NORTHAM, WESTERN AUSTRALIA

Average Temperature

Years on Record: 81

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		18		25		25		23		19		14		12		11		11		13		16		20		23

Average High Temperature

Years on Record: 81

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		25.2		34.1		33.5		30.7		26		20.9		17.7		16.8		17.8		20.4		23.7		28.3		32

Average Low Temperature

Years on Record: 80

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		11		17.1		17.1		15.4		12		8.5		6.5		5.5		5.7		7		9		12.4		15.4

Highest Recorded Temperature

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		45.8		45.8		45.5		42.2		39.5		35.1		26.2		25		26.5		33.3		39.3		42.5		44

Lowest Recorded Temperature

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-1.5		8.5		8.5		6.8		3.4		-0.6		-1		-1.5		-1		-1		0.5		2.1		6.8

Average Morning Temperature

Years on Record: 26

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		17		24.2		23.3		21.3		17.6		13		10.4		9.4		10.5		13		16.9		20.1		23.3

Average Afternoon Temperature

Years on Record: 24

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		24.3		33.1		32.5		29.9		25.2		20.4		17		16.2		16.9		19.2		23		26.9		31.1

Average Number of Days Above 104F/40C

Years on Record: 26

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		10.2		4.4		2.8		0.8		---		---		---		---		---		---		---		0.2		2.1

Average Number of Days Above 95F/35C

Years on Record: 26

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		45.9		14.2		10.9		6.6		0.7		---		---		---		---		---		0.7		3.4		9.2

Average Number of Days Above 86F/30C

Years on Record: 26

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		105.2		24.8		21.5		17.3		5.9		0.3		---		---		---		0.5		4.1		9.9		21.1

Average Number of Days Below 35F/2C

Years on Record: 26

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		14.1		---		---		---		---		0.7		3		4.2		4		1.9		0.3		---		---

Average Number of Days Below 32F/0C

Years on Record: 26

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1.8		---		---		---		---		0.1		0.4		0.8		0.4		0.1		---		---		---

Average Precipitation

Years on Record: 116

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		430		---		10		10		20		50		80		80		60		30		20		10		---

Average Number of Rainy Days

Years on Record: 93

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		90.3		1.7		2.1		3		5.5		10.4		14.6		15.7		13.6		10.4		7.4		3.8		2.2

Most Rain Reported in a Day

Years on Record: 92

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		120		100		110		120		70		60		60		50		30		30		50		30		40

Most Rain Reported in a Month

Years on Record: 116

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		230		110		180		180		80		140		230		220		170		120		100		80		60

Average Morning Relative Humidity

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		67		48		54		57		69		83		88		89		83		75		63		54		48

Average Evening Relative Humidity

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		43		26		30		33		41		53		61		62		58		50		41		33		27

Average Morning Dew Point

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		10.4		12.4		13.5		12.5		11.9		9.9		8.3		7.8		8		8.6		9.7		9.9		11.6

Average Afternoon Dew Point

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		9.9		10.9		12.3		11.6		11.1		10.2		9.4		8.8		8.5		8.6		8.7		8.4		9.9

Average Morning Web Bulb

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		13.5		17.5		17.5		16.3		14.5		11.3		9.2		8.7		9.5		10.8		13.1		14.5		16.5

Average Afternoon Wet Bulb

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		16.2		20		20.3		19		17.3		14.7		13		12.3		12.6		13.7		15.2		16.7		18.8

Heating Degree Days

Years on Record: 81

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		978.7		---		---		---		---		120.6		200		232.5		206.7		150		68.9		---		---

Cooling Degree Days

Years on Record: 81

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		878.7		215.3		188.3		137.8		8.3		---		---		---		---		---		---		50		155

Growing Degree Days

Years on Record: 81

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3150.5		473.6		423.8		396.1		258.3		137.8		50		25.8		51.7		100		189.4		300		413.3

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.5		14.4		13.6		12.7		11.7		10.9		10.6		10.8		11.4		12.3		13.3		14.2		14.6

Average Number of Clear Days

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		107.4		14.8		11.9		11.8		8.6		6.4		5.1		4.4		5.7		7		8		9.1		14.7

Average Number of Cloudy Days

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		74.3		2.9		3.9		5.1		7.4		8		8.7		9.9		8.5		6.5		6.2		4.6		2.5

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18.9		27.7		24.2		19.5		14.9		11.2		9.7		10.6		13.4		17.7		23.1		26.2		28.1

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.5		7.5		7		6		4.6		3.6		3.1		3.3		4.1		5.3		6.3		7.5		7.8

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		20		24.6		23.4		20.9		18.4		15.3		14.5		15.2		16.9		20.1		22.9		23.8		24.4

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		22.5		29.8		26.1		22.1		19.1		16.8		16.1		16.9		18.3		21.1		25.9		27.9		29.8

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18.9		27.7		24.2		19.5		14.9		11.2		9.7		10.6		13.4		17.7		23.1		26.2		28.1

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.1		8.6		7.7		6.6		5.1		4		3.4		3.6		4.6		5.9		7.1		8.3		8.3

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		22.6		26.3		25.1		23.8		22.9		19.3		17.5		16.6		19.6		23.1		25.1		25.9		25.6

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		27.2		34.1		29.7		27.4		26.6		23.2		21		19.2		23.1		26.5		30.4		32.9		32.9

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.9		24.6		21.9		17.3		13.2		9.2		8.8		9.4		11.7		15.6		20.8		23.8		26.8

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		4.8		6.6		6.3		5.1		3.5		2.8		2.6		3		3.5		4.4		5.4		6.4		7.2

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.6		22		21.1		18.2		15.8		11.9		12.5		13		14.2		17.3		20.5		21.7		23.4

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18.1		23.5		21.5		17.4		15.1		11.5		13.1		13.5		14.2		16.5		21.1		23		27.1