days Above 90F/32C

Years on Record: 108

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		73.7		---		---		---		0.2		3.1		10.7		22		21.1		13.2		3.4		---		---

Average Number of Days Above 80F/26C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		147.3		---		0.1		0.9		5.2		14.9		24.4		30.6		30.6		25.3		13.7		1.7		---

Average Number of Days Above 70F/21C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		212.2		2.9		3.5		8.6		15.1		25.3		29.3		31		31		29.1		25.1		9.1		2.3

Average Number of Days Above 60F/15C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		285.1		12.7		13		20.5		25.2		30.3		30		31		31		29.9		30.1		20.5		11.1

Average Number of Days Above 50F/10C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		349.8		26.1		25		29.6		29.5		31		30		31		31		30		31		29.1		26.5

Average Number of Days Above 40F/4C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		364.5		30.9		27.8		31		30		31		30		31		31		30		31		30		30.8

Average Number of Days Below 70F/21C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		364.9		31		28		31		30		31		30		30.9		31		30		31		30		31

Average Number of Days Below 60F/15C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		360.9		31		28		31		30		31		29.9		29		29.7		29.4		31		30		31

Average Number of Days Below 50F/10C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		318.2		30.7		27.8		30.7		29.8		29.4		23.8		15.4		17		23.8		29.3		29.5		30.9

Average Number of Days Below 40F/4C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		198.7		27.3		23.2		25.5		24		15.4		4.9		0.8		0.8		4.9		18.2		26.3		27.5

Average Number of Days Below 32F/0C

Years on Record: 108

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		120.2		21.9		17.7		16.9		12		4.1		0.5		---		---		0.6		6		18.1		22.3

Average Number of Days Below 20F/-6C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		8.7		3.2		1		0.1		---		---		---		---		---		---		---		1.2		3.3

Average Number of Days Below 10F/-12C

Years on Record: 30

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

Average Precipitation

Years on Record: 108

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		526		115		103		87		37		14		2		1		1		7		21		47		90

Average Number of Days With Precipitation

Years on Record: 108

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		49		9		8		8		5		2		1		---		---		1		2		5		8

Most Reported Precipitation in a Month

Years on Record: 108

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		429		429		305		338		180		111		29		25		41		124		108		249		319

Most Precipitation Reported in a Day

Years on Record: 108

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		129.5		128.3		86.9		128.3		71.9		68.6		16.3		25.4		34.3		53.3		54.6		96.5		129.5

Avg. No. of Days w/Precip. Above 0.1in/2.5mm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		37.5		7.1		7.4		5.9		3.1		1.3		0.3		0.2		0.1		0.7		1.8		3.8		5.8

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

Years on Record: 108

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		36		7		7		6		3		1		---		---		---		1		2		3		6

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

Years on Record: 108

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		13		3		3		2		1		---		---		---		---		---		1		1		2

Avg. No. of Days w/Precip. Above 0.5in/13mm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		15.2		3.4		3.2		2.6		0.9		0.3		---		---		---		0.1		0.9		1.4		2.4

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

Years on Record: 108

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

Average Snowfall

Years on Record: 108

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		6.1		2.5		1.3		1		0.2		---		---		---		---		---		---		0.2		0.8

Average Number of Days With Snow

Years on Record: 30

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

Most Snow Reported in a Month

Years on Record: 108

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		38.1		38.1		22.4		25.4		2.5		---		---		---		---		---		---		6.3		10.2

Avg. No. of Days w/Snow Above 1in/2.5cm

Years on Record: 30

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

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3724		643		532		494		373		192		54		6		6		47		217		494		666

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		740		---		---		---		1		26		102		247		229		118		17		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3250		10		20		53		117		303		498		707		688		520		272		54		7

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.6		10.5		11.4		12.4		13.6		14.6		15.1		14.8		13.9		12.8		11.7		10.7		10.2

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.1		9.4		12.6		17.9		23		27.8		29.3		27.9		24.9		20.8		15.7		11		8.5

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		3		3.9		4.8		5.8		5.9		6.1		6.2		5.7		4.7		3.7		3		2.7

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		20.9		14.8		16.9		21.4		23.6		25.2		25.2		24.6		24.2		23.4		21.4		16.9		13.9

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		25.2		16.3		18.6		23.6		27.6		33.3		34.9		32.7		29.9		27.4		24.1		19.3		15.3

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.1		9.4		12.6		17.9		23		27.8		29.3		27.9		24.9		20.8		15.7		11		8.5

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.5		3.4		4.5		5.7		6.8		7.9		7.9		7.1		6.2		5.4		4.4		3.4		3

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		24.2		18.4		21.5		26.1		25.7		27.5		27.5		27.7		26.5		25.5		23.6		21.3		18.9

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		31.5		21.9		26.1		32		32.3		39.2		41.7		41.3		35.1		31.5		27.8		26.2		22.8

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.6		6.9		9.5		15.3		20		22.6		25.2		26		23.7		19		13.8		9.8		7.3

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		3.6		2.5		2.9		3.4		4.9		4.5		4.5		4.2		4.6		3.9		3.1		2.2		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		17.7		9.6		11.6		17.7		20.2		20.7		21.9		23		23		21.1		18		14.4		11.3

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.2		8.9		10.6		17.4		21		22.3		25.9		28.4		27.2		23.1		18.8		15.4		11.5