POQUOSON, VIRGINIA

Average Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		16.6		5.6		6.9		10.8		16.1		20.3		25.1		27.2		26.3		23.3		17.4		12.7		7.4

Average High Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		21.3		9.9		11.8		16.3		21.6		25.4		29.9		31.6		30.4		27.5		22		17.3		11.7

Average Low Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		11.9		1.3		2.1		5.3		10.4		15.1		20.1		22.7		22.1		19.1		12.7		8.1		3.2

Highest Recorded Temperature

Years on Record: 57

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		40		25		27		32		35		36		38		39		40		37		35		29		26

Lowest Recorded Temperature

Years on Record: 57

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-19		-19		-12		-11		-2		1		6		12		10		6		-3		-6		-13

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		---		---		---		---		---		0.3		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		33.9		---		---		---		0.3		0.8		8.8		12.7		8		3.4		---		---		---

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		124.2		---		---		0.6		5.7		12.5		23.8		30.4		28.9		19		2.7		0.5		---

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		195.9		0.2		1.2		6.2		15.6		26.7		29.5		31		31		29.4		18		6.1		1.1

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		263.6		6.2		6.9		16.2		26		30.5		30		31		31		30		29.8		19.4		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		319		14.9		17.1		26.6		29.7		31		30		31		31		30		31		28		18.7

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		354.9		25.5		26.3		30.1		30		31		30		31		31		30		31		30		29

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		295.7		31		28		31		30		29.9		18		6.5		7.6		21.7		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		222.8		31		28		31		27		17.1		2.2		---		0.1		3.5		23		28.9		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		158.3		29.8		27.1		27.6		14		2.5		---		---		---		---		8.7		19.6		28.9

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		84		23.2		20.4		13.1		0.8		---		---		---		---		---		0.4		6.9		19.3

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		32.9		12		9.2		3.4		---		---		---		---		---		---		---		1.1		7.2

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		1.9		1.2		0.1		0.1		---		---		---		---		---		---		---		---		0.4

Average Number of Days Below 10F/-12C

Years on Record: 57

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

Average Precipitation

Years on Record: 57

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1110		80		80		100		70		90		80		120		120		100		70		70		70

Average Precipitable Water

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm.		2.4		1.3		1.2		1.5		1.9		2.5		3.5		4.1		3.9		3.3		2.3		1.8		1.4

Average Number of Rainy Days

Years on Record: 57

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		108		10		9		10		9		10		9		11		9		7		7		8		9

Average Number of Days With Thunderstorms

Years on Record: 45

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		40		1		1		2		3		5		6		9		7		3		1		1		1

Most Rain Reported in a Day

Years on Record: 57

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		160		60		50		80		70		110		140		90		120		160		90		110		60

Most Rain Reported in a Month

Years on Record: 57

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1700		210		150		270		210		330		260		310		300		370		310		170		190

Least Rain Reported in a Month

Years on Record: 57

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		700		10		---		20		---		10		---		10		10		---		---		---		10

Average Snowfall

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		23		7		7		3		---		---		---		---		---		---		---		---		3

Average Number of Days With Snow

Years on Record: 48

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

Deepest Snow Cover Reported

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		48		33		33		48		---		---		---		---		---		---		---		---		33

Most Snow Reported in a Day

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		141		30		28		16		---		---		---		---		---		---		4		30		30

Most Snow Reported in a Month

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		127		41		54		54		16		---		---		---		---		---		---		4		55

Average Relative Humidity

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		72.1		70.1		68.1		66.6		67.7		72.1		74		74.8		76.5		76.7		74.9		72.3		71.4

Average Morning Relative Humidity

Years on Record: 10

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		76		72		72		71		74		77		76		80		83		81		79		77		73

Average Evening Relative Humidity

Years on Record: 10

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		57		56		54		53		53		58		56		60		63		61		57		57		57

Average Dew Point

Years on Record: 10

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		9		-1		---		2		7		13		17		21		20		16		10		5		---

Average Wet Bulb

Years on Record: 10

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		12		2		3		6		11		15		20		22		22		18		13		8		3

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2958		710		574		423		171		39		2		---		---		6		112		314		608

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1836		---		---		4		46		147		363		491		443		272		58		11		1

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5144		30		38		128		332		574		811		956		908		716		412		189		50

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		13.6		14.7		15.2		14.9		14		12.8		11.6		10.6		10.1

Average Number of Days With Fog

Years on Record: 45

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		164		14		12		13		11		14		13		15		16		15		15		13		13

Average Possibility of Clouds

Years on Record: 10

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		52		57		57		54		50		53		48		52		54		50		43		50		55

Average Total Sky Cover

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		54.7		58.1		56.9		57.1		54.6		56		56		54.1		54.2		54.3		48.4		52		54.2

Average Opaque Sky Cover

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		48.8		52		49		52		48.7		49.4		49.8		47.7		48.1		49		44.1		46.9		49.5

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.7		8.1		10.9		15.2		19.3		21.9		23.3		22.5		20.6		17		13.6		9.3		7.4

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.6		3.2		4.2		5.5		6.8		8		8.3		8.2		7.1		5.8		4.2		3.3		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		17.2		12.3		14.2		17.7		19.6		20		20.3		20		19.9		18.8		18.1		13.9		12.1

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18.1		12.8		14.5		17.6		20.1		21.3		22.4		21.6		21.1		19.3		19.1		14.9		12.7

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.7		8.1		10.9		15.2		19.3		21.9		23.3		22.5		20.6		17		13.6		9.3		7.4

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.1		3.3		4.4		5.9		7.5		8.6		9.1		8.8		7.8		6.4		4.7		3.6		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		20.1		14.5		16.9		20.6		22.7		23.5		22.1		22		22.4		21.8		22.5		17.5		15

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		23.2		16		18.7		22.2		26		29		26.6		26.2		26		24.5		26		20.2		16.9

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.6		6.4		8.2		12.9		15.1		15.2		19.5		19.2		16.7		14.3		11.7		7.1		5.5

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5		3		3.8		5		6		6.8		7.8		7.5		6.4		5.1		3.3		2.8		2.5

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.4		8.9		9.8		14.5		15		14		17.2		17.2		16.1		15.4		14.8		9.7		8

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.7		8.1		8.3		12.7		12.1		10.1		15.7		15.8		14		13.8		14.2		8.9		7.1