PORTLAND, MAINE

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Elevation: 7 feet Latitude: 43 39N Longitude: 070 19W

WEATHER

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CURRENT CONDITIONS

Sunrise/Set

05:36 am

07:40 pm
Local Time
5:57 am EDT
28 April, 2024

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MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

[ °C ] °F

TEMPERATURE

Average Temperature

Years on Record: 91

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		45.7		22.1		24		32.8		43.2		53.3		62.7		68.5		67.3		59.6		49.1		39		27.2

Average High Temperature

Years on Record: 91

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		55		31.1		33.3		41.2		52.3		63		72.5		78.3		77		69.4		58.9		47.3		35.7

Average Low Temperature

Years on Record: 91

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		36.5		13.2		14.8		24.4		34.1		43.6		52.9		58.7		57.5		49.7		39.4		30.7		18.8

Highest Recorded Temperature

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		103		67		64		88		92		94		98		100		103		95		88		74		71

Lowest Recorded Temperature

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		-39		-26		-39		-21		8		23		33		40		33		23		15		3		-21

Average Heat Index Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		46.8		23.1		26.2		33.7		44.3		53.8		63.4		69.3		67.9		60.4		49.3		39.8		29.2

Average Wind Chill Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		43.3		14.9		18.4		27.1		40.4		52.4		63.2		69		67.7		60.1		47.4		35.3		22.3

Average Number of Days Above 90F/32C

Years on Record: 91

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4.7		---		---		---		---		0.3		1		1.8		1.3		0.4		---		---		---

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		36.1		---		---		---		0.3		1.7		6.9		13.1		10.9		2.9		0.3		---		---

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		100.5		---		---		0.2		1.2		6.8		19.5		27.7		27.7		14.3		2.7		0.3		0.1

Average Number of Days Above 65F/18C

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		131		---		---		---		3		13		25		30		30		22		7		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		159.8		0.1		0.1		1		6.4		19.8		28		30.8		30.8		27.6		12.7		2.4		0.3

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		218.8		1		1.1		5.2		18.7		29.3		29.9		31		31		30		27		11.8		2.8

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		280.8		5.7		7.5		18.2		28.5		31		30		31		31		30		30.9		24.9		12.1

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		364.3		31		28		31		30		31		29.9		30.8		30.6		30		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		331		31		28		31		30		30.7		26.1		16.9		18		27.4		30.9		30		31

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		258.5		31		28		31		29.8		25.9		7.4		1		2.3		13.7		27.8		29.6		31

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		197.4		30.9		28		30.7		23.5		7.6		0.2		---		---		2.9		17.7		25.4		30.4

Average Number of Days Below 32F/0C

Years on Record: 91

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		148.5		29.5		26.5		24.9		12.1		1.6		---		---		---		0.6		7.3		18		27.9

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		64.6		21.7		17.3		8.3		0.4		---		---		---		---		---		---		2.4		14.5

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		27.6		12		8.4		2.2		---		---		---		---		---		---		---		0.1		4.9

Average Number of Days Below 5F/-15C

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		23		9		7		2		---		---		---		---		---		---		---		---		5

Average Number of Days Below 0F/-17C

Years on Record: 91

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		10.3		4.8		3.1		0.5		---		---		---		---		---		---		---		---		1.8

PRECIPITATION

Average Precipitation

Years on Record: 91

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		44.2		3.8		3.6		4		4		3.5		3.4		3.1		2.9		3.4		3.8		4.5		4.1

Average Number of Days With Precipitation

Years on Record: 91

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		131		11		10		12		12		12		12		10		10		9		10		11		12

Most Reported Precipitation in a Month

Years on Record: 91

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		15.2		12.3		9		11.2		9.9		12.3		10.5		8.6		15.2		10.8		14.8		13.5		9.7

Least Reported Precipitation in a Month

Years on Record: 91

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		---		0.3		---		0.8		0.3		0.5		0.7		0.6		0.3		0.3		0.1		0.6		1

Most Precipitation Reported in a Day

Years on Record: 91

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		9.6		3.6		3.8		3.5		5.2		3.5		4.3		4.2		7.8		7.5		9.6		5		3.5

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		79.5		6.6		5.8		7.5		7		7.2		6.8		6.8		5.1		5.6		6.5		7.4		7.2

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

Years on Record: 91

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		78		7		6		7		7		7		7		6		5		6		6		7		7

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

Years on Record: 91

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		30		3		3		3		3		2		2		2		2		2		2		3		3

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		30.1		2.4		2.1		2.9		2.9		2.6		2.3		2.6		1.6		2.3		2.7		3.1		2.6

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

Years on Record: 91

		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

Average Precipitable Water

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		0.7		0.3		0.3		0.4		0.5		0.7		1.1		1.2		1.2		0.9		0.7		0.5		0.4

PRECIPITATION - RAIN

Average Number of Rainy Days

Years on Record: 53

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		129		11		10		11		12		12		11		10		9		9		9		12		12

Average Number of Days With Thunderstorms

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		16		---		---		---		---		2		4		4		4		1		1		---		---

Most Rain Reported in a Month

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		66.3		11.9		7.1		10		9.9		9.6		6.8		7.5		15.2		9.8		12.3		13.5		9.7

Least Recorded Rainfall

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		26.3		0.8		---		0.8		1		0.5		0.8		0.6		0.5		0.3		0.6		0.9		1

PRECIPITATION - SNOW

Average Snowfall

Years on Record: 91

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		71.4		19.7		17.4		12.8		3.2		0.1		---		---		---		---		0.2		3.2		14.8

Average Number of Days With Snow

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		27.7		7.9		6.1		5.1		1		---		---		---		---		---		---		1.5		6.1

Most Snow Reported in a Month

Years on Record: 91

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		62.4		62.4		61.2		49		15.9		7		---		---		---		---		3.8		24.3		54.8

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		15.9		4.8		3.3		3.1		0.6		---		---		---		---		---		---		0.7		3.4

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		7.4		2.2		1.5		1.6		0.3		---		---		---		---		---		---		0.1		1.7

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		4		1.4		0.8		0.8		0.2		---		---		---		---		---		---		0.1		0.7

Avg. No. of Days w/Snowfall Above 10in/25cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		0.7		0.2		0.2		0.1		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		69.8		22.2		19.9		13.7		1.3		---		---		---		---		---		---		1.4		11.3

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		53.9		17.2		16.7		10.9		0.9		---		---		---		---		---		---		0.5		7.7

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		41.1		13.8		13.3		8.5		0.4		---		---		---		---		---		---		0.2		4.9

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		21.5		7.3		7.3		5.5		0.1		---		---		---		---		---		---		---		1.3

HUMIDITY

Average Relative Humidity

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		69.9		65.1		61.2		64.1		64.7		70.4		74.7		75.2		75.3		76.3		73.4		70.4		67.1

Average Morning Relative Humidity

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		79		75		75		74		73		75		78		80		83		86		84		82		78

Average Evening Relative Humidity

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		62		62		59		60		58		61		63		62		63		64		64		66		65

Average Dew Point

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		36.6		12.8		14.7		22		31.9		43		53.6		59.7		58.7		52		40.3		30.1		19.5

DEGREE DAYS

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		7106		1324		1106		976		630		353		106		17		28		176		503		767		1121

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		360		---		---		---		---		7		57		144		120		30		1		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2124		---		---		2		25		151		403		592		556		310		73		10		1

BAROMETER

Average Sea Level Pressure

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
InHg		30		30		30		30		30		30		29.9		29.9		30		30		30.1		30		30

SKY CONDITIONS

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.7		9.9		11		12.5		14		15.3		16		15.6		14.4		12.9		11.5		10.2		9.5

Average Number of Days With Fog

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		167		10		9		12		14		15		16		17		17		16		15		14		12

Average Number of Clear Days

Years on Record: 53

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		101		10		9		9		7		6		7		7		9		10		10		8		9

Average Possibility of Sunshine

Years on Record: 53

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		57		56		59		56		54		55		59		63		63		62		58		48		53

Average Number of Cloudy Days

Years on Record: 53

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		165		14		12		15		16		15		13		13		11		12		13		15		15

Average Number of Partly Cloudy Days

Years on Record: 53

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		99		7		7		7		7		10		10		11		11		8		8		7		7

Average Percent Chance - Clear Skies

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		35.2		38.2		38.5		35.1		32.5		29.5		31		33.8		37.3		38.6		37.4		34.1		36.2

Average Percent Chance - Scattered Clouds

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		5.2		4.1		4.3		4.1		4.6		5.3		6.6		7.3		7.2		5.8		4.7		4.4		3.9

Average Percent Chance - Few Clouds

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		9.3		7.9		8.5		7.6		7.6		9.3		10.6		12.6		12.5		10.1		8.7		8.5		8.1

Average Percent Chance - Broken Clouds

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		11.7		9.3		9.6		9.6		11		13.4		14.5		15.2		14.5		12.4		11.4		10.3		9.4

Average Percent Chance - Overcast Skies

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		38.6		40.5		39.1		43.5		44.2		42.6		37.3		31.2		28.6		33.1		37.9		42.7		42.4

Average Total Sky Cover

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		52.4		54.4		51.8		55.3		56.8		55.4		54		49.4		44.5		47		50.7		56.2		53.6

Average Opaque Sky Cover

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		48		51.2		47.4		51.8		51.8		50.8		47.8		43.1		39.4		43		47.3		53.2		50.4

WIND

Average Wind Speed

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mph		8.1		8.3		8.7		9.4		9.4		8.6		7.6		7		6.9		7.3		7.9		8.2		8.3

Highest Reported Hourly Wind Speed

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mph		57		38		45		41		43		39		38		37		57		33		43		49		44

Average Percent Chance - Calm Winds

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		9.8		9.2		7.9		7.2		7.5		8.4		10.1		11.6		12.7		12		10.9		9.6		9.9

Average Primary Wind Direction

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
°		255.6		232.6		276.9		286.8		250.4		222.2		257.1		266.1		254.8		258.3		254.8		248.9		259.9

Average Secondary Wind Direction

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
°		245		234.7		212.4		185.1		271.3		228		248.9		271		240.9		271.4		265.3		243.8		265.7

Average Wind Vector Direction

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
°		269.9		301.6		308		308.7		268.1		229.1		232.3		231.1		240.3		251.7		279.1		291.3		300.4

SOLAR RADIATION

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.6		1.7		2.7		3.8		4.6		5		5.5		5.4		5		4		2.7		1.7		1.4

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.5		0.6		0.9		1.3		1.9		2.3		2.5		2.4		2		1.5		1.1		0.7		0.6

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.2		3.4		4.3		4.9		4.7		4.6		4.8		4.8		5		4.6		3.8		2.9		2.7

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.3		3.5		4.5		5		4.7		4.4		4.7		4.8		5.1		4.6		3.7		2.9		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		3.6		1.7		2.7		3.8		4.6		5		5.5		5.4		5		4		2.7		1.7		1.4

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.5		0.7		1		1.4		1.9		2.3		2.5		2.4		2.1		1.6		1.1		0.8		0.6

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		4.1		5.1		5.5		5.7		5.4		5.4		5.6		5.9		5.2		4.6		3.5		3.9

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.5		4.4		5.6		5.9		6.4		6		6		6.6		6.9		5.6		4.9		3.7		4.6

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.1		1.5		2.2		3.3		3.7		4.3		4.6		4.6		4.2		3.5		2.1		1.5		1.2

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.4		0.6		0.8		1.2		1.7		2.2		2.4		2.2		1.8		1.4		1		0.7		0.5

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.4		2.8		3.3		4.1		3.7		3.9		4		4.1		4.1		3.9		2.8		2.4		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		3.1		2.7		3.2		3.9		3.1		3.1		3.4		3.6		3.5		3.6		2.4		2.3		2.1

NEARBY - MAP

NEARBY - LIST

Portland - East End, Maine (3 mi / 5 km)
Biddeford, Maine (12 mi / 19 km)
West Buxton, Maine (15 mi / 24 km)
Lake Arrowhead, Maine (17 mi / 28 km)
New Gloucester, Maine (17 mi / 27 km)

GEOBA.SE

Portland, Maine