GREENBELT, MARYLAND

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Elevation: 120 feet Latitude: 39 02N Longitude: 076 53W

WEATHER

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Daily Averages

Hourly Data

CURRENT CONDITIONS

Sunrise/Set

07:34 am

06:07 pm
Local Time
10:34 pm EDT
31 October, 2024

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MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

[ °C ] °F

TEMPERATURE

Average Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		55.4		32.9		35.7		43.7		53.7		63.4		72.9		77.3		75.8		68.4		56.4		46.8		36.9

Average High Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		65.8		42.2		45.4		53.8		64.9		74.4		83.6		87.7		86.1		79		67.7		57.3		46

Average Low Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		45.1		23.7		26.1		33.5		42.5		52.4		62.3		66.9		65.5		57.7		45.1		36.3		27.9

Highest Recorded Temperature

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		101		79		76		85		93		95		99		101		100		100		92		85		73

Lowest Recorded Temperature

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		-14		-14		-9		2		18		27		38		42		42		30		19		10		-7

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		0.5		---		---		---		---		---		---		0.3		0.2		---		---		---		---

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		27.6		---		---		---		0.3		1.1		5.5		11.3		7.2		2.1		0.1		---		---

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		105.5		---		0.1		0.4		2.7		9.1		21.6		27.9		27.1		13.7		2.7		0.2		---

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		166.2		0.2		0.4		2.9		9.2		21.1		28.4		30.9		30.7		26.3		12.4		3.1		0.5

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		222.9		2.1		2.8		8.7		19.8		28.9		29.9		31		31		29.7		24.4		11.8		2.8

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		278.9		7.1		8.6		18.4		27.6		31		30		31		31		30		30.6		22.8		10.8

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		329.2		17.4		18.9		28		29.9		31		30		31		31		30		31		28.9		22

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		342.7		31		28		31		30		30.9		26.1		21.5		23.7		28.6		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		270.7		31		28		30.9		29.6		25.1		10.2		3.4		5.3		17.3		29.2		29.8		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		213		30.8		27.9		30.1		24.1		11.8		1.4		---		0.3		6		22		28		30.7

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		152.9		29.8		26.3		24		11.8		2.4		---		---		---		0.5		9.7		20.1		28.3

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		97.8		25.3		21.7		14		3		0.1		---		---		---		---		1.5		10		22.1

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		24.7		10.5		6.5		1.9		0.1		---		---		---		---		---		---		0.5		5.2

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		4.2		2.6		0.6		0.1		---		---		---		---		---		---		---		---		0.8

Average Number of Days Below 0F/-17C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		0.8		0.6		0.1		---		---		---		---		---		---		---		---		---		---

PRECIPITATION

Average Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		41.8		2.9		2.6		3.7		3.4		4.3		3.7		3.9		3.3		4.1		3.7		3.2		3.1

Average Number of Days With Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		113.7		9.4		8.4		10.2		10.6		10.8		9.9		10.2		8.9		8.6		8.2		8.7		9.8

Most Precipitation Reported in a Day

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		6.6		2.6		1.9		3.4		2		2.2		5.6		4.5		6.6		5.1		3.6		3		2.5

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		74.6		6.1		5.3		6.6		7		7.6		6.6		6.9		5.9		6		5.3		5.4		5.9

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

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		74		7		6		7		7		7		6		6		6		5		5		6		6

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

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		27		2		2		2		2		3		3		2		3		2		2		2		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		29.1		1.9		1.7		2.5		2.6		2.9		2.9		2.6		2		2.8		2.5		2.5		2.2

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

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		10.8		0.5		0.6		0.9		0.6		1.3		0.9		1.1		0.8		1.4		1.1		0.8		0.8

PRECIPITATION - RAIN

Most Rain Reported in a Month

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		56.8		7.5		6.2		6.6		7.5		7.2		10.9		9.7		13.7		13.3		8.1		7.3		6.9

Least Rain Reported in a Month

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		29.3		0.2		0.4		1.4		0.9		1.5		1.2		1.1		---		0.2		---		0.5		0.1

PRECIPITATION - SNOW

Average Snowfall

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		15.2		6		4.3		1.3		0.1		---		---		---		---		---		---		0.6		2.9

Average Number of Days With Snow

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6.5		2.4		1.8		0.6		0.1		---		---		---		---		---		---		0.2		1.4

Most Snow Reported in a Month

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		53.3		25.7		20.5		21.5		4		---		---		---		---		---		---		8.5		20

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		4.8		1.8		1.4		0.4		---		---		---		---		---		---		---		0.1		1.1

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		2.2		0.8		0.7		0.2		---		---		---		---		---		---		---		0.1		0.4

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		0.9		0.3		0.4		0.1		---		---		---		---		---		---		---		---		0.1

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		0.2		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		14.6		4.8		5.1		1.2		---		---		---		---		---		---		---		0.3		3.2

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		8.2		2.7		3.1		0.6		---		---		---		---		---		---		---		0.2		1.6

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		5.4		2		2.2		0.2		---		---		---		---		---		---		---		0.1		0.9

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		1.6		0.5		0.9		---		---		---		---		---		---		---		---		---		0.2

DEGREE DAYS

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4727		993		819		664		354		129		14		---		2		49		286		547		870

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1237		---		---		2		15		80		253		381		336		150		20		1		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3831		6		6		47		168		418		688		846		800		551		227		64		10

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		10.3		11.2		12.4		13.7		14.8		15.4		15.1		14.1		12.9		11.6		10.5		10

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		3.9		2		2.8		3.7		4.7		5.3		5.6		5.6		5		4.3		3.4		2.2		1.7

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		0.8		1.1		1.5		2		2.3		2.5		2.4		2.1		1.7		1.2		0.9		0.7

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.3		3.1		3.7		4.3		4.7		4.9		4.9		5		4.8		4.7		4.5		3.4		2.9

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.2		3.1		3.7		4.1		4.4		4.7		4.8		4.9		4.6		4.6		4.6		3.5		2.9

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.9		2		2.8		3.7		4.7		5.3		5.6		5.6		5		4.3		3.4		2.2		1.7

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		0.8		1.2		1.6		2.1		2.4		2.5		2.5		2.2		1.7		1.3		0.9		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		3.7		4.6		5.3		5.4		5.8		5.7		5.4		5.4		5.5		5.7		4.3		3.4

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.4		3.9		5.2		5.5		5.6		6.4		6.6		5.8		5.6		6		6.4		4.8		3.6

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.2		1.7		2.2		3		4		3.5		4.7		5		4.4		3.7		2.7		1.6		1.3

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		1.4		1.9		2.2		2.3		2.3		2		1.5		1		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		3.4		2.5		2.8		3.4		4		3.3		4.2		4.5		4.2		3.9		3.4		2.2		2

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2.8		2.3		2.4		2.7		3.3		2		3.4		3.9		3.6		3.4		3		1.9		1.8

NEARBY - MAP

NEARBY - LIST

Beltsville, Maryland (0 mi / 0 km)
College Park, Maryland (4 mi / 8 km)
Laurel, Maryland (4 mi / 7 km)
University Park, Maryland (5 mi / 8 km)
Bowie, Maryland (6 mi / 10 km)

GEOBA.SE

Greenbelt, Maryland