WILLIAM HEAD, BRITISH COLUMBIA

Average Temperature

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		10.5		5.7		6.1		7.5		9.4		12.1		14.6		16.4		16.5		14		10.4		7.3		5.4

Average High Temperature

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		13.9		8		8.8		10.5		12.9		16		18.9		21.2		21.4		18.2		13.4		9.7		7.7

Average Low Temperature

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		7		3.4		3.4		4.5		5.8		8.1		10.2		11.6		11.6		9.7		7.4		4.8		3.2

Highest Recorded Temperature

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		31.1		17		16.7		20		23		28.9		29.4		31		31.1		26.5		22		17.2		16

Lowest Recorded Temperature

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-13.9		-8.5		-11		-4.5		-0.6		1.1		3.9		6		5		2.2		-1.5		-9.5		-13.9

Average Number of Days Above 95F/35C

Years on Record: 27

ANNUAL

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

Days

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Average Number of Days Above 86F/30C

Years on Record: 27

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

Average Number of Days Above 70F/21C

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		56.9		---		---		---		0.3		3		8		18.5		20.3		6.7		0.2		---		---

Average Number of Days Above 50F/10C

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		252.2		5.2		7.6		15.8		25.5		30.8		30		31		31		30		28.8		13		3.6

Average Number of Days Above 32F/0C

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		363.3		30.5		28.1		31		30		31		30		31		31		30		31		29.4		30.3

Average Number of Days Below 35F/2C

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		41		9.7		9		5.4		1.6		0.1		---		---		---		---		0.2		5.1		10.1

Average Number of Days Below 32F/0C

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		17		4.9		3.8		1.2		0.2		---		---		---		---		---		---		1.9		4.9

Average Number of Days Below 28F/-2C

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4.6		1.4		1		0.2		---		---		---		---		---		---		---		0.8		1.2

Average Number of Days Below 10F/-12C

Years on Record: 27

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

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

Years on Record: 27

ANNUAL

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

Days

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

Years on Record: 27

ANNUAL

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

Days

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Average Precipitation

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		944.1		153.8		97.9		80.1		53.1		37.6		28.3		16.6		22.1		31.4		108.9		183.1		131.4

Average Number of Days With Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		156.5		18.4		16.4		16.7		13.6		10.8		8.2		5.3		5.6		7.9		14.5		19.4		19.7

Most Precipitation Reported in a Day

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		91.6		82.3		67.3		47.8		60.2		50.8		19.6		20.8		38.4		40.5		76		91.6		66.3

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

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		165.1		20.5		16.4		17.8		14.8		11.9		9		5.2		4.9		7.7		16.9		20.4		19.7

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

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		59.1		9.2		6.6		5.7		3		2.4		1.9		1.1		1.5		2.1		6.6		10.8		8.3

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

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		28.1		4.5		2.9		2		1.2		0.6		0.6		0.3		0.8		0.9		3.5		6		4.6

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

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5.6		1.4		0.6		0.2		0.2		---		---		---		---		0.1		0.8		1.5		0.9

Average Rainfall

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		930.3		150.1		94.3		78.6		53.1		37.6		28.3		16.6		22.1		31.4		108.8		180.7		128.8

Average Number of Rainy Days

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		163.7		20.3		16.1		17.6		14.8		11.9		9		5.2		4.9		7.7		16.9		20.2		19.2

Most Rain Reported in a Day

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		91.6		82.3		67.3		47.8		60.2		50.8		19.6		20.8		38.4		40.5		76		91.6		66.3

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

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		57.8		9		6.3		5.5		3		2.4		1.9		1.1		1.5		2.1		6.6		10.5		8

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

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		27.8		4.6		2.8		1.9		1.2		0.6		0.6		0.3		0.8		0.9		3.5		6		4.5

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

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5.6		1.4		0.6		0.2		0.2		---		---		---		---		0.1		0.8		1.5		0.9

Average Snowfall

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		13.8		3.7		3.6		1.5		---		---		---		---		---		---		0.1		2.4		2.6

Average Number of Days With Snow

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4.5		1.7		0.9		0.2		---		---		---		---		---		---		---		0.6		1

Average Snow Cover

Years on Record: 26

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		0.1		0.1		---		---		---		---		---		---		---		---		---		0.3		0.2

Average Snow Cover at Month End

Years on Record: 27

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

Deepest Snow Cover Reported

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		49		15		6		8		---		---		---		---		---		---		---		32		49

Most Snow Reported in a Day

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		26		16		12		14.2		---		---		---		---		---		---		2		14		26

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

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3.9		1.2		0.8		0.6		---		---		---		---		---		---		---		0.6		0.7

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

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1.1		0.3		0.3		0.1		---		---		---		---		---		---		---		0.2		0.2

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

Years on Record: 27

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

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

Years on Record: 27

ANNUAL

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

Days

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

Years on Record: 26

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1.5		0.9		0.3		---		---		---		---		---		---		---		---		---		0.2

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

Years on Record: 26

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

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

Years on Record: 26

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

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

Years on Record: 26

ANNUAL

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

Days

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Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1609.9		225.3		193.2		188.8		149.7		106.7		66.2		35.4		34.4		73.1		135.3		182.3		219.5

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		7.1		---		---		---		---		0.1		0.7		3		3.2		0.2		---		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		668.9		---		---		---		---		55.1		123.3		186		189.4		111.7		3.4		---		---

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		15.9		16.7		16.3		14.8		13		11.3		9.8		9

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.2		3.7		6.9		10.6		15.1		18.6		20.4		21.9		19.4		14.7		8.1		4.2		3.1

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		2.4		3.8		5.8		7.6		9		9.6		9.2		8		6.6		4.2		2.7		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		13.1		5.8		9.9		12.6		15.6		17.1		17.7		19.5		19.4		17.1		11		6.7		5.1

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.5		5.2		8.9		10.6		13.8		16.2		17.9		21.1		20.2		16.4		10		5.6		4.5

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.2		3.7		6.9		10.6		15.1		18.6		20.4		21.9		19.4		14.7		8.1		4.2		3.1

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.3		2.8		4.4		6.3		7.7		9.1		9.7		9.5		8.2		7.1		5		3.1		2.3

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.9		7.6		12.5		16.6		19.7		21.2		19.8		22.8		21.7		19.9		14.4		8.9		6.2

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.5		7.1		11.6		15.3		20.3		23.8		22.1		26.7		23.6		19.9		13.8		8		5.7

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.1		3.1		4.7		8.2		11.8		16.2		17.2		18.1		16.5		12.7		6.4		3.6		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		5.6		2.1		3		5.3		7.5		8.8		9.4		9.1		7.9		6.2		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		10.5		4.5		6.2		9.2		11.7		14.8		15		16.1		16.2		14.5		8.4		5.3		4.1

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		8.8		3.7		4.9		6.4		8		12		12.5		14.7		14.8		13.3		7.3		4.1		3.4