ROXBURGH HYDRO, NEW ZEALAND

Average Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		10.9		16.6		16.1		14		11		8		5.3		4.6		6.6		9.1		11.2		13		15

Average High Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		16.7		23.2		22.9		20.5		17.3		12.8		9.5		8.7		11.9		14.9		17.4		19.6		21.2

Average Low Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		5.1		9.9		9.2		7.4		4.8		3.1		1.2		0.4		1.3		3.3		5		6.5		8.9

Highest Recorded Temperature

Years on Record: 23

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		35.9		35		35.9		32		27.5		24		20		19.3		19.4		25		29.5		33		33

Lowest Recorded Temperature

Years on Record: 23

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		---		1.5		---		---		---		1		---		---		---		---		---		---		---

Average Number of Days Above 80F/26C

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		31.6		9.3		8.8		4.2		0.4		---		---		---		---		---		0.3		2.3		6.3

Average Rainfall

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		133.5		11.8		9.3		14.6		9.9		13.3		8.9		9.9		7.3		9.3		13		10.2		16

Average Number of Rainy Days

Years on Record: 23

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		122.9		10.6		8.6		9.7		10.1		11.8		9.3		9.5		9.2		10.4		11.5		10.3		11.9

Average Number of Days With Thunderstorms

Years on Record: 11

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

Most Rain Reported in a Day

Years on Record: 23

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		97		42.4		31		62.5		30.4		30		30		24		20		55.5		97		20		39

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

Years on Record: 23

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		87.7		7.8		6.6		7.3		7.1		8.1		6.1		6.7		6		7.1		8.2		7.8		8.9

Most Rain Reported in an Hour

Years on Record: 15

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		16.2		8.4		6.4		10		7.4		7.1		7.8		6		7.4		5.6		10.3		16.2		11.4

Most Rain Reported in 6 Hours

Years on Record: 15

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		52.6		21.6		26.1		30.2		27.2		18.7		19.1		12.5		20		17.5		52.6		19.1		25.7

Most Rain Reported in 48 Hours

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		112		54.2		43		79.5		35		34		46.5		36.2		23.4		27.9		112		25.7		39

Most Rain Reported in 72 Hours

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		112.5		59.8		43		79.5		36.8		35		48		46.2		27		30		112.5		25.7		39.2

Most Rain Reported in 1/2 Hour

Years on Record: 15

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		15.8		6.8		4.4		6.4		5.3		4.8		5		4.2		4.8		4.6		7.2		15.8		9.6

Average Number of Days With Snow

Years on Record: 10

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2.2		---		---		0.2		---		---		0.6		0.8		0.2		0.1		0.3		---		---

Average Number of Days With Frost

Years on Record: 23

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		44.3		---		---		---		1.3		4.6		11.3		11.6		10.3		3.8		1.1		0.3		---

Average Morning Relative Humidity

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		82.2		80.2		83.7		84.9		84.5		83.4		83.6		83.8		83.8		80.8		78.3		79		80.3

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2762.1		52.7		68.2		133.3		226.3		319.3		403		424.7		362.7		285.2		220.1		164.3		102.3

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		813.1		204.6		172.3		124		30		---		---		---		---		---		37.2		90		155

Average Vapor Pressure

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mbar		9.4		12.4		12.1		11.6		9.7		7.8		6.8		6.6		6.9		7.9		9.3		10.3		11.9

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.7		15.8		14.5		12.9		11.3		10		9.3		9.7		10.8		12.3		13.9		15.4		15.8

Average Number of Days With Fog

Years on Record: 11

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		11.7		0.3		0.9		2.8		1.9		1.9		0.7		0.6		1.2		1.1		---		0.2		0.1

Average Percent of Cloud Cover

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		65.7		68.8		66.3		67.5		63.8		66.3		60		63.8		61.3		62.5		68.8		68.8		71.3

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.8		21.2		18.9		14.6		9.7		6.2		4.4		4.8		7.1		10.8		15.2		19.6		21.1

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.4		8.9		7.3		5.4		3.6		2.4		1.9		2.2		3.2		4.8		6.8		8.4		9.4

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		18.9		18.8		17.1		13.8		11.2		8.3		9.1		10.5		13.2		15.6		18		18.3

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.7		19.9		19.7		17.8		14.7		11.7		9.1		9.1		10.3		12.5		14.7		18.2		18.7

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.8		21.2		18.9		14.6		9.7		6.2		4.4		4.8		7.1		10.8		15.2		19.6		21.1

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.5		9.2		7.6		5.8		3.8		2.5		1.9		2.2		3.2		4.9		7		8.7		9.6

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.7		21.5		21.1		21.3		16.9		14.5		10		11.5		14.9		17.8		20.1		21.2		21.2

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		20.1		25.3		24		24.8		19.3		16.2		11.6		12.1		16.5		19.3		22.6		24.7		25

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.4		18.5		17		11.9		7.3		4.9		3.5		3.7		5.4		8.1		12.3		14.8		17

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		4.9		8.3		6.8		4.6		3.2		2.1		1.8		2.1		2.9		4.4		6.2		7.9		8.9

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.1		16.5		16.8		13.2		9.4		8.1		6		6		7.2		9.2		12.3		13.5		14.9

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		9.6		15		16.1		11.8		8.5		7.6		5.9		5.3		6		7		9.6		10.2		11.9