BASEL, SWITZERLAND

Average Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		9.6		0.9		2.4		5.6		9.1		13.1		16.3		18.5		17.7		14.8		10.1		4.9		1.8

Average High Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		14.1		3.5		5.9		10		14.1		18.4		21.7		24.1		23.4		20.3		14.8		8.2		4.4

Average Low Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		5.6		-1.9		-0.7		1.7		4.4		8.1		11.1		13		12.8		10.4		6.6		2		-0.8

Average Number of Days Above 86F/30C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6.7		---		---		---		---		0.1		1		3.3		2.1		0.2		---		---		---

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		41.3		---		---		---		0.4		2.8		8		13.6		11.6		4.5		0.4		---		---

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		12.9		5.7		3		0.2		---		---		---		---		---		---		---		1		3

Average Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		778		51		49		51		64		84		87		79		87		62		51		59		54

Average Number of Days With Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		111.3		10.1		9.4		10.8		11.3		12.6		10.9		9.5		10.3		8.3		8.4		10		9.8

Average Number of Days With Frost

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		52.2		18.8		14.5		9.4		2.5		0.2		---		---		---		---		1		8.1		16.5

Average Number of Days With Ice

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		9.6		6.3		2.8		0.6		---		---		---		---		---		---		---		1		5.2

Average Relative Humidity

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Percent		76.5		82.3		78.4		73.4		71		72.6		71.8		70.6		73.8		78.1		81.7		82.2		82.4

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3516.2		543.4		444.9		386.7		272.5		157.6		57.5		---		7.8		90		236.8		396.7		512.4

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6.9		---		---		---		---		---		---		6.9		---		---		---		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		990.7		---		---		---		---		100.8		192.5		265.2		250.6		160		21.6		---		---

Average Station Pressure

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mbar		979.7		980.5		978.6		978.4		976.9		978.3		980		980.8		980.2		981.4		981.3		979.6		980.1

Average Vapor Pressure

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mbar		9.8		5.5		5.8		6.7		8.1		10.8		13.4		15.1		15.1		13.3		10.5		7.3		5.9

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.8		9.5		10.8		12.5		14.2		15.8		16.6		16.1		14.7		13		11.3		9.9		9.1

Average Daily Sunshine

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		9.3		11		11		11		10		10		9		4		4		8		11		11		11

Average Monthly Sunshine

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		1540		58		81		121		149		171		185		219		203		168		120		70		53

Average Number of Days With Fog

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		81		9		8		5		4		4		3		2		5		9		13		11		8

Average Possibility of Sunshine

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Percent		38		22		29		34		38		38		40		48		48		47		37		27		22

Average Wind Speed

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
km/h		9		10.8		10.4		10.1		9		8.3		8.3		7.9		7.2		7.2		7.6		9		10.4

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.3		4.1		6.9		10.6		14.5		17.9		19.2		19.3		16.7		11.9		7.1		4.2		3.2

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.9		2.6		3.8		5.8		7.6		9		9.6		9.2		8.1		6.1		3.8		2.6		2

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.1		6.6		10.1		12.7		14.9		16.4		16.7		17.1		16.4		13.5		9.4		6.5		5.3

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.9		6		8.9		10.7		12.8		15		15.8		16.7		15.2		11.9		8.3		5.5		4.6

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.3		4.1		6.9		10.6		14.5		17.9		19.2		19.3		16.7		11.9		7.1		4.2		3.2

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.2		2.9		4.5		6.4		7.7		9.1		9.7		9.4		8.2		6.9		4.5		3.1		2.4

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.4		8.7		14		17.1		18.1		21.7		19.4		19.4		19.4		19.1		12.4		8.9		6.7

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.5		7.9		12.5		15.9		17.8		24.5		21.3		21		20.2		19		11.6		7.9		6.2

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		8.8		3.4		5.2		7.9		10		14.6		14.9		16.6		14.5		8.1		5.1		3.1		2.4

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.4		2.2		3.2		5.2		6.8		8.8		9.3		9.1		8		5.3		3.2		2.2		1.7

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		9.1		5.2		7.1		8.8		9.8		13.3		13.1		14.8		14		8.5		6.4		4.4		3.6

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.7		4.5		5.9		5.9		5.8		9.6		9.2		12.1		11.2		5.7		5		3.2		2.8