MANTECA, CALIFORNIA

Average Temperature

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		60.6		44.6		50.1		54.1		58.4		65.7		71.6		75.8		75		71.5		62.7		53.2		44.7

Average High Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		74.2		53.7		61.1		66.3		72.4		80.9		88.6		93.2		91.5		87.7		77.7		61.1		53.8

Average Low Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		47.5		36.3		39.3		42.1		45.2		50.5		55.9		59.2		58.5		55.9		49.2		40.4		35.4

Highest Recorded Temperature

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		111		72		82		86		92		103		109		111		107		105		96		83		69

Lowest Recorded Temperature

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		21		23		26		29		35		35		41		49		50		42		34		28		21

Average Number of Days Above 90F/32C

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		77.8		---		---		---		0.5		6.3		12.7		23.1		21.1		12.2		1.9		---		---

Average Number of Days Below 32F/0C

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		23.2		10.2		1.6		0.8		---		---		---		---		---		---		---		1.5		9.2

Average Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		59.1		10.5		9.9		8.5		4		1.6		0.4		0.1		0.5		1.2		3.6		8.7		10.1

Average Number of Days With Precipitation

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		59		10		9		7		6		2		1		---		1		1		4		8		10

Most Reported Precipitation in a Month

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		30		27.6		28.1		19.6		8.8		3.8		1.4		0.8		5.9		7		10		24.3		30

Least Reported Precipitation in a Month

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		---		1		0.9		2.2		0.5		---		---		---		---		---		---		1.8		0.6

Most Precipitation Reported in a Day

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		2.4		2.4		1		1.8		0.9		0.7		0.3		0.8		0.4		0.6		0.7		1.4		1.6

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

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		32		5		5		4		3		1		---		---		1		1		2		5		5

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

Years on Record: 13

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

Average Number of Rainy Days

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		30.9		6.9		4.9		5		3.2		0.9		0.2		---		---		0.5		1.1		2.6		5.6

Average Snowfall

Years on Record: 13

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

Most Snow Reported in a Month

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		1		---		1		---		---		---		---		---		---		---		---		---		0.1

Average Relative Humidity

Years on Record: 7

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		64		79		77		69		63		56		52		47		53		56		58		75		83

Average Dew Point

Years on Record: 7

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		45		38		41		41		45		46		48		51		52		51		46		44		40

Heating Degree Days

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1018		327		152		82		34		2		---		---		---		---		6		95		320

Cooling Degree Days

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1216		---		---		1		15		94		214		336		313		202		41		---		---

Growing Degree Days

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4226.1		---		2.8		127.1		252		486.7		648		799.8		775		645		393.7		96		---

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
kWh/m2		5.2		2.3		3.3		4.7		6.1		7.2		8.2		8.2		7.4		5.9		4.3		2.7		2.1

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.2		0.8		1		1.3		1.6		1.8		1.7		1.5		1.3		1.1		0.9		0.8		0.7

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		3.6		4.6		5.8		6.3		6.6		7		7.3		7.3		6.9		6.1		4.3		3.7

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		7.1		3.9		5		6.3		7.3		8.4		9.9		10.3		9.7		8.4		7		4.7		4

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.2		2.3		3.3		4.7		6.1		7.2		8.2		8.2		7.4		5.9		4.3		2.7		2.1

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.5		0.9		1.2		1.6		2		2.3		2.1		1.8		1.5		1.4		1.1		1		0.8

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6.7		4.8		6.2		7		7.2		7.6		7.6		7.6		7.8		7.4		6.8		5.3		5.3

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		8.8		5.6		7.6		8.4		9.1		10.9		11.4		11.4		11		9.5		8.1		6.3		6.3

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.4		1.7		2.5		3.5		5.1		5.8		7.2		7.6		7		5.2		3.8		2.1		1.8

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		0.9		0.7		0.7		1		1.3		1.3		1.3		1.2		1		0.9		0.8		0.7		0.5

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.7		2.4		3.1		4		5.2		5.4		6.2		6.7		6.9		5.9		5.2		3		2.8

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.2		2.1		2.9		3.5		5.2		5.5		7.7		8.8		8.8		6.6		5.6		2.9		2.8