NATIONAL CITY, CALIFORNIA

Average Temperature

Years on Record: 97

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		17.3		13.6		14.1		14.9		16.2		17.4		18.8		20.9		21.7		21		18.9		16.3		14

Average High Temperature

Years on Record: 97

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		21.1		18.2		18.4		18.8		19.7		20.3		21.6		23.8		24.6		24.3		22.8		21.1		18.8

Average Low Temperature

Years on Record: 97

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		13.6		8.9		9.8		11		12.6		14.4		16		18		18.7		17.7		15.2		11.6		9.3

Highest Recorded Temperature

Years on Record: 97

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		43.9		31.1		32.2		33.9		36.7		35.6		38.3		37.8		36.7		43.9		41.7		37.8		31.1

Lowest Recorded Temperature

Years on Record: 97

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-1.7		-1.7		2.2		3.3		5		7.2		10		12.8		13.9		10.6		6.1		2.2		1.1

Average Number of Days Above 90F/32C

Years on Record: 97

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2.5		---		---		0.1		0.2		0.1		0.2		0.1		0.1		0.8		0.6		0.2		---

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		4		---		0.2		---		0.3		0.2		0.2		0.7		0.4		0.9		0.8		0.2		---

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		120.2		2.9		3.7		3.7		6.2		5.6		7.5		21.5		27.8		22.2		11.5		5.1		2.4

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		330		21.3		21.8		23		28.9		30.7		30		31		31		30		31		28.3		22.9

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		365		31		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		363.4		31		28		31		29.9		31		30		29.8		30.7		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		238		31		27.2		27.9		28.2		22.1		14.8		1.8		0.5		5.8		19.1		28.8		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		92.5		23.2		17.1		14.5		4.8		0.2		---		---		---		---		0.3		9.4		23

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		5.2		2		0.8		0.1		---		---		---		---		---		---		---		0.5		1.8

Average Precipitation

Years on Record: 97

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		259		52		50		42		20		5		1		---		2		4		13		24		45

Average Number of Days With Precipitation

Years on Record: 97

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		44		7		7		7		5		2		1		---		1		1		3		4		6

Most Reported Precipitation in a Month

Years on Record: 97

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		235		231		194		177		136		65		22		6		54		80		127		148		235

Most Precipitation Reported in a Day

Years on Record: 97

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		82		65.3		68.8		53.6		82		37.9		12.4		5.8		36.6		31.2		74.9		51.8		66

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

Years on Record: 97

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		21		4		4		4		2		1		---		---		---		---		1		2		3

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

Years on Record: 97

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

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1633		310		244		255		147		80		37		5		2		8		50		180		315

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		379		---		3		13		12		7		22		92		126		79		22		3		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4230		159		180		223		315		392		435		552		589		520		437		273		154

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		11.7		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