CASEY BASE CAMP, ANTARCTICA

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Elevation: 40 meters Latitude: 66 17S Longitude: 110 31E

WEATHER

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Climate Summary

CURRENT CONDITIONS

Sunrise/Set

08:16 pm

04:57 am
Local Time
10:44 am EDT
19 April, 2024

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MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

[ °F ] °C

TEMPERATURE

Average Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-8		---		-2		-6		-11		-13		-13		-14		-15		-14		-11		-5		---

Average High Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-5		2		---		-3		-8		-10		-10		-11		-11		-10		-7		-2		1

Average Low Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-12		-2		-4		-9		-15		-17		---		---		-18		---		-15		-8		-3

Highest Recorded Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		9		9		7		4		2		2		4		3		2		2		3		6		7

Lowest Recorded Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-41		-9		-15		-26		-32		-33		-33		-41		-38		-33		-31		-21		-15

Average Number of Days Above 32F/0C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		91		29		17		5		1		1		---		1		---		1		1		9		26

Average Number of Days Above 20F/-6C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		221		31		28		26		12		11		11		10		9		8		16		28		31

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		105		---		---		2		11		15		15		17		18		17		10		1		---

Average Number of Days Below -20F/-28C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		10		---		---		---		---		1		1		3		3		2		---		---		---

PRECIPITATION

Average Precipitation

Years on Record: 25

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		280		20		20		30		20		30		30		30		20		20		20		10		10

PRECIPITATION - RAIN

Most Rain Reported in a Month

Years on Record: 25

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		690		160		220		120		110		100		150		70		90		90		50		30		60

Least Recorded Rainfall

Years on Record: 25

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		130		---		---		---		---		---		---		---		---		---		---		---		---

HUMIDITY

Average Morning Relative Humidity

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		73		71		72		75		75		76		75		76		75		75		72		70		70

Average Evening Relative Humidity

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		72		68		68		72		74		75		75		75		73		73		70		67		68

Average Dew Point

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-13		-5		-7		-10		-15		-17		---		---		-18		---		-15		-10		-6

DEGREE DAYS

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		7521.5		559.7		572.8		775		900		990.3		---		---		1024.7		---		912.8		716.7		594.2

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		431.5		---		---		---		---		---		116.7		198.1		---		116.7		---		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1189.8		---		---		---		---		---		366.7		456.4		---		366.7		---		---		---

SKY CONDITIONS

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		14		24		17.7		13.6		10		6.7		4.5		5.7		8.9		12.4		16.2		24		24

Average Number of Days With Fog

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		17		2		1		1		1		2		1		2		2		2		1		1		1

WIND

Average Wind Speed

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
km/h		43		41		37		40		17		17		56		59		57		53		49		43		43

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		8.1		19.3		13.4		7.9		3		0.5		---		0.2		1.7		5.4		9.2		16.2		20.8

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		4.6		10		8		4.5		2		0.4		---		0.2		1.2		3.5		6.2		9		10.6

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		9.7		19		15.4		11.9		6.2		2		---		1		3.9		8.6		11		17.1		20.1

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		9.4		21.9		13.4		10.9		5.3		1.7		---		---		3.3		7.1		7.9		16.8		24.8

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		8.1		19.3		13.4		7.9		3		0.5		---		0.2		1.7		5.4		9.2		16.2		20.8

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		10		8.1		4.7		2.2		0.5		---		0.2		1.3		3.8		6.7		9.2		11.1

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		22.5		21.2		13.5		7.3		2.5		---		1.4		4.4		11		14.3		23.9		24.1

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		29.6		22.7		12.8		6.4		2.1		---		---		3.7		9.8		12.5		30		34.4

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.2		16.8		11.2		7		2.5		0.5		---		0.2		1.5		3.7		4.6		12		13.6

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		9.8		7.7		4.4		1.8		0.4		---		0.2		1.1		3		3.6		8.5		8.8

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		15.7		11.9		10.2		4.8		1.7		---		0.9		3.3		4.8		5.2		12.4		12.6

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		16.3		8.7		8.6		4		1.4		---		---		2.6		2.8		2.6		8.1		11.7

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Casey Base Camp, Antarctica