LAKE BULL, ANTARCTICA

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Elevation: 226 meters Latitude: 77 31S Longitude: 161 40E

WEATHER

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Climate Summary

CURRENT CONDITIONS

Sunrise/Set

07:00 pm

07:00 pm
Local Time
7:30 am EST
15 November, 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		-19.8		1.4		-5.9		-20.4		-29.7		-29.2		-30		-38		-32.3		-31.2		-15.7		-6.2		0.2

Average High Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-15.1		4.7		-2.1		-15.6		-25.4		-23.5		-25.1		-33.4		-26.5		-25.7		-10		-1.6		3.6

Average Low Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-24.4		-2		-9.7		-25.1		-34		-34.8		-34.8		-42.6		-38.1		-36.7		-21.4		-10.9		-3.1

Highest Recorded Temperature

Years on Record: 9

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		15		15		4.4		---		---		---		---		---		---		2.6		0.7		9.5		14.3

Lowest Recorded Temperature

Years on Record: 9

ANNUAL

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PRECIPITATION - SNOW

Average Number of Days With Snow

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		41.9		3.8		3		7		2		5		6		2		5		2		0.7		1.9		3.5

Av. # of Days w/Snow Depth Above 0.4in/10mm

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		28.6		0.5		1.5		12		---		---		7		1		---		6		0.3		0.3		---

Average Number of Days With Frost

Years on Record: 9

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		355		25.8		28		31		30		31		30		31		31		30		31		30		26.2

HUMIDITY

Average Morning Relative Humidity

Years on Record: 8

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		37.8		34.8		40.7		---		---		---		---		---		---		---		---		---		---

DEGREE DAYS

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		14154.6		523.9		750.2		1199.7		1488		1472.5		1497.3		1745.3		1568.6		1534.5		1054		759.5		561.1

BAROMETER

Average Sea Level Pressure

Years on Record: 14

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mbar		995.4		996.2		993.4		995.7		1000.3		997.1		1003.9		999.2		993.7		994.7		992.2		986.3		992.3

Average Vapor Pressure

Years on Record: 10

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mbar		5.5		2.4		1.5		---		---		---		---		---		---		1.6		5.9		12.3		14.6

SKY CONDITIONS

Average Number of Days With Fog

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		11.1		---		1		---		1		4		3		1		1		---		---		---		0.1

Average Percent of Cloud Cover

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		43.3		51.3		53.8		47.5		47.5		37.5		33.8		18.8		43.8		51.3		40		45		50

WIND

Average Wind Speed

Years on Record: 14

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
km/h		17.4		23.4		20.2		13		8.3		15.5		11.2		10.1		17.6		16.2		26.3		23		24.5

Highest Reported Wind Gust

Years on Record: 5

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
km/h		148.3		101.9		92.5		140.8		129.6		148.3		133.6		---		---		---		---		---		---

Avg. # of Days w/Wind Above 32 mph/52 km/h

Years on Record: 5

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		100.6		29.6		22		15		14		13		7		---		---		---		---		---		---

Avg. # of Days w/Wind Above 39 mph/63 km/h

Years on Record: 7

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		162		14		14		12		13		11		6		6		18		13		22		15.9		17.1

Average Primary Wind Direction

Years on Record: 5

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
°		238		198		260		270		260		200		240		---		---		---		---		---		---

Avg. # of Days w/Wind Above 59 mph/82 km/h

Years on Record: 7

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		65		1.3		---		6		3		7		3		4		14		12		12		2		0.7

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		8.7		22.5		14.6		6.2		0.6		---		---		---		0.1		3.6		11.6		20.6		24.7

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		4.8		12.7		8.3		3.1		0.4		---		---		---		---		2.3		5		11.5		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		12		24.9		18.9		15.1		6		---		---		---		---		9.8		19.5		23.7		26.5

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.6		28		28.4		18		5.4		---		---		---		---		10.2		28.7		28.7		27.9

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		8.7		22.5		14.6		6.2		0.6		---		---		---		0.1		3.6		11.6		20.6		24.7

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		3.5		0.5		---		---		---		---		2.4		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		---		30.9		20.9		17.1		6.8		---		---		---		---		10.8		23.5		28.3		31.1

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		39.8		33.2		20.5		6.2		---		---		---		---		11.4		36.8		38.3		36.6

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		18		11.9		5.5		0.5		---		---		---		0.1		3.1		8.7		15.1		18.5

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		11.7		7.7		3		0.4		---		---		---		---		2.1		4.8		10.2		12.4

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		19.2		14.6		12.7		5		---		---		---		---		8.2		13.2		16.4		19.1

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		17.9		19		14.7		4.5		---		---		---		---		8.4		16.1		15.5		16

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Lake Bull, Antarctica