LOWER OTAY LAKE, CALIFORNIA

Average Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		62		54.9		55.6		56.7		59.2		62.8		65.4		69		70.9		69.7		65.3		58.7		54.8

Average High Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		71.9		65.9		65.7		67		68.9		71.6		73.9		77.8		79.9		79.3		75.5		70.9		66.3

Average Low Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		52		43.8		45.6		46.4		49.5		54		56.9		60.3		61.9		60.2		55		46.5		43.3

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		0.3		---		---		---		---		---		---		---		0.1		0.2		---		---		---

Average Number of Days Above 90F/32C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6.9		---		0.1		0.3		0.4		0.3		0.4		0.1		1.3		1.7		1.9		0.4		---

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		57.9		1.6		1.3		1.9		2.2		2.7		2.1		8.8		12.5		12.5		7.9		4		0.4

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		212.1		8.2		6.3		8		9.7		17.7		25.4		30.2		30.9		28.8		23.2		14.4		9.4

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		340		23.8		21.7		27.9		28.8		30.9		30		31		31		30		31		28.9		25

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		364.9		30.9		28		31		30		31		30		31		31		30		31		30		31

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		365		31		28		31		30		31		30		31		31		30		31		30		31

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		364.5		31		28		31		30		31		30		30.6		31		29.9		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		299.5		31		28		31		29.9		29.6		25.8		15.7		7.8		13.7		26.3		29.7		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		150.9		27.5		22.6		23.8		16.3		4.8		0.5		---		---		0.1		4.1		23.3		28.1

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		24.8		6.6		3.4		2.8		0.9		---		---		---		---		---		---		2.8		8.4

Average Number of Days Below 32F/0C

Years on Record: 30

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

Average Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		12.4		2.5		2.2		2.5		0.9		0.2		0.2		0.1		0.1		0.2		0.5		1.2		1.9

Average Number of Days With Precipitation

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		40		7		5		6		5		2		1		---		---		1		2		4		7

Most Reported Precipitation in a Month

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		7.9		4.8		2.9		7.9		4.6		1.8		0.2		0.1		1.4		0.2		3.1		2.5		6.5

Least Reported Precipitation in a Month

Years on Record: 17

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

Most Precipitation Reported in a Day

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		3.3		1.9		1		1.7		2		1		0.1		0.1		1		0.1		1.1		0.9		3.3

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

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		23		5		3		4		3		1		---		---		---		---		1		2		4

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

Years on Record: 17

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

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

Years on Record: 17

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

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1736		318		265		262		184		90		31		3		1		6		55		204		317

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		625		3		3		5		10		21		43		128		184		148		63		15		1

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4394		161		162		209		277		397		462		591		648		592		473		264		158

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.6		10.7		11.5		12.4		13.5		14.3		14.7		14.5		13.7		12.7		11.8		10.9		10.5

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.3		3.1		3.9		5.2		6.5		7		7.3		7.2		6.5		5.6		4.4		3.5		2.9

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		0.9		1.2		1.4		1.7		2		2.1		2		1.8		1.5		1.2		0.9		0.8

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.8		4.6		5.2		6		6.5		6.4		6.4		6.4		6.3		6.1		5.6		5		4.5

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		5.3		5.5		6.5		7.5		7.6		7.8		7.7		7.2		6.8		6.2		5.8		5.2

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.3		3.1		3.9		5.2		6.5		7		7.3		7.2		6.5		5.6		4.4		3.5		2.9

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.7		1		1.3		1.7		2		2.2		2.4		2.3		2.1		1.7		1.4		1		0.9

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6.6		5.3		6.3		6.9		7.5		7.1		7.3		7.1		7.1		6.8		6.9		5.7		5.6

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		8.3		6.3		7.3		8.2		9.5		9.2		10.2		9.5		9.1		8.2		8.3		7		6.9

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.6		2.6		3.3		4.3		5.6		6.2		6.1		6.2		5.8		5.1		3.8		3.1		2.5

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.1		0.8		0.9		1.2		1.3		1.6		1.6		1.6		1.4		1.2		0.8		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		4.9		3.7		4.2		4.7		5.6		5.7		5.3		5.6		5.6		5.5		4.7		4.3		3.7

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5		3.8		4		4.4		5.7		6		5.4		5.8		5.7		5.7		4.7		4.7		4