TRONDHEIM, NORWAY

Average Temperature

Years on Record: 88

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		4.8		-3		-2.5		---		3		9		12		13		12.5		9		5.5		0.5		-2

Average High Temperature

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		8		---		1		4		7		13		16		17		17		13		8		3		1

Average Low Temperature

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		2		-5		-5		-2		---		5		8		11		10		6		3		-1		-4

Highest Recorded Temperature

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		31		12		12		16		20		27		30		31		30		25		18		15		12

Lowest Recorded Temperature

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-26		-26		-22		---		-12		-3		---		---		2		-2		-11		---		-22

Average Number of Days Above 65F/18C

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		41		---		---		---		---		6		9		13		11		2		---		---		---

Average Number of Days Above 50F/10C

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		167		---		1		2		8		23		29		31		31		25		13		3		1

Average Number of Days Below 32F/0C

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		132		24		22		22		13		2		---		---		---		1		7		17		24

Average Number of Days Below 0F/-17C

Years on Record: 20

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

Average Precipitation

Years on Record: 88

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		855		60		50		50		45		50		65		90		85		110		100		70		80

Average Number of Days With Precipitation

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		272		23		19		20		22		20		24		24		24		24		25		24		23

Average Number of Rainy Days

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		227		13		10		14		16		20		24		24		24		24		24		19		15

Average Number of Days With Thunderstorms

Years on Record: 18

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

Average Number of Days With Snow

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		95		18		15		13		12		2		---		---		---		---		4		13		18

Average Morning Relative Humidity

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		82		81		79		77		80		77		80		86		88		87		83		81		82

Average Evening Relative Humidity

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		69		79		72		62		62		57		64		67		68		69		73		79		81

Average Dew Point

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		1		-5		-5		-3		-1		3		7		10		9		6		2		-1		-4

Heating Degree Days

Years on Record: 88

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5451		661.3		588.6		568.3		460		289.3		190		165.3		180.8		280		397.8		535		630.3

Growing Degree Days

Years on Record: 88

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		230.5		---		---		---		---		---		60		93		77.5		---		---		---		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		13.6		6.9		9.6		12.7		16		19.9		22.4		20.5		17.2		13.7		10.5		7.6		5.9

Average Number of Days With Fog

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		31		2		2		1		1		2		2		3		5		4		4		2		3

Average No. of Days With Vision Obstruction

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		36		3		3		2		2		2		2		3		5		4		4		2		4

Average Wind Speed

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
km/h		12		9		9		9		17		14		14		14		14		8		9		9		9

Average No. of Days With Blowing Snow

Years on Record: 18

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

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		8.6		0.6		2.5		6.6		12.8		17.9		18.7		16.8		13.2		8.6		3.8		1.1		0.2

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		4.8		0.5		1.7		4.2		7		8.9		10		9.3		7.8		4.9		2.5		0.8		0.2

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		9.5		1.8		5		10		14.7		16.6		15.9		14.7		13.2		11.4		6.8		3		0.8

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		9.5		1.5		4.3		8.3		14.4		19.3		18.5		15.9		12.4		11		6.1		2.7		---

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		8.6		0.6		2.5		6.6		12.8		17.9		18.7		16.8		13.2		8.6		3.8		1.1		0.2

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5		0.5		2		4.5		7		9		10.1		9.5		7.9		5.3		2.8		0.9		0.2

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.8		2.3		6.8		13.1		17.3		19.3		19.4		18.4		17.8		14		8.5		3.7		1.2

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		1.9		6.2		11.6		18		25.1		26.9		23.9		20.4		14.4		8		3.6		---

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		7.2		0.5		1.9		5		10.6		15.8		15.4		14.4		11.5		7.2		3.2		1		0.2

Minimum 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		0.4		1.4		3.7		6.8		8.8		9.8		9.1		7.6		4.5		2.2		0.8		0.2

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		7.5		1.3		3.2		6.2		11.2		14.5		13.1		12.5		11.2		8.8		5.2		2.6		0.5

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		1.1		2.6		4.5		9.4		15.2		12.1		11.2		8.9		7.6		4.5		2.3		---