STILLWATER POWER HOUSE, BRITISH COLUMBIA

Average Precipitation

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1437.9		193.3		130.3		130.6		99.6		92.4		73.7		46		50.7		64.6		152.3		216.9		187.5

Average Number of Days With Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		170.9		18		16.5		17.1		14.3		12.7		11.2		7.5		8		10.3		15.8		20.6		19

Most Precipitation Reported in a Day

Years on Record: 76

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		96.5		96.5		72.9		79.8		52.4		42.9		58.2		53		63.5		75		64		71.6		79.5

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		177.8		19.7		15.9		18.2		15.7		13.4		11.1		8		7.9		10		17.4		21.2		19.4

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		86.2		11.4		7.6		8.2		6.7		5.9		4.7		2.8		3		3.8		8.9		12.6		10.6

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		52.5		7.2		4.8		4.6		3.6		3.3		2.9		1.6		1.7		2.4		5.5		8		7

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		10.9		1.9		0.9		0.8		0.5		0.6		0.3		0.2		0.4		0.3		1.3		2		1.7

Average Rainfall

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1408.7		185.2		125.5		127.8		99.6		92.4		73.7		46		50.7		64.6		152.1		212.6		178.5

Average Number of Rainy Days

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		174.8		18.9		15.2		18		15.7		13.4		11.1		8		7.9		10		17.4		20.9		18.5

Most Rain Reported in a Day

Years on Record: 76

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		96.5		96.5		70.1		79.8		52.4		42.9		58.2		53		63.5		75		64		71.6		79.5

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		83.9		10.7		7.2		8		6.7		5.9		4.7		2.8		3		3.8		8.9		12.3		9.9

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		51.2		6.8		4.6		4.3		3.6		3.3		2.9		1.6		1.7		2.4		5.5		7.9		6.7

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		10.9		1.9		0.9		0.8		0.5		0.6		0.3		0.2		0.4		0.3		1.3		2		1.7

Average Snowfall

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		29.2		8.1		4.8		2.7		---		---		---		---		---		---		0.2		4.4		9

Average Number of Days With Snow

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6.4		2.1		1.3		0.5		---		---		---		---		---		---		---		0.8		1.6

Average Snow Cover

Years on Record: 26

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

Average Snow Cover at Month End

Years on Record: 27

ANNUAL

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

cm

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Deepest Snow Cover Reported

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		15		7		5		---		---		---		---		---		---		---		---		---		15

Most Snow Reported in a Day

Years on Record: 76

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		53.3		53.3		30.5		17.8		6.4		---		---		---		---		---		5.2		24.6		49.5

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		6.3		1.9		1.2		0.7		---		---		---		---		---		---		---		0.8		1.7

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		2.3		0.6		0.3		0.2		---		---		---		---		---		---		---		0.4		0.8

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		1		0.3		0.2		0.1		---		---		---		---		---		---		---		0.1		0.4

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		0.8		0.4		---		---		---		---		---		---		---		---		---		---		0.4

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		0.3		---		---		---		---		---		---		---		---		---		---		---		0.3

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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Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.8		9.3		10.7		12.5		14.4		16.1		17		16.5		14.9		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		12.5		4.1		7.4		11.6		16.4		19.5		20.8		21.5		18.4		14.2		8.3		4.7		3.4

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		2.5		4		5.9		7.5		9		9.7		9.3		8.1		6.5		4.3		2.8		2.1

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.1		7.5		11.9		15.2		17.5		17.9		18		19.1		18.4		16.8		11.7		8.3		6.5

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.6		6.6		10.4		13.1		16.9		18.1		18.7		20.8		18.6		16.2		10.8		7.2		5.8

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.5		4.1		7.4		11.6		16.4		19.5		20.8		21.5		18.4		14.2		8.3		4.7		3.4

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		4.3		6.4		7.6		9.2		9.8		9.7		8.5		7.2		5		3.1		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		16.7		9.1		13.4		17.8		20.6		20.3		21.2		22.7		22.3		20.8		14.6		10.1		7.3

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.4		8.3		11.8		16.9		21.7		22.5		25		26.8		24.5		21.1		14.1		8.8		6.5

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.7		3.5		5.6		10		14.3		17		17.9		18.9		15.5		11.6		7.3		4.1		3

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.7		2.2		3.3		5.6		7.5		8.9		9.6		9.2		8		6		4		2.6		1.9

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.7		6.2		8.3		12.5		14.7		15.5		15.5		16.7		15.2		13.3		10.2		7		5.7

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.3		5.3		7		10.2		12.6		13.6		13.5		16.1		13.3		11.9		9.2		6		4.9