RIVERSIDE, CALIFORNIA

Average Temperature

Years on Record: 117

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		64		52.9		54.7		57.2		61.1		65.6		70.9		76.8		77		73.5		66.4		58.7		53.5

Average High Temperature

Years on Record: 117

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		79.5		66.7		68.3		71.3		75.6		80		87		94.2		94.4		90.9		82.9		74.5		67.7

Average Low Temperature

Years on Record: 117

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		48.6		39		41.1		43.2		46.7		51.1		54.8		59.4		59.6		56.1		49.9		42.8		39.2

Highest Recorded Temperature

Years on Record: 117

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		118		94		94		102		105		110		118		118		113		115		109		99		94

Lowest Recorded Temperature

Years on Record: 117

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		1		1		22		25		29		33		35		41		40		35		30		23		21

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		24.3		---		---		---		0.2		1		2.2		5.9		8.4		5.5		1		---		---

Average Number of Days Above 90F/32C

Years on Record: 117

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		95.7		0.1		0.2		0.8		2.6		4.5		11.8		24.6		24.4		17.1		8.2		1.4		0.1

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		188		3.1		4.4		6.6		11.4		18.2		25.4		30.9		30.9		27.5		18.7		8.3		2.6

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		282.8		13.8		12.7		19.1		23.4		29.1		29.8		31		31		29.9		29.5		20.9		12.6

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		349.7		26.6		24.7		29.3		29.3		31		30		31		31		30		31		29.3		26.5

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

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		357.3		31		28		31		30		31		29.7		28.3		27.8		28.6		30.9		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		271.1		30.9		27.9		31		29.8		26.4		17.2		5.1		4.3		11.8		25.8		29.9		30.9

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		148.2		27.4		23.1		22.9		14.8		3.7		0.3		---		---		0.4		5.6		21.2		28.7

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		37.2		10.4		5.6		3.4		0.7		---		---		---		---		---		0.1		4.4		12.6

Average Number of Days Below 32F/0C

Years on Record: 117

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		16.1		5.7		2.8		1.3		0.2		---		---		---		---		---		0.1		1.3		4.7

Average Precipitation

Years on Record: 117

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		10.2		2		2.2		1.8		0.8		0.2		---		---		0.1		0.2		0.4		0.8		1.5

Average Number of Days With Precipitation

Years on Record: 117

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		35		6		6		6		3		2		---		---		1		1		2		3		5

Most Reported Precipitation in a Month

Years on Record: 117

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		10.1		9.1		10.1		9.4		3.6		3.1		0.8		1.3		2.3		3.9		5.3		5.7		6.8

Most Precipitation Reported in a Day

Years on Record: 117

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		4.4		2.7		3.2		4.4		3.1		1.4		0.8		1.3		2		1.7		2.5		2.1		3.3

Avg. No. of Days w/Precip. Above 0.1in/2.5mm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		19.9		3.9		4.5		3.4		1.5		0.4		0.2		0.2		0.2		0.4		0.8		1.9		2.5

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

Years on Record: 117

		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: 117

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

Avg. No. of Days w/Precip. Above 0.5in/13mm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6.4		1.2		2		1.2		0.5		0.1		---		---		0.1		0.1		0.3		0.5		0.4

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

Years on Record: 117

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

Average Precipitable Water

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		0.6		0.5		0.5		0.5		0.5		0.6		0.7		0.9		0.9		0.8		0.6		0.5		0.5

Average Number of Rainy Days

Years on Record: 59

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		37		6		6		6		4		1		1		1		1		1		2		3		5

Average Number of Days With Thunderstorms

Years on Record: 46

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		12		1		1		1		1		1		1		1		1		1		1		1		1

Most Rain Reported in a Day

Years on Record: 59

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		3.1		3.1		2.4		2.4		1.6		1.1		0.9		1.4		1.7		2.1		1.1		2.1		2.7

Most Rain Reported in a Month

Years on Record: 59

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		24		9		8.9		6.1		4.6		2.1		0.9		1.5		2.4		3		2.9		5.6		6.1

Deepest Snow Cover Reported

Years on Record: 49

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

Most Snow Reported in a Day

Years on Record: 49

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		4.7		0.2		0.6		---		---		---		---		---		---		---		0.1		0.8		3

Most Snow Reported in a Month

Years on Record: 117

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		3		3		---		2		---		---		---		---		---		---		---		---		---

Average Relative Humidity

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		59.5		61.9		66.8		67.2		63.4		64.1		60.2		55		49.9		54.1		58.1		55.8		57.9

Average Morning Relative Humidity

Years on Record: 10

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		67.8		64.9		71.5		77		73.2		72.8		67.3		68.3		61.5		64.3		69.3		60.6		63.2

Average Evening Relative Humidity

Years on Record: 10

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		35.8		38.8		42.3		45.9		38.9		39.3		33.9		33.2		29.5		29.5		33.9		30.7		34.5

Average Dew Point

Years on Record: 10

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		44		33		37		41		44		48		51		55		54		51		47		35		31

Average Wet Bulb

Years on Record: 10

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		53		44		46		49		52		55		60		63		63		60		56		47		43

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1286		282		224		179		91		24		2		---		---		1		22		153		308

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1942		3		5		15		55		143		271		449		474		357		146		22		1

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6162		195		207		303		414		584		719		914		939		805		589		321		171

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		11.4		12.4		13.5		14.4		14.9		14.6		13.8		12.8		11.7		10.8		10.4

Average Number of Days With Fog

Years on Record: 46

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		169		13		14		18		16		18		16		11		10		12		16		13		12

Average Possibility of Clouds

Years on Record: 10

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		33.5		43		49		47.9		44.9		42.2		24.8		22.2		13.5		21		32.6		27.5		34.7

Average Total Sky Cover

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		41.6		50.9		57.9		50.6		47		45.3		34.1		31		24		29		40.6		40.2		46.9

Average Opaque Sky Cover

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		36.7		42.7		51.1		46.6		45.3		42.3		30.7		26.7		20		25.5		36.8		34.3		37.9

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		4		5.4		6.6		7.5		7.6		6.9		6.3		5.5		4.4		3.4		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		0.8		1.1		1.3		1.6		1.8		2		2.1		1.9		1.5		1.2		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		4.7		5.4		6.3		6.7		6.8		6.5		6.1		6.1		6.1		5.7		5.1		4.6

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6.8		5.5		5.9		7.1		8		8.6		8.3		7.2		6.8		6.7		6.2		5.9		5.4

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.3		3.1		4		5.4		6.6		7.5		7.6		6.9		6.3		5.5		4.4		3.4		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		1.6		1		1.2		1.6		1.8		2.1		2.2		2.4		2.1		1.7		1.3		0.9		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		6.6		5.5		6.5		7.1		7.4		7.3		7		6.9		7		6.9		6.9		5.8		5.4

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		6.7		7.7		8.6		9.4		9.9		9.4		9		8.8		8.3		8.3		7.1		6.6

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.7		2.6		3.4		4.5		5.9		6.7		7.1		6		5.8		4.8		3.9		3.2		2.6

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		0.7		0.8		1		1.3		1.5		1.7		1.7		1.5		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		5.1		3.8		4.5		5.2		6		6.1		6.1		5.4		5.6		5.2		4.9		4.6		4

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.4		4		4.5		5.1		6.4		6.9		7.2		5.4		5.7		5.1		4.9		5.2		4.5