DEVON, ONTARIO

Average Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		35.6		3.9		8.2		19.2		35		49		58.7		63		60.7		52.2		39.6		26.3		11.8

Average High Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		46.3		15.3		20.4		31.6		46.4		61.4		70.4		74.1		71.5		62		47.9		33.4		21.3

Average Low Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		24.9		-7.3		-3.9		6.8		23.6		36.6		46.9		51.7		49.8		42.4		31.3		19.1		2.4

Highest Recorded Temperature

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		97.7		42.4		50.9		69.6		86		92.7		97.7		95		93.2		88		77.9		65.5		71.6

Lowest Recorded Temperature

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		-58		-58		-46.3		-42.7		-11.2		14.9		21.2		26.6		30.2		18.5		1.4		-23.8		-43.6

Average Number of Days Above 95F/35C

Years on Record: 30

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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		3.9		---		---		---		---		0.4		1.2		1.5		0.6		0.2		---		---		---

Average Number of Days Above 70F/21C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		83.3		---		---		---		1.6		9		18.1		24.7		20.5		8.3		1.1		---		---

Average Number of Days Above 50F/10C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		169.2		---		0.1		2.1		10.6		25.5		29.2		31		30.9		26.1		11.7		1.9		0.1

Average Number of Days Above 32F/0C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		252.7		2.6		4.2		15		26.8		30.9		30		31		31		30		29.4		15.9		5.8

Average Number of Days Below 35F/2C

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		226.7		31		28.1		30.8		27.6		16.1		2.7		0.2		0.7		7.3		22.5		28.7		31

Average Number of Days Below 32F/0C

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		208.2		30.8		27.8		29.9		25.6		12.2		0.9		0.1		0.1		4		19		27.1		30.8

Average Number of Days Below 28F/-2C

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		174.4		30.4		27.1		27.9		19.5		5.7		0.2		0.1		---		1		10.9		22.7		29.1

Average Number of Days Below 10F/-12C

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		103.1		26.1		22.8		19.1		4.7		---		---		---		---		---		0.4		8.6		21.6

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

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		53.7		17.4		15.3		8.7		0.6		---		---		---		---		---		---		1.6		10.2

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

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		14.7		7		4.2		1.3		---		---		---		---		---		---		---		---		2.3

Lowest Reported Wind Chill

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		-56		-48		-56		-50		-22.4		12.1		24.1		32		32		20		6.4		-29.5		-49.4

Highest Reported Humidex

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		107.2		42.8		48.2		69.4		83.4		102.4		105.4		107.2		105.7		98.9		84.6		66.8		51.3

Average Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		31.9		2		1.7		1.8		2.1		2.8		3.2		3.2		3		3.7		3.3		2.5		2.5

Most Precipitation Reported in a Day

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		3.3		1.2		1.2		1.2		1.4		1.9		3.3		2.1		2.2		2.8		2.4		1.4		1.4

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

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		181.1		17.3		14.2		12.5		10.6		13.2		14.4		14.1		14.8		16.9		16.6		17.4		19

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

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		50.5		3.1		2.7		3.2		3.4		4.2		4.6		4.9		4.5		6		5.5		4.2		4.1

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

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		23.5		1		0.9		1.5		1.5		2.3		2.3		2.7		2.8		2.8		2.6		1.6		1.4

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

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3.6		0.1		0.1		---		0.3		0.4		0.6		0.6		0.3		0.5		0.3		0.2		0.2

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

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		106.3		1		0.8		3.1		6.1		12.6		14.4		14.1		14.8		16.8		13.9		6.4		2.2

Average Rainfall

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		21.5		0.1		0.1		0.5		1.1		2.6		3.2		3.2		3		3.7		2.8		0.9		0.2

Most Rain Reported in a Day

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		3.3		0.7		0.5		0.8		1.3		1.9		3.3		2.1		2.2		2.8		2.4		1.1		0.7

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

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		33.9		0.2		0.1		0.9		2		4		4.6		4.9		4.5		6		4.7		1.7		0.4

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

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		17.1		---		---		0.4		0.9		2.2		2.3		2.7		2.8		2.8		2.2		0.6		0.1

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

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2.8		---		---		---		0.1		0.3		0.6		0.6		0.3		0.5		0.3		---		---

Average Snowfall

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		110.8		21.9		18		14.4		9.2		1.5		---		---		---		0.1		4.5		16.6		24.7

Average Snow Cover

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		6.6		17		22.4		20.9		7.1		0.6		---		---		---		---		0.1		2.3		8.8

Average Snow Cover at Month End

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		6.5		21.3		22.7		14.7		1.5		---		---		---		---		---		0.2		4.6		12.8

Deepest Snow Cover Reported

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		52		44.5		45.7		52		45.3		31.5		---		---		---		0.4		8.3		13.8		23.6

Most Snow Reported in a Day

Years on Record: 32

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		15.4		12.2		15.4		12.2		13.1		8.7		---		---		---		1.3		7.7		13		14.4

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

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		86		17.2		13.9		10.6		5.7		1.3		---		---		---		0.3		5		13.8		18.2

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

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		18		3.6		2.8		2.4		1.4		0.2		---		---		---		---		0.7		2.9		4

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

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6		1		1		1.1		0.5		0.1		---		---		---		---		0.2		0.8		1.4

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

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		0.7		0.1		0.1		---		0.1		---		---		---		---		---		---		0.1		0.2

Av. # of Days w/Snow Depth Above 0.4in/10mm

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		159.3		31		28.3		29.7		18.9		1.5		---		---		---		0.1		2.3		18.3		29.3

Avg. # of Days w/Snow Depth Above 2in/5cm

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		145.6		31		28.3		28.7		15.2		1		---		---		---		---		0.9		13.1		27.5

Av. # of Days w/Snow Depth Above 3.9in/10cm

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		131.8		30.8		28.3		28.1		12.4		0.9		---		---		---		---		0.2		7.4		23.9

Av. # of Days w/Snow Depth Above 7.8in/20cm

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		113.5		28.7		28.3		26.7		9.7		0.8		---		---		---		---		0.1		2		17.4

Average Morning Relative Humidity

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		86.4		80.2		80.1		80.4		81.2		81.6		86.9		91.1		94.1		94.8		92		89		85.1

Average Evening Relative Humidity

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		62.3		73.7		67.1		55.2		50		45.9		52.9		57		59		63.6		68		76		78.9

Heating Degree Days

Years on Record: 11

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		11219.1		1891		1596.1		1395		930		542.5		270		108.5		201.5		450		837		1215		1782.5

Growing Degree Days

Years on Record: 11

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		800		---		---		---		---		---		180		356.5		263.5		---		---		---		---

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		14.3		15.8		16.6		16.2		14.8		13		11.3		9.8		9.1

Average Wind Speed

Years on Record: 1

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mph		---		5.7		---		---		---		---		---		---		---		---		---		---		---

Highest Reported Hourly Wind Speed

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mph		39.1		25.5		39.1		28.6		31.1		37.9		32.3		33.6		24.2		27.3		28.6		27.3		32.3

Highest Reported Wind Gust

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mph		55.3		47.2		44.7		49.7		43.5		49.7		48.5		55.3		39.1		46		51.6		46		39.1

Avg. # of Days w/Wind Above 32 mph/52 km/h

Years on Record: 14

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		0.7		0.1		---		---		---		0.1		---		0.1		0.1		0.1		0.2		---		---

Avg. # of Days w/Wind Above 39 mph/63 km/h

Years on Record: 14

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

Average Primary Wind Direction

Years on Record: 1

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
°		---		225		---		---		---		---		---		---		---		---		---		---		---

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.4		1.4		2.4		3.6		4.7		5.3		5.7		5.5		4.6		3.2		2.1		1.3		1.1

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.7		0.8		1.2		1.7		2.1		2.5		2.7		2.6		2.2		1.7		1.1		0.8		0.7

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.8		2.5		3.8		4.8		5		4.9		5		4.9		4.6		3.6		2.8		2.3		2

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.6		2.2		3.3		4.1		4.8		4.8		5		4.8		4.2		3.1		2.5		1.9		1.8

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.4		1.4		2.4		3.6		4.7		5.3		5.7		5.5		4.6		3.2		2.1		1.3		1.1

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.7		0.9		1.3		1.9		2.1		2.5		2.7		2.6		2.3		1.7		1.3		0.9		0.8

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.4		2.7		4.1		5.5		5.7		5.7		5.6		5.7		5.2		4.2		3.6		2.7		2.5

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.4		2.6		3.7		4.9		6		6.3		6.4		6.5		5.3		3.8		3.3		2.3		2.3

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2.8		1.3		2.1		3		4.2		4.2		4.6		4.7		3.6		2.5		1.7		1.1		0.9

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.6		0.8		1.1		1.6		2.1		2.5		2.6		2.5		2.2		1.6		1		0.7		0.6

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.1		2.2		3.3		3.9		4.3		3.8		4		4.2		3.4		2.7		2.1		1.6		1.5

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2.5		2		2.9		3.1		3.7		2.9		3.1		3.5		2.4		2		1.8		1.3		1.3