NORTHAMPTON, WESTERN AUSTRALIA

Average Temperature

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		19		25		26		25		21		18		15		14		14		15		17		20		23

Average High Temperature

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		26.7		33.8		34.2		32.4		28.8		24.4		21.6		20		20.6		22.9		25.8		28.1		31.1

Average Low Temperature

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		12.5		17.6		18.5		17.6		14.9		11.9		10		8.2		7.9		7.8		9.7		13		15.1

Highest Recorded Temperature

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		48.7		47.3		48.7		44.6		39.2		34.3		29.4		28.7		30.2		33.8		41.5		41.5		45

Lowest Recorded Temperature

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-1		6.5		7.9		9		9		3.5		1.3		-1		---		-1		2.8		4.5		5.6

Average Morning Temperature

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		21.6		28.3		28.4		26.6		22.8		18.8		16		14.8		15.6		18.1		21.4		24.1		26.7

Average Number of Days Above 104F/40C

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		15.6		5.2		4.6		2.2		---		---		---		---		---		---		0.2		0.4		3

Average Number of Days Above 95F/35C

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		46.5		11.5		10.9		10.2		2.3		---		---		---		---		---		1.6		2.8		7.3

Average Number of Days Above 86F/30C

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		97.8		18.3		17.8		18.9		11.5		2.1		---		---		0.1		1.8		5.6		8.3		13.4

Average Number of Days Below 35F/2C

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2.9		---		---		---		---		---		0.3		0.8		1		0.8		---		---		---

Average Number of Days Below 32F/0C

Years on Record: 13

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

Average Precipitation

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		420		---		10		10		20		70		90		70		60		20		10		10		---

Average Number of Rainy Days

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		73.2		1		2.1		2.7		5.4		9.6		11.4		12		10.7		7.8		5.3		4.1		1.1

Most Rain Reported in a Day

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		80		---		40		60		50		80		70		50		40		20		10		10		10

Most Rain Reported in a Month

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		180		10		50		60		90		150		180		150		100		40		50		20		10

Least Rain Reported in a Month

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		---		---		---		---		---		10		30		10		30		---		---		---		---

Heating Degree Days

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		485		---		---		---		---		17.2		83.3		137.8		129.2		91.7		25.8		---		---

Cooling Degree Days

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1031.1		215.3		219.7		198.1		91.7		---		---		---		---		---		---		58.3		137.8

Growing Degree Days

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3796.6		473.6		455.2		456.4		341.7		241.1		166.7		120.6		129.2		158.3		232.5		308.3		396.1

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.5		14.1		13.5		12.6		11.8		11.1		10.8		11		11.5		12.3		13.2		14		14.4

Average Number of Clear Days

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		152.6		16.3		12.3		14.2		11.2		10.7		10.4		12.3		12.6		13.5		13.5		11.8		13.9

Average Number of Cloudy Days

Years on Record: 13

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		63		2.8		3.2		5.1		5.6		7.1		7.8		6.5		6.3		4.9		5.3		5.3		3.2

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		21.1		28.7		25.7		21.8		17.1		13.6		12.1		12.9		16.3		21.3		25.7		28.2		29.6

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.2		7.1		6.7		5.7		4.6		3.6		3.2		3.3		3.8		4.6		5.6		6.7		7.1

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		22.2		25.5		24.6		23		20.5		17.6		16.8		17.4		20.7		23.8		25.3		25.5		25.7

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		26		31.3		28		25.3		22.1		20.2		19.7		20.4		23.3		27.4		30.2		31.3		32.6

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		21.1		28.7		25.7		21.8		17.1		13.6		12.1		12.9		16.3		21.3		25.7		28.2		29.6

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6		8.2		7.6		6.8		5.4		4.3		3.6		4		4.8		5.3		6.7		7.8		7.7

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		24.7		27.7		27.4		25.7		23.4		21.4		19.5		20.8		23.4		25.3		27		27.5		27.5

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		31.1		37.2		34.6		30.5		27.2		27		24.3		26.3		27.9		30.2		34		36.4		37.4

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18.8		26		23.2		18.4		14.7		11.4		10.6		10.6		13.8		19.8		23.1		25.4		28.1

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		4.2		5.8		5.3		4.7		3.8		2.6		2.6		2.5		3.1		4		4.7		5.5		6

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.4		23.3		22.2		19		17		14.2		14.2		13.5		16.9		21.9		22.6		23.2		24.6

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		20.7		26		23		18.2		16.4		14.5		15.4		13.9		16.9		23.7		24.7		25.7		29.6