SAN MARCOS, CALIFORNIA

Average Temperature

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		18.2		13.3		13.8		14.8		16.9		18.7		21.2		23.7		24.4		23.3		19.7		15.6		13

Average High Temperature

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		25.2		20.4		20.7		21.3		23.7		24.9		27.9		30.8		31.5		30.3		26.6		23		20.6

Average Low Temperature

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		11.3		6.1		6.9		8.4		10.2		12.6		14.5		16.7		17.4		16.2		12.9		8.1		5.5

Highest Recorded Temperature

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		44.4		33.3		34.4		36.1		39.4		39.4		40.6		44.4		42.8		43.3		40.6		36.7		32.2

Lowest Recorded Temperature

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-3.9		-3.9		-2.8		---		2.2		-0.6		5		11.1		12.2		9.4		3.9		-1.7		-3.3

Average Number of Days Above 90F/32C

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		45.3		---		0.1		0.3		1.2		1.6		4.1		10.2		13.1		10.4		3.6		0.8		0.1

Average Number of Days Below 32F/0C

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3.1		1		0.5		---		---		0.1		---		---		---		---		---		0.3		1.2

Average Precipitation

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		385		80		90		70		29		6		3		2		2		5		19		32		47

Average Number of Days With Precipitation

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		43		7		7		6		4		2		1		1		1		1		3		4		6

Most Reported Precipitation in a Month

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		409		409		288		253		97		37		25		19		37		51		120		163		225

Least Reported Precipitation in a Month

Years on Record: 32

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

Most Precipitation Reported in a Day

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		82.3		82.3		71.1		66.5		45.7		20.3		19.1		18.8		36.8		43.7		51.8		50.8		76.7

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

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		28		5		6		5		3		1		---		---		---		---		1		3		4

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

Years on Record: 32

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

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

Years on Record: 32

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

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		813.3		163.3		127.2		118.3		71.7		40.6		8.3		0.6		---		3.3		19.4		93.3		167.2

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		797.8		---		2.2		7.2		26.7		57.2		103.3		173.3		191.7		152.2		70		11.7		2.2

Growing Degree Days

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3082.1		101.6		108.3		149.8		208.3		270.4		336.7		425.4		447.8		398.3		301.4		166.7		93

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		14.4		14.8		14.5		13.8		12.8		11.7		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
Mj/m2		18.9		11.2		14		18.6		23.3		25.3		26.4		25.9		23.5		20.2		15.9		12.5		10.4

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.2		3.2		4.1		5.2		6		7.1		7.4		7.1		6.5		5.4		4.2		3.2		2.8

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		20.7		16.6		18.5		21.5		23.4		23		22.9		23		22.7		22.1		20.3		18		16.3

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		23.7		18.9		19.8		23.4		26.9		27.2		28		27.8		26		24.5		22.1		20.9		18.8

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		11.2		14		18.6		23.3		25.3		26.4		25.9		23.5		20.2		15.9		12.5		10.4

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6		3.6		4.7		6.1		7.1		8.1		8.8		8.3		7.4		6		4.9		3.7		3.3

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		23.8		19		22.6		24.9		26.9		25.5		26.1		25.5		25.7		24.6		24.9		20.6		20

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		29.9		22.8		26.2		29.4		34.2		33.2		36.7		34.3		32.8		29.4		29.9		25.1		24.7

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.4		9.4		11.9		15.3		20.3		22.4		21.8		22.4		20.9		18.5		13.8		11.1		9

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		4.1		2.7		3.2		4.1		4.5		5.9		5.6		5.8		5.1		4.5		3		2.6		2.1

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.6		13.1		15.1		17.1		20.3		20.5		19.2		20		20.1		19.9		17		15.5		13.3

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.9		13.5		14.5		15.9		20.6		21.4		19.3		20.9		20.6		20.6		16.8		16.8		14.2