ROCKTON, ONTARIO

Average Temperature

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		9.1		-4.4		-3.2		1		7.5		13.9		19.4		22.5		21.4		16.9		10.4		4.4		-1

Average High Temperature

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		13.7		-0.6		0.8		5.2		12.4		19.4		25		28		26.7		21.8		15.1		8		2.4

Average Low Temperature

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		4.4		-8.1		-7.1		-3.3		2.6		8.3		13.8		16.9		16.1		11.9		5.7		0.7		-4.3

Highest Recorded Temperature

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		39		15		18		27		32		35		37.2		39		37.2		36.1		31.1		26.7		22

Lowest Recorded Temperature

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-29.4		-29.4		-27		-23.9		-13.9		-2.8		1.1		5.6		3		-1.1		-7.8		-16.1		-27

Average Number of Days Above 95F/35C

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1.1		---		---		---		---		---		0.2		0.7		0.2		---		---		---		---

Average Number of Days Above 86F/30C

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		19.9		---		---		---		0.3		1.5		4.5		7.9		4.7		1.1		---		---		---

Average Number of Days Above 70F/21C

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		125.3		---		---		0.9		3		12.3		24.9		30.2		29.6		18.9		5		0.4		0.1

Average Number of Days Above 50F/10C

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		213.7		0.7		1.1		6.2		17.2		29.7		30		31		31		30		25.8		9.2		1.8

Average Number of Days Above 32F/0C

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		318.4		14.1		15.1		24.8		29.7		31		30		31		31		30		31		28.8		21.9

Average Number of Days Below 35F/2C

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		154.7		30.2		26.9		26.9		14.1		1.4		---		---		---		0.3		6.9		19.6		28.4

Average Number of Days Below 32F/0C

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		126.2		28.4		24.9		22.7		9.3		0.2		---		---		---		0.1		2.8		13.7		24.1

Average Number of Days Below 28F/-2C

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		88.3		24.9		19.8		16		3.9		---		---		---		---		---		0.4		6		17.4

Average Number of Days Below 10F/-12C

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		29.1		11.7		8.4		3.5		0.1		---		---		---		---		---		---		0.2		5.2

Average Number of Days Below -4F/-20C

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2.7		1.9		0.4		---		---		---		---		---		---		---		---		---		0.3

Average Number of Days Below -22F/-30C

Years on Record: 19

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Average Precipitation

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		863.1		66		54.5		61.6		70.6		81		69.1		75.3		82		83.1		71.9		84.9		63

Most Precipitation Reported in a Day

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		90		48.3		48.3		50.8		51.1		65		58.4		60.5		76.2		87		90		63.5		42.6

Avg. No. of Days w/Precip. Above 0.1in/2.5mm

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		135.8		12.4		9.6		11		12.5		11.8		10.9		10.1		10.2		10.9		10.7		13.9		11.9

Avg. No. of Days w/Precip. Above 0.2in/5mm

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		56.1		4.6		3.4		4.1		4.7		5.2		4.7		4.8		5.1		4.8		4.6		5.7		4.3

Avg. # of Days w/Precip. Above 0.4in/10mm

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		28.6		2		1.7		2.1		2.3		2.8		2.3		2.7		2.9		2.5		2.6		2.7		2

Avg. No. of Days w/Precip. Above 1in/25mm

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4.8		0.4		0.3		0.3		0.3		0.4		0.4		0.6		0.7		0.6		0.2		0.4		0.2

Avg. No. of Days w/Rain Above 0.1in/2mm

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		113.9		4.9		4.5		8		11.7		11.8		10.9		10.1		10.2		10.9		10.7		12.7		7.7

Average Rainfall

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		763.3		31.8		33		44.7		68.2		81		69.1		75.3		82		83.1		71.9		79.7		43.5

Most Rain Reported in a Day

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		90		48.3		47.8		50.8		51.1		65		58.4		60.5		76.2		87		90		63.5		42.6

Avg. No. of Days w/Rain Above 0.2in/5mm

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		48.7		2		2		2.8		4.6		5.2		4.7		4.8		5.1		4.8		4.6		5.2		2.8

Avg. No. of Days w/Rain Above 0.4in/10mm

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		25.8		1.1		1.1		1.5		2.3		2.8		2.3		2.7		2.9		2.5		2.6		2.6		1.5

Avg. No. of Days w/Rain Above 1in/25mm

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4.7		0.3		0.3		0.3		0.3		0.4		0.4		0.6		0.7		0.6		0.2		0.4		0.2

Average Snowfall

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		99.9		34.2		21.5		16.9		2.4		---		---		---		---		---		---		5.3		19.5

Average Snow Cover at Month End

Years on Record: 1

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		0.2		---		2		---		---		---		---		---		---		---		---		---		---

Deepest Snow Cover Reported

Years on Record: 11

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		41		40		41		14		3		---		---		---		---		---		---		3		15

Most Snow Reported in a Day

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		42		42		22.9		19.8		25		---		---		---		---		---		8.9		20.3		24

Avg. No. of Days w/Snow Above 1in/2.5cm

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		25.5		8.1		6		3.6		0.8		---		---		---		---		---		---		1.6		5.4

Avg. No. of Days w/Snowfall Above 2in/5cm

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		7.5		2.6		1.4		1.3		0.1		---		---		---		---		---		---		0.4		1.6

Avg. No. of Days w/Snow Above 3.9in/10cm

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2.4		0.9		0.6		0.4		0.1		---		---		---		---		---		---		0.1		0.4

Avg. No. of Days w/Snowfall Above 10in/25cm

Years on Record: 19

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

Heating Degree Days

Years on Record: 92

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4479.9		706.1		643.5		568.3		383.3		206.7		16.7		---		---		83.3		258.3		466.7		637.2

Cooling Degree Days

Years on Record: 92

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		120.6		---		---		---		---		---		---		68.9		51.7		---		---		---		---

Growing Degree Days

Years on Record: 92

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1088.9		---		---		---		---		51.7		233.3		327.2		310		166.7		---		---		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.8		10		11.1		12.5		14		15.3		15.9		15.6		14.4		12.9		11.5		10.2		9.6

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.9		5.5		8.6		12		15.7		18.6		21.1		21.1		18.2		14.4		9.6		5.6		4.6

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.4		2.5		3.6		5.2		7		8.3		8.7		8.3		7.2		5.6		4.1		2.8		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		14.4		10		12.9		14.6		16.1		17		18.4		18.8		17.9		16.4		13.1		8.8		8.5

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.3		9.6		12.6		13.6		15.2		16.5		19.4		20.3		18.2		16.4		12.6		8.3		8.1

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.9		5.5		8.6		12		15.7		18.6		21.1		21.1		18.2		14.4		9.6		5.6		4.6

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.6		2.5		3.7		5.3		7.1		8.5		9		8.7		7.5		5.9		4.2		2.8		2.2

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.1		11.6		15.4		18.2		19.7		20		21		20.6		20.4		19.8		16.2		10.6		11.2

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18.7		11.6		15.9		19.1		21.3		22.4		25.5		24.2		23.1		22		16.9		10.7		11.4

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.6		4.7		7.4		9.5		13.4		15.2		16.9		17.3		16.5		11.3		7.9		3.9		3.5

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.1		2.5		3.4		4.8		6.4		7.8		8		7.8		6.7		5		3.8		2.5		2.1

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.3		7.7		10.2		10.8		13.5		13.9		14.8		15.4		16.1		12.2		10.2		5.3		5.5

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		9.6		6.8		9.4		8.5		10.9		10.9		12.3		13.6		15		10.1		8.6		4		4.8