ROCKLAND, MAINE

Average Temperature

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		7.3		-5.1		-4.3		0.1		5.8		11.1		16.2		19.3		18.8		14.8		9.6		4		-2.6

Average High Temperature

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		12.8		0.3		1.1		5.1		11.1		16.8		22.1		25.2		24.8		20.6		15.2		8.8		2.3

Average Low Temperature

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		1.8		-10.3		-9.8		-4.8		0.4		5.3		10.3		13.4		12.8		8.9		3.9		-0.8		-7.5

Highest Recorded Temperature

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		37.2		12.8		15.6		25		29.4		33.3		36.7		35.6		37.2		35		31.1		22.2		15.6

Lowest Recorded Temperature

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-34.4		-27.8		-34.4		-24.4		-12.2		-5.6		-2.2		4.4		3.3		-4.4		-8.9		-16.7		-26.7

Average Number of Days Above 90F/32C

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3.3		---		---		---		---		0.1		0.6		1.2		1.1		0.3		---		---		---

Average Number of Days Below 32F/0C

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		153.9		29.3		27.1		26.5		14.4		2.4		---		---		---		0.8		7.4		18		27.8

Average Number of Days Below 0F/-17C

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		10.8		4.8		3.6		0.5		---		---		---		---		---		---		---		---		1.8

Average Precipitation

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1321		100		111		141		97		118		109		91		63		103		102		134		153

Average Number of Days With Precipitation

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		133		12		10		11		12		12		12		10		10		10		10		12		12

Most Reported Precipitation in a Month

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		300		265		209		300		204		207		223		267		137		247		250		236		223

Least Reported Precipitation in a Month

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		4		18		43		16		26		23		21		10		6		11		4		50		38

Most Precipitation Reported in a Day

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		157.7		53.9		59.7		81.5		66.5		67.1		106.2		117.3		73.9		157.7		72.6		107.7		80.5

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

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		84		8		7		7		7		8		7		6		6		6		6		8		8

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

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		34		3		3		3		3		3		2		2		2		3		2		4		4

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

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		13		1		1		1		1		1		1		1		1		1		1		2		1

Average Snowfall

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		151.6		36.3		42.9		32.3		5.6		0.2		---		---		---		---		0.2		5.1		29

Most Snow Reported in a Month

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		123.4		94.7		100.6		123.4		22.9		3.8		---		---		---		---		5.1		35.6		117.6

Heating Degree Days

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2595		552.2		483.3		392.2		211.7		73.9		6.7		---		0.6		20.6		113.9		263.3		476.7

Cooling Degree Days

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		122.2		---		---		---		---		1.1		17.8		49.4		43.3		10		0.6		---		---

Growing Degree Days

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		924.1		---		---		---		---		34.4		185		287.6		273.8		143.3		---		---		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.8		9.9		11		12.5		14		15.4		16		15.7		14.5		13		11.4		10.1		9.5

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13		6.1		9.5		13.4		16.3		18.2		19.7		19.4		18.2		14.3		9.7		6.1		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		5.3		2.3		3.2		4.8		6.8		8.2		8.9		8.5		7.1		5.5		3.9		2.7		2

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.1		12.2		15.3		17.2		16.9		16.7		17.1		17.3		17.9		16.6		13.6		10.4		9.5

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.3		12.4		16		17.5		16.6		16.1		17.1		17.4		18.6		16.8		13.5		10.5		10.5

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		6.1		9.5		13.4		16.3		18.2		19.7		19.4		18.2		14.3		9.7		6.1		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		5.5		2.4		3.5		5.1		7		8.4		9		8.7		7.5		5.8		4		2.7		2.1

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.8		14.6		17.8		19.4		20.1		19.4		19.3		20		20.4		19.1		17.3		12.7		12.8

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.7		15.5		19.4		20.6		22.2		21.5		21.7		23.2		23.4		20.9		18.6		13.5		15.1

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.9		5.4		8.2		11.7		13		15.2		15.6		16.6		15.4		12.4		7.9		5.2		4.1

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		2.1		2.9		4.6		6.2		7.8		8.5		8		6.6		5.1		3.5		2.5		1.8

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		10		12.1		14.4		13.1		13.9		13.7		14.8		15		13.9		10.4		8.3		7

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.8		9.7		12		13.6		10.6		11.1		10.6		12.6		13.3		12.6		9.1		7.7		7