RICHMOND, VIRGINIA

Average Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		58.9		37.9		40.9		48.6		58.2		66.4		75.3		79.3		77.5		70.6		59.7		50.4		41

Average High Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		69.6		47.4		51.3		60		70.3		77.9		86.1		89.7		87.6		81.2		71		61.4		50.7

Average Low Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		48.1		28.3		30.5		37.1		46.1		55		64.5		68.9		67.4		60.1		48.3		39.4		31.4

Highest Recorded Temperature

Years on Record: 83

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		105		81		83		93		96		100		104		105		104		103		99		86		81

Lowest Recorded Temperature

Years on Record: 83

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		-12		-12		-10		10		23		31		40		51		46		35		21		10		-1

Average Heat Index Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		59		37.8		40.8		48.4		58.2		66.5		75.7		80.4		77.9		70.4		59.2		50		41.3

Average Wind Chill Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		56.9		32.9		36.5		45.4		57.1		66.1		74.8		78.6		76.5		70		58.6		48		37.3

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		1.3		---		---		---		---		---		0.2		0.7		0.3		---		---		---		---

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		42		---		---		---		0.7		2		9.2		15.9		10.8		3.2		0.3		---		---

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		126.1		---		0.2		1.5		5.8		13.6		24.9		29.1		28.1		17.2		5		0.6		0.1

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		193.7		1		1.6		6.7		15.2		25.3		29.2		31		30.6		28.1		16.9		6.6		1.5

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		253.9		5.2		6.5		15		24.9		30.1		30		31		31		29.8		27.8		16.6		6

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		306		12.2		14.4		24.7		29.2		30.9		30		31		31		30		30.8		25.9		15.8

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		345.2		22.2		23.7		30		30		31		30		31		31		30		31		29.5		25.9

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		331.4		31		28		31		30		30.7		23.5		16.4		21.3		27.6		30.8		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		253.8		31		28		30.7		28.5		22.5		6.8		1.1		2.7		14.1		27.9		29.5		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		192.6		30.4		27.4		28.5		20.3		8.6		0.7		---		0.2		3.1		17.9		25.6		29.9

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		128.4		28		24.3		19.9		7.1		0.5		---		---		---		0.1		6		16.8		25.8

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		73.5		20.5		17.1		9.4		1.3		---		---		---		---		---		0.5		7.1		17.8

Average Number of Days Below 20F/-6C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		12.6		6.1		2.8		0.5		---		---		---		---		---		---		---		0.1		3

Average Number of Days Below 10F/-12C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1.5		1		0.1		---		---		---		---		---		---		---		---		---		0.3

Average Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		43.6		3		2.8		4		3.3		3.8		3.9		4.5		4.7		4.1		3		3.2		3.3

Average Number of Days With Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		114		9.7		8.9		10.3		10		10.8		10		11.4		9.1		8.4		7.4		8.3		9.7

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		73.6		6		5.9		6.8		6.5		7.2		6		7.3		6.3		5.2		5		5.4		6

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		29.3		2.2		1.7		2.6		2.1		2.6		2.6		3		3.1		2.6		2.1		2.2		2.5

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

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		11.1		0.7		0.6		1		0.7		0.8		1.1		1.3		1.3		1.3		0.8		0.9		0.6

Average Precipitable Water

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		0.9		0.5		0.5		0.6		0.7		1		1.3		1.5		1.5		1.2		0.9		0.7		0.5

Average Number of Rainy Days

Years on Record: 56

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		113		10		9		11		9		11		9		11		10		8		7		8		9

Average Number of Days With Thunderstorms

Years on Record: 59

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		42		---		---		2		3		6		8		10		8		3		1		1		---

Most Rain Reported in a Month

Years on Record: 75

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		61.3		10.1		6		8.6		7.3		8.9		9.3		16.1		14.1		11		9.4		7.6		7.1

Least Recorded Rainfall

Years on Record: 75

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		26.8		0.6		0.3		0.9		0.5		0.4		0.4		0.5		0.6		0.3		0.3		0.2		0.4

Average Snowfall

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		10.3		3.9		3.4		0.6		0.1		---		---		---		---		---		---		0.2		2.1

Average Number of Days With Snow

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6.1		1.9		1.9		0.8		0.1		---		---		---		---		---		---		0.2		1.2

Avg. No. of Days w/Snow Above 1in/2.5cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2.9		0.9		1		0.1		---		---		---		---		---		---		---		0.1		0.8

Avg. No. of Days w/Snow Above 3in/7.5cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1.1		0.5		0.4		---		---		---		---		---		---		---		---		---		0.2

Avg. No. of Days w/Snow Above 5in/12.7cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		0.4		0.2		0.1		---		---		---		---		---		---		---		---		---		0.1

Avg. # of Days w/Snow Depth Above 1in/2.5cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		8.2		3.4		2.6		0.2		---		---		---		---		---		---		---		0.1		1.9

Avg. # of Days w/Snow Depth Above 3in/7.5cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4.2		1.6		1.5		---		---		---		---		---		---		---		---		0.1		1

Avg. # of Days w/Snow Depth Above 5in/12.7cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1.6		0.9		0.5		---		---		---		---		---		---		---		---		---		0.2

Avg. # of Days w/Snow Depth Above 10in/25cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		0.4		0.2		0.2		---		---		---		---		---		---		---		---		---		---

Average Relative Humidity

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		68.1		64.9		61.4		61.5		62.4		68.8		70.8		72		73.8		74.1		73.1		68.2		66.7

Average Morning Relative Humidity

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		83		80		79		78		76		81		82		85		89		90		89		84		80

Average Evening Relative Humidity

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		52		55		50		46		43		51		53		56		58		57		53		51		55

Average Dew Point

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		47		26.3		28.1		33.9		43.4		54		63.4		67.7		66.8		60.3		49.3		38.7		30.4

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3771		842		675		516		240		74		7		---		1		28		204		443		743

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1549		---		---		6		36		119		315		443		388		197		39		5		1

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4519		20		25		99		268		510		759		908		852		619		310		115		33

Average Sea Level Pressure

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
InHg		30.1		30.1		30.1		30.1		30		30		30		30		30		30.1		30.1		30.1		30.1

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.6		10.4		11.3		12.4		13.7		14.7		15.2		14.9		14		12.8		11.6		10.6		10.1

Average Number of Days With Fog

Years on Record: 59

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		144		11		9		10		9		13		12		14		16		15		14		11		10

Average Number of Clear Days

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		100		8		8		8		8		7		7		7		7		9		12		9		10

Average Possibility of Sunshine

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		63		54		58		62		66		66		70		68		66		64		63		59		54

Average Number of Cloudy Days

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		160		16		14		15		13		14		11		12		12		12		12		13		15

Average Number of Partly Cloudy Days

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		106		7		6		8		9		10		12		12		12		9		7		8		6

Average Percent Chance - Clear Skies

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		22.7		25.4		24.7		24.7		22.5		19.3		15.2		14.6		16.9		24.1		30.2		28.9		25.8

Average Percent Chance - Scattered Clouds

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		10.7		7.3		7.5		8		9.7		11.4		15.4		16.4		15.9		12		9.1		8.2		7.3

Average Percent Chance - Few Clouds

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		12.6		10.5		11.3		11.4		11.9		12.5		14.9		14.6		14.4		14.1		13.2		11.7		10.5

Average Percent Chance - Broken Clouds

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		19.3		14.9		14.6		15.9		18.6		21.5		25.3		27.3		25.1		20.2		16.5		16.1		15.6

Average Percent Chance - Overcast Skies

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		34.7		41.8		41.8		40		37.3		35.2		29.3		27		27.7		29.5		30.9		35.1		40.9

Average Total Sky Cover

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		54.9		57		55.7		57.7		55.7		57.3		57.9		55.7		53		51.9		47.9		52.3		55.3

Average Opaque Sky Cover

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		48		51.6		49		51.1		47.3		50.3		48.7		47.7		45		46		43.2		45.5		49.7

Average Wind Speed

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mph		7.8		8.3		8.7		9.3		9.1		8.1		7.4		7		6.5		6.9		7		7.6		7.9

Highest Reported Hourly Wind Speed

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mph		51		38		44		48		46		46		45		47		48		46		37		36		51

Average Percent Chance - Calm Winds

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		8.4		6.8		6.8		6		6		6.4		7.4		8.8		10.4		10.2		11.6		11.3		9.4

Average Primary Wind Direction

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
°		167.1		138		128.6		153.1		225.5		239.9		241.4		240.5		164		97.3		88.5		137.1		148.1

Average Secondary Wind Direction

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
°		183.6		199.9		211.5		194.3		176.7		145.8		180.4		191		173.8		161.3		187		177.1		206

Average Wind Vector Direction

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
°		243.7		286.8		298.5		274		243.5		225.1		214.1		216.3		190.7		155.5		264.8		274.8		283.3

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4		2.1		2.9		3.9		4.8		5.5		5.8		5.7		5		4.4		3.5		2.4		1.9

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.6		0.9		1.1		1.6		2		2.3		2.5		2.4		2.1		1.7		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		4.4		3.3		3.8		4.5		4.9		5		5.1		5.1		4.9		4.9		4.7		3.6		3.2

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.4		3.3		3.9		4.3		4.6		4.8		5.1		5		4.6		4.8		4.8		3.7		3.3

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4		2.1		2.9		3.9		4.8		5.5		5.8		5.7		5		4.4		3.5		2.4		1.9

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		0.9		1.2		1.6		2.1		2.4		2.5		2.5		2.2		1.7		1.3		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		5.1		3.7		4.5		5.4		5.7		5.7		5.7		5.4		5.5		5.6		6.1		4.5		3.7

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.6		3.9		4.9		5.7		6.2		6.3		6.4		5.7		5.7		6		7		5		4

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.3		1.7		2.1		3.4		4		3.5		5.1		5		4.5		3.9		2.8		1.9		1.4

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.5		0.8		1.1		1.4		1.8		2.2		2.3		2.3		2		1.5		0.9		0.8		0.7

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.5		2.5		2.5		3.8		4		3.3		4.5		4.5		4.3		4.2		3.4		2.5		2.1

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2.9		2.3		2.1		3.3		3.2		2		3.8		3.9		3.6		3.8		3		2.3		1.9