DIABLO, NEVADA

Average Temperature

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		11.5		-1.8		2.6		6.1		9.8		16.1		21.9		26.3		24.1		18.1		11.9		4.6		-1.8

Average High Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		19.9		4.9		8.9		14.6		17.8		25.3		33		37.2		33.8		26.6		19.6		10.1		5.5

Average Low Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		4		-8.7		-3.9		1.2		3.2		7.7		14.4		18.2		15.1		9		2.6		-3.8		-8.2

Highest Recorded Temperature

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		44.4		19.4		21.7		27.8		31.7		40.6		42.2		44.4		43.3		40		32.2		24.4		20

Lowest Recorded Temperature

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-31.7		-31.7		-30		-16.1		-11.1		-6.1		-1.7		3.3		2.2		-3.9		-12.2		-14.4		-28.9

Average Number of Days Above 90F/32C

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		72.7		---		---		---		---		4.5		14.3		26.8		21.2		5.8		0.1		---		---

Average Number of Days Below 32F/0C

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		153.7		28.2		22.7		21.2		13		3.5		0.3		---		---		0.8		12.1		23.9		28

Average Number of Days Below 0F/-17C

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		7.7		4.5		0.9		---		---		---		---		---		---		---		---		---		2.3

Average Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		217		18		14		22		12		14		9		20		36		30		16		14		13

Average Number of Days With Precipitation

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		31		3		3		3		3		2		2		3		4		2		1		3		2

Most Reported Precipitation in a Month

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		134		59		59		91		40		35		56		134		78		52		71		23		56

Most Precipitation Reported in a Day

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		45.7		33		30		24.1		22.9		21.1		19.1		38.1		35.6		30.5		45.7		14		37.6

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

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		16		2		1		1		2		1		1		2		2		1		1		1		1

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

Years on Record: 21

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

Average Snowfall

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		10.4		0.8		4.3		0.5		1.8		---		---		---		---		---		---		1		2

Most Snow Reported in a Month

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		33		6.3		33		5.1		20.8		1		---		---		---		---		---		10.2		19.8

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1774.4		382.2		276.7		244.4		139.4		36.1		---		---		---		3.3		80		236.7		375.6

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1133.9		---		---		3.3		26.1		77.2		210		323.9		294.4		151.7		47.2		---		---

Growing Degree Days

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1790.1		---		---		---		---		187.7		356.7		506.3		437.4		241.7		60.3		---		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.7		10.4		11.3		12.4		13.7		14.7		15.3		15		14		12.8		11.6		10.6		10.1

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18		9.4		12.5		17.5		21.6		24.8		27.4		25.5		23		19.6		14.9		10.4		8.7

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		4.8		2.6		3.5		4.6		6.1		7		7		7.2		6.3		4.8		3.6		2.8		2.2

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		20.4		16.2		17.7		21.4		22.2		22.7		23.6		22.6		22.5		22.4		20.8		17.1		16.2

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		23.9		18.1		19.8		23.9		25.3		27.4		31		27.9		26.4		25.9		23.4		19.6		18.4

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18		9.4		12.5		17.5		21.6		24.8		27.4		25.5		23		19.6		14.9		10.4		8.7

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		4.1		5.3		6.9		8.1		8.1		8.2		7.1		5.7		4.4		3.2		2.7

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		23.7		19.4		21.2		24.4		24.7		25.2		26.3		25.6		26.5		25.9		26.1		19.2		20.3

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		30.2		22.5		25.4		28.9		30.2		33.6		38.4		35.6		35.5		32.4		32		22.9		24.6

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.7		7.9		10.8		15.7		19.1		21.5		24.3		22.5		20.7		17.4		12.3		8.9		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		3.8		2.1		2.8		3.8		5.2		5.8		5.4		5.6		4.5		3.6		2.2		2.4		1.6

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.4		12.6		14.6		18.7		19.4		19.7		21.2		20.1		20.2		19.4		16.2		13.7		12.7

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18.4		13		15		19.3		19.9		20.6		24.6		21.9		21.6		20.4		16.4		14.4		13.3