AROSA, SWITZERLAND

Average Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		2.9		-4.2		-4.1		-2.3		0.6		5.2		8.4		10.9		10.5		8.2		5		-0.5		-3.2

Average High Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		6.8		-1.1		-0.6		1.7		4.6		9.1		12.8		15.8		15.1		12.8		8.9		2.7		---

Average Low Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-0.1		-6.8		-6.9		-5.2		-2.2		1.8		5		7.4		7.3		5.3		2.2		-2.9		-5.8

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		0.5		---		---		---		---		---		---		0.3		0.2		---		---		---		---

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		65.4		14.7		13.3		9.6		4.6		0.3		---		---		---		0.1		1.2		8.3		13.3

Average Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1335		89		75		90		98		130		147		158		159		119		84		101		85

Average Number of Days With Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		135.1		11.5		9.9		12.6		13.5		14.4		15.6		14.7		14.5		10.3		8.8		10.5		10.3

Average Number of Days With Frost

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		142.8		29.9		26.7		27.2		19.5		8.4		1.6		0.1		---		2.4		8.6		20.6		27.7

Average Number of Days With Ice

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		56.1		16.3		14.7		10.9		5.7		0.4		0.1		---		---		---		1.5		8.7		14.1

Average Relative Humidity

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Percent		72.9		69.4		70.6		72.3		75.4		76.8		76.6		74.9		76.8		75.8		68		69.4		69.2

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5976.7		690.6		623.8		622.6		514.2		399.6		283.3		209.3		221.3		279.2		396.1		552.5		657.9

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		86.2		---		---		---		---		---		---		49.1		37.1		---		---		---		---

Average Station Pressure

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mbar		813.3		810.4		808.9		809.7		809.5		813.1		816.1		818.3		817.8		817.8		815.8		811.7		810.7

Average Vapor Pressure

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mbar		5		2.7		2.7		3.1		3.9		5.5		7.2		8.5		8.5		7.1		5		3.5		2.8

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.8		9.6		10.9		12.5		14.2		15.7		16.5		16		14.7		13		11.4		9.9		9.2

Average Monthly Sunshine

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		1601		92		109		137		138		162		161		201		187		169		150		99		88

Average Possibility of Sunshine

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		48.4		54.6		53.9		46.2		42.6		43		42.1		51.9		51		50.3		55.1		48.5		48.5

Average Percent of Cloud Cover

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Percent		62		58		58		66		71		71		71		62		61		56		52		58		55

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12		5.2		8.2		12.2		15.6		18.7		19		19.1		16.5		12.3		8.4		5.2		4

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.1		3		4.2		6.2		7.7		9		9.5		9.2		8.1		6.2		4.3		3.1		2.5

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.3		9		12.5		15.1		16		17.1		16.5		17		16.2		13.9		11.3		8.3		7

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.1		7.9		11.1		13.2		14.3		16.2		15.4		16.2		14.6		12.3		10.4		7.2		6.3

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12		5.2		8.2		12.2		15.6		18.7		19		19.1		16.5		12.3		8.4		5.2		4

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		3.4		4.8		6.7		7.7		9.1		9.6		9.3		8.2		7		5.2		3.5		2.8

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.3		11.4		15.7		18.9		18.9		19.6		18.7		19.7		18.7		19.6		15.5		10.8		8.6

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.1		10.1		14.3		17.2		19		20.8		19.8		21.5		19		19.5		15.1		9.5		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		9.6		4.2		6.5		10.6		12.7		15.9		15.5		16.4		14.1		7.5		5.7		3.4		3

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.6		2.6		3.6		5.8		7.5		8.8		9.4		9		7.9		5.2		3.4		2.3		2

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.2		6.9		9.2		12.6		12.7		14.5		13.6		14.6		13.6		7.6		7.1		4.8		4.8

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		7.9		5.8		8		10.4		9.2		11.6		9.9		11.8		10.3		4.6		5.8		3.6		4