ARMSTRONG, ONTARIO

Average Temperature

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		2		-20		-16		-10		---		6		13		16		14		8		3		-6		-16

Average High Temperature

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		5		-13		-8		-2		5		13		20		23		21		14		8		-2		-10

Average Low Temperature

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-7		-27		-25		-19		-6		---		6		9		7		3		-1		-10		-22

Highest Recorded Temperature

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		36		5		8		16		27		34		35		35		36		36		27		15		10

Lowest Recorded Temperature

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-50		-50		-47		-45		-32		-15		-5		-2		-3		-10		-23		-36		-49

Average Number of Days Above 90F/32C

Years on Record: 12

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Average Number of Days Below 32F/0C

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		233		31		28		30		27		18		4		---		2		10		21		28		30

Average Number of Days Below 0F/-17C

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		94		26		21		17		2		---		---		---		---		---		---		6		20

Average Precipitation

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		660		30		40		20		20		40		80		90		80		90		50		40		30

Average Number of Rainy Days

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		66		4		5		3		3		5		7		7		7		7		5		4		4

Average Snowfall

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		201		38		41		23		16		4		---		---		---		1		10		36		30

Average Relative Humidity

Years on Record: 9

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		79		83		84		78		74		70		73		75		78		83		84		87		82

Average Dew Point

Years on Record: 9

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-3		-21		---		-13		-4		---		7		11		10		5		---		-7		-17

Heating Degree Days

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		7786.1		1214.2		996.6		912.8		566.7		361.7		158.3		60.3		111.9		283.3		465		733.3		1067.8

Growing Degree Days

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		436.2		---		---		---		---		---		91.7		198.1		146.4		---		---		---		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.9		9.3		10.7		12.5		14.4		16.2		17.1		16.6		15		13.1		11.2		9.6		8.8

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.1		4.6		8.2		12.8		17.2		19.6		20.2		19.3		16.5		11.3		7.2		4.5		3.5

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		2.7		4.3		6.2		7.5		9		9.8		9.4		8.1		5.9		3.9		2.7		2.2

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.8		8.6		13.5		17.5		18.7		18		17.5		17.1		16.3		13		10		8.2		6.9

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.9		7.8		11.9		15.3		18.4		18.3		17.7		16.9		15.2		11.4		9		6.8		6.1

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.1		4.6		8.2		12.8		17.2		19.6		20.2		19.3		16.5		11.3		7.2		4.5		3.5

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		3		4.5		6.5		7.6		9.1		9.8		9.5		8.2		6.2		4.6		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		16		10.3		14.8		19.4		21.1		21.4		19.9		19.2		19.2		15.3		12.7		10		8.3

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		9.6		13.4		17.3		22.4		24.2		22.7		20.9		20.2		14.4		12		8.6		7.6

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.3		4.1		7.5		11.5		14.5		17		16.5		16.3		14.7		9.2		6.3		3.7		2.7

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.8		2.5		4		5.9		7.5		8.9		9.6		9.2		8		5.5		3.6		2.4		1.8

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.5		7.5		12.1		15.4		15		15.5		14.4		14.5		14.3		10.1		8.5		6.2		4.9

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		9.7		6.7		10.6		12.9		13		13.6		11.4		11.8		11.8		7.8		7.3		5		4.1