SULLIVANS ISLAND, SOUTH CAROLINA

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Elevation: 0 feet Latitude: 32 46N Longitude: 079 51W

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MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

[ °C ] °F

TEMPERATURE

Average Temperature

Years on Record: 59

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		66		48.8		50.8		57		64.7		72.7		78.8		81.6		81.1		76.7		68.1		59.4		51.8

Average High Temperature

Years on Record: 59

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		74.5		57.8		60.1		66.2		73.9		81.2		86.5		89.1		88.5		84.3		77		68.8		61.1

Average Low Temperature

Years on Record: 59

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		57.3		39.8		41.4		47.6		55.6		64.2		71		74		73.6		69.1		59.1		50		42.4

Highest Recorded Temperature

Years on Record: 59

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		105		78		81		90		93		99		105		101		103		99		94		89		84

Lowest Recorded Temperature

Years on Record: 59

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		9		9		12		19		15		37		49		59		57		48		32		22		11

Average Number of Days Above 90F/32C

Years on Record: 59

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		38.7		---		---		---		0.1		1.7		7.4		13.5		12.4		3.3		0.2		---		---

Average Number of Days Below 32F/0C

Years on Record: 59

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		17.9		6.9		4.3		1.3		0.1		---		---		---		---		---		---		0.6		4.7

Average Number of Days Below 0F/-17C

Years on Record: 59

ANNUAL

JAN

FEB

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Days

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PRECIPITATION

Average Precipitation

Years on Record: 59

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		47.2		3.8		3.3		3.9		2.7		3		4.5		5.4		6.3		4.7		3.8		2.6		3.2

Average Number of Days With Precipitation

Years on Record: 59

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		104		10		9		9		7		7		9		11		10		9		7		7		9

Most Precipitation Reported in a Day

Years on Record: 59

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		9.8		4.1		6		4		4.7		6.5		5.2		6		5		4.7		9.8		7.6		3.9

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

Years on Record: 59

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		70		6		6		6		4		5		6		8		8		6		4		4		6

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

Years on Record: 59

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		30		3		2		3		2		2		3		3		4		3		2		2		2

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

Years on Record: 59

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

PRECIPITATION - RAIN

Most Rain Reported in a Month

Years on Record: 59

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		68.3		8.8		9.3		9.5		7.6		14.3		15.7		17.9		20.6		11.4		19.2		10.2		7.3

Least Rain Reported in a Month

Years on Record: 59

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		31.1		0.6		0.4		0.5		---		0.1		0.9		1.2		0.1		0.4		0.1		0.1		0.7

PRECIPITATION - SNOW

Average Snowfall

Years on Record: 59

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		0.1		---		---		---		---		---		---		---		---		---		---		---		0.1

Most Snow Reported in a Month

Years on Record: 59

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		1.5		0.7		0.5		1.5		---		---		---		---		---		---		---		---		4

DEGREE DAYS

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1906		534		415		250		69		---		---		---		---		---		47		185		406

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2273		10		6		21		63		234		405		505		484		348		147		38		12

Growing Degree Days

Years on Record: 59

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5891.9		---		22.6		217		441		703.7		864		979.6		964.1		801		561.1		282		55.8

NEARBY - MAP

NEARBY - LIST

Charleston - Harbor, South Carolina (4 mi / 8 km)
Mount Pleasant, South Carolina (4 mi / 7 km)
Charleston, South Carolina (14 mi / 22 km)
North Charleston, South Carolina (14 mi / 22 km)
Lincolnville, South Carolina (24 mi / 38 km)

GEOBA.SE

Sullivans Island, South Carolina

WEATHER FORECAST