MCMURDO SOUND, ANTARCTICA

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Elevation: 7 meters Latitude: 77 52S Longitude: 166 58E

WEATHER

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CURRENT CONDITIONS

Sunrise/Set

06:34 pm

11:08 pm
Local Time
1:12 pm EDT
18 April, 2024

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MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

[ °F ] °C

TEMPERATURE

Average Temperature

Years on Record: 26

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-17		-2		-8		-17		-20		-22		-22		-25		-26		-23		-18		-9		-3

Average High Temperature

Years on Record: 26

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-13		---		-6		-14		---		-18		-18		-21		-22		-20		-15		-6		-1

Average Low Temperature

Years on Record: 26

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-20		-5		-11		-20		-24		-26		-26		-30		-31		-28		-22		-12		-6

Highest Recorded Temperature

Years on Record: 26

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		9		8		3		-2		-3		-2		-4		-4		-4		-4		---		2		9

Lowest Recorded Temperature

Years on Record: 26

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-50		-15		-25		-43		-40		-44		-41		-50		-49		-43		-40		-28		-16

Average Number of Days Above 40F/4C

Years on Record: 26

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3		2		---		---		---		---		---		---		---		---		---		---		1

Average Number of Days Above 32F/0C

Years on Record: 26

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		32		16		2		---		---		---		---		---		---		---		---		1		13

Average Number of Days Below 0F/-17C

Years on Record: 26

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		227		---		3		22		26		29		28		30		31		29		26		4		---

Average Number of Days Below -40F/-40C

Years on Record: 26

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		8		---		---		---		---		1		---		2		4		1		---		---		---

PRECIPITATION

Average Precipitation

Years on Record: 26

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		190		10		20		10		10		20		20		10		10		10		10		10		10

PRECIPITATION - RAIN

Most Rain Reported in a Month

Years on Record: 26

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		470		70		130		60		40		70		130		60		70		30		110		40		70

HUMIDITY

Average Morning Relative Humidity

Years on Record: 14

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		63		67		66		65		65		64		64		60		59		58		60		62		68

Average Evening Relative Humidity

Years on Record: 14

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		64		64		64		66		66		66		63		60		59		59		62		64		67

Average Dew Point

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-11		-11		-13		-13		-11		-10		-10		-8		-8		-10		-12		-13		-11

DEGREE DAYS

Heating Degree Days

Years on Record: 26

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		12735.3		663.1		769.1		1102.2		400		1274.4		1233.3		1360.6		1412.2		1291.7		1162.5		841.7		680.3

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		24		24		16.8		3		---		---		---		---		12.6		24		24		24

Average Number of Days With Fog

Years on Record: 26

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		40		3		2		5		5		3		2		3		5		5		4		1		2

WIND

Average Wind Speed

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
km/h		22		20		22		27		25		25		25		25		25		25		22		19		19

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		8.3		21.7		13.4		5.4		0.5		---		---		---		0.1		3.3		10.9		19.5		24.6

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		4.7		12.6		8.1		3		0.4		---		---		---		---		2.2		5		11.3		14

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.1		23.9		16.9		12.2		4.9		---		---		---		---		8.8		18		22.2		26.3

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13		26.1		23.9		13.9		4.4		---		---		---		---		9.1		25.6		25.8		27.7

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		8.3		21.7		13.4		5.4		0.5		---		---		---		0.1		3.3		10.9		19.5		24.6

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		13.2		8.5		3.1		0.4		---		---		---		---		2.3		5.1		11.8		14.4

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		30		20.2		14.4		6		---		---		---		---		9.9		23.3		27.9		31.7

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		38		31.6		17.1		5.4		---		---		---		---		10.3		36.4		37.3		37.8

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		14.9		10.7		4.4		0.5		---		---		---		0.1		2.9		7.9		14		17.1

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		10.6		7.3		2.9		0.4		---		---		---		---		2		4.9		9.7		11.8

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		15.6		12.8		8.5		4.1		---		---		---		---		7.3		11.5		15.1		17.5

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		12.5		15.3		8.6		3.6		---		---		---		---		7.4		13.2		13.4		13.7

NEARBY - MAP

NEARBY - LIST

Scott Base, Antarctica (3 mi / 5 km)

GEOBA.SE

McMurdo Sound, Antarctica