HERNDON, GEORGIA

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Elevation: 85 meters Latitude: 32 53N Longitude: 082 12W

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CURRENT CONDITIONS

Sunrise/Set

06:54 am

08:01 pm
Local Time
6:39 am EDT
18 April, 2024

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MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

[ °F ] °C

TEMPERATURE

Average Temperature

Years on Record: 53

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		18		8.2		9.7		13.6		18.1		22.2		25.7		27.1		26.5		23.9		18.6		13.5		9

Average High Temperature

Years on Record: 53

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		24.4		14.4		16.2		20.5		24.9		28.9		31.9		33.2		32.5		30		25.2		20.3		15.4

Average Low Temperature

Years on Record: 53

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		11.6		1.8		3.2		6.9		11.1		15.6		19.4		21		20.5		17.9		11.9		6.7		2.7

Highest Recorded Temperature

Years on Record: 53

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		40.6		27.2		28.9		32.2		35		36.1		40		40.6		40.6		37.8		35		31.7		28.9

Lowest Recorded Temperature

Years on Record: 53

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-18.3		-18.3		-12.8		-12.2		-1.7		3.9		6.7		11.7		12.8		3.3		-6.1		-10		-14.4

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		2.7		---		---		---		---		---		0.5		1.3		0.8		0.1		---		---		---

Average Number of Days Above 90F/32C

Years on Record: 53

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		72.2		---		---		---		0.7		5.6		15.6		21.7		18.8		9.3		0.6		---		---

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		164.4		---		0.3		3.3		10.3		23		28.1		30.6		30.1		24.9		11.4		2.1		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		244.6		3.2		5.8		15.6		23.2		30.2		29.9		30.9		31		29.5		25.6		14.6		5.2

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		307		13.2		16.4		25.4		29		30.9		30		31		31		30		30.4		24.6		15.2

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		347		23.8		24.3		30		30		31		30		31		31		30		31		29.3		25.7

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		361.8		29.1		27.5		30.9		30		31		30		31		31		30		31		30		30.2

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		320.8		31		28		31		30		30.1		21.4		14.6		16.6		26.5		30.6		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		221.3		30.8		27.6		29.9		26.1		14.8		2.5		0.2		0.7		7.4		22.8		27.9		30.5

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		151.8		28.6		24.4		22		13		2.9		0.1		---		---		1.1		11		21		27.7

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		85.4		21.7		17.1		9.2		3.2		---		---		---		---		---		2.9		11.2		20

Average Number of Days Below 32F/0C

Years on Record: 53

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		40.9		13.2		8.6		3.5		0.1		---		---		---		---		---		0.2		4		11.4

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		3.3		1.8		0.6		0.1		---		---		---		---		---		---		---		0.1		0.8

PRECIPITATION

Average Precipitation

Years on Record: 53

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1152		111		101		113		80		83		106		117		124		93		73		67		84

Average Number of Days With Precipitation

Years on Record: 53

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		93		9		8		8		7		7		9		10		9		7		6		6		7

Most Precipitation Reported in a Day

Years on Record: 53

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm.		208		139.7		81.3		124.5		92.5		124.5		85.1		119.4		163.3		184.2		208		95.2		101.8

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		66.2		6.4		5.5		5.8		5		4.7		6.5		7		7.2		4.4		3.6		4.5		5.6

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

Years on Record: 53

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		68		6		6		7		5		5		7		7		7		5		4		4		5

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

Years on Record: 53

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		31		3		3		3		2		2		3		3		3		2		2		2		2

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		29.9		2.8		2.7		3		2.3		1.8		2.7		2.9		3.4		2.2		1.6		2.1		2.4

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

Years on Record: 53

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

PRECIPITATION - RAIN

Most Rain Reported in a Month

Years on Record: 53

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1717		254		201		343		224		266		222		322		406		312		361		255		227

Least Rain Reported in a Month

Years on Record: 53

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		812		15		13		9		14		7		15		28		3		---		---		9		14

PRECIPITATION - SNOW

Average Snowfall

Years on Record: 53

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm.		0.8		---		0.8		---		---		---		---		---		---		---		---		---		---

Most Snow Reported in a Month

Years on Record: 53

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm.		35.6		3.8		35.6		---		---		---		---		---		---		---		---		---		1.5

DEGREE DAYS

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2299		585		421		271		111		17		1		---		---		6		92		276		519

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2076		1		3		18		65		223		400		494		460		294		96		18		3

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5747		64		99		244		407		671		849		959		925		738		472		226		91

SKY CONDITIONS

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.6		10.7		11.5		12.4		13.5		14.3		14.8		14.5		13.7		12.8		11.7		10.9		10.5

SOLAR RADIATION

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.9		9.6		11.9		15.8		20.2		21.6		21.5		20.7		18.7		16.4		14.3		10.9		9.1

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6		3.6		4.6		5.9		7		8.2		8.8		8.6		7.8		6.5		4.7		3.7		3.2

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.1		13.6		15.2		17.8		20.1		19.8		19		18.6		17.9		17.4		17.8		15.1		13.6

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.1		14.2		14.6		17.1		20.5		20		18.8		17.9		16.6		16.3		18.2		16.2		14.7

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.9		9.6		11.9		15.8		20.2		21.6		21.5		20.7		18.7		16.4		14.3		10.9		9.1

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.4		3.8		4.9		6.3		7.7		8.8		9.1		8.9		8.1		6.8		5.3		4		3.5

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		20.2		16		19.1		20.4		23.4		22.1		21.8		20.9		20.7		20.2		23.1		18.3		16.2

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		22.4		18		20.6		21.4		26.8		25		25.2		22.8		21.8		21		26.8		21.4		18.6

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.1		7.4		10.2		12.7		16.8		17		19		18.1		16.1		13.9		11.4		7.3		7.5

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.4		3.3		4.1		5.5		6		7.5		8		8		7.2		5.9		3.6		3.2		2.9

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.7		9.7		12.4		13.8		16.5		15.7		16.9		16.4		15.4		14.4		13.5		9		10.4

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.5		8.6		10.7		11.1		14.2		12.3		14.5		13.6		12.2		11.7		11.7		7.4		10

NEARBY - MAP

NEARBY - LIST

Midville, Georgia (0 mi / 0 km)
Midville - Lamberts Lakes, Georgia (5 mi / 8 km)
Millen, Georgia (13 mi / 21 km)
Perkins, Georgia (13 mi / 21 km)
Louisville, Georgia (14 mi / 23 km)

GEOBA.SE

Herndon, Georgia