GREENVILLE, RHODE ISLAND

Average Temperature

Years on Record: 33

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		9.6		-2.7		-1.9		2.3		8.5		14		18.8		21.8		20.7		16.7		11.6		5.7		-1.1

Average High Temperature

Years on Record: 33

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		15.1		2.1		3.1		7.3		14.5		20.5		25.2		27.8		26.6		22.6		17.6		10.6		3.6

Average Low Temperature

Years on Record: 33

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		3.9		-7.4		-7.1		-2.8		2.4		7.5		12.6		15.9		14.9		10.9		5.7		0.7		-5.6

Highest Recorded Temperature

Years on Record: 33

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		38.9		18.9		21.7		29.4		30.6		33.9		36.7		38.9		38.3		37.2		30		27.8		19.4

Lowest Recorded Temperature

Years on Record: 33

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-27.2		-26.1		-27.2		-20		-11.1		-1.7		1.1		6.7		2.2		-1.7		-6.7		-12.8		-25

Average Number of Days Above 90F/32C

Years on Record: 33

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		7.7		---		---		---		---		0.2		1.9		3.4		1.9		0.2		---		---		---

Average Number of Days Below 32F/0C

Years on Record: 33

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		133.2		28		25.7		23.9		9.1		0.9		---		---		---		0.5		4.4		14.4		26.4

Average Number of Days Below 0F/-17C

Years on Record: 33

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2.6		1.3		0.7		0.1		---		---		---		---		---		---		---		---		0.6

Average Precipitation

Years on Record: 33

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1172		83		86		93		99		93		85		85		107		101		95		137		109

Average Number of Days With Precipitation

Years on Record: 33

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		92		7		7		7		8		9		9		8		8		7		6		9		7

Most Reported Precipitation in a Month

Years on Record: 33

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		338		172		162		237		170		217		209		195		338		249		264		251		256

Least Reported Precipitation in a Month

Years on Record: 33

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		6		7		23		43		19		14		6		7		34		13		11		41		13

Most Precipitation Reported in a Day

Years on Record: 33

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		147.6		67.3		81.3		60.5		63.8		76.2		68.6		82.3		119.4		147.6		124.5		118.4		59.4

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

Years on Record: 33

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		72		6		5		6		7		7		7		5		6		5		5		7		6

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

Years on Record: 33

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		33		3		3		3		3		2		2		2		3		2		3		4		3

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

Years on Record: 33

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		14		1		1		1		1		1		1		1		1		1		1		2		2

Average Precipitable Water

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm.		1.9		1		0.9		1.1		1.4		2		2.8		3.2		3.1		2.6		1.8		1.4		1.1

Average Snowfall

Years on Record: 33

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		86.9		20.8		27.2		17.3		1.5		---		---		---		---		---		---		3.3		16.8

Most Snow Reported in a Month

Years on Record: 33

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		86.4		54.6		59.7		84.8		15.5		---		---		---		---		---		1.3		16.5		86.4

Average Relative Humidity

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		64.7		61.9		55.8		58.1		55.9		64.4		68.6		71.8		71.1		73.1		68.1		64.9		62.8

Heating Degree Days

Years on Record: 33

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2136.7		479.4		416.1		327.8		142.2		32.8		2.2		---		---		12.8		77.2		217.2		428.9

Cooling Degree Days

Years on Record: 33

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		300		---		---		---		1.1		11.1		55.6		111.7		86.7		29.4		4.4		---		---

Growing Degree Days

Years on Record: 33

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1336.4		---		---		---		---		124		265		365.1		332.4		200		49.9		---		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.7		10.1		11.1		12.5		13.9		15.1		15.7		15.4		14.3		12.9		11.5		10.3		9.7

Average Total Sky Cover

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		52.2		55.9		51.9		56		55.3		53.7		50.3		47.1		46.2		46.8		50.7		56.8		56.7

Average Opaque Sky Cover

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		46.4		50.1		46.2		50.9		50.7		48.3		45.5		41		40		38.7		44		50.2		50.1

Average Wind Speed

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
km/h		10.7		12.9		12.9		12.7		12.6		11		9		8		7.8		8.4		9.5		11.2		12.8

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.3		6.5		9.7		13.1		16.1		18.6		19.7		20.4		18		14.8		10.6		6.9		5.5

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.5		2.6		3.5		5.2		7		8.3		8.9		8.4		7.3		5.7		4.1		2.9		2.3

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.2		11.9		14.4		16		16.5		17.1		17.2		18.2		17.6		16.8		14.8		11.2		10.4

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.1		12.1		14.8		15.7		15.6		16.3		16.9		18.8		17.6		16.9		14.7		11.4		10.7

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.3		6.5		9.7		13.1		16.1		18.6		19.7		20.4		18		14.8		10.6		6.9		5.5

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.7		2.7		3.8		5.4		7.2		8.5		9.1		8.7		7.6		6		4.2		3		2.3

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18.1		15.1		18.7		18.3		19.8		19.7		19.6		20.7		20.2		19.5		18.1		13.9		13.8

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.9		16.2		20.8		19.3		21.3		21.6		21.8		24.3		22.5		21.3		19.7		15		14.8

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.2		5.5		7.7		11.6		12.7		14.8		16.3		18		16.2		12.6		9		5.5		4.3

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.1		2.3		3		4.9		6.5		7.9		8.5		7.8		6.8		5.2		3.6		2.7		2

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.2		9.2		10.8		13.7		12.7		13.5		14.3		16.1		15.8		13.8		11.7		8.2		7.1

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.6		8.8		9.6		12.3		9.6		10.2		11.4		14.6		14.3		12.3		10.6		7.5		6.6