NORTHAM, WESTERN AUSTRALIA

Average Temperature

Years on Record: 81

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		64		77		77		73		65		58		53		51		53		56		61		68		74

Average High Temperature

Years on Record: 81

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		77		93		92		87		78		69		63		62		64		68		74		82		89

Average Low Temperature

Years on Record: 80

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		51		62		62		59		53		47		43		41		42		44		48		54		59

Highest Recorded Temperature

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		114		114		113		107		103		95		79		77		79		91		102		108		111

Lowest Recorded Temperature

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		29		47		47		44		38		30		30		29		30		30		32		35		44

Average Morning Temperature

Years on Record: 26

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		62		75		73		70		63		55		50		48		50		55		62		68		73

Average Afternoon Temperature

Years on Record: 24

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		75		91		90		85		77		68		62		61		62		66		73		80		87

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
in		17		---		---		---		---		2		3		3		2		1		---		---		---

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
in		4		4		4		4		2		2		2		2		1		1		2		1		1

Most Rain Reported in a Month

Years on Record: 116

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		9		4		7		7		3		5		9		8		6		5		3		3		2

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
F		50		54		56		54		53		49		46		46		46		47		49		49		52

Average Afternoon Dew Point

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		49		51		54		52		51		50		48		47		47		47		47		47		49

Average Morning Web Bulb

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		56		63		63		61		58		52		48		47		49		51		55		58		61

Average Afternoon Wet Bulb

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		61		68		68		66		63		58		55		54		54		56		59		62		65

Heating Degree Days

Years on Record: 81

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1761.5		---		---		---		---		217		360		418.5		372		270		124		---		---

Cooling Degree Days

Years on Record: 81

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1358.5		387.5		339		248		15		---		---		---		---		---		---		90		279

Growing Degree Days

Years on Record: 81

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5075.8		852.5		762.8		713		465		248		90		46.5		93		180		341		540		744

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
kWh/m2		5.2		7.7		6.7		5.4		4.1		3.1		2.7		2.9		3.7		4.9		6.4		7.3		7.8

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.5		2.1		1.9		1.7		1.3		1		0.9		0.9		1.2		1.5		1.8		2.1		2.2

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.6		6.8		6.5		5.8		5.1		4.3		4		4.2		4.7		5.6		6.4		6.6		6.8

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6.3		8.3		7.3		6.1		5.3		4.7		4.5		4.7		5.1		5.9		7.2		7.7		8.3

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.2		7.7		6.7		5.4		4.1		3.1		2.7		2.9		3.7		4.9		6.4		7.3		7.8

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.7		2.4		2.2		1.8		1.4		1.1		0.9		1		1.3		1.7		2		2.3		2.3

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6.3		7.3		7		6.6		6.4		5.4		4.9		4.6		5.5		6.4		7		7.2		7.1

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		7.6		9.5		8.3		7.6		7.4		6.5		5.8		5.3		6.4		7.4		8.4		9.2		9.2

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.7		6.8		6.1		4.8		3.7		2.6		2.4		2.6		3.2		4.3		5.8		6.6		7.4

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.3		1.8		1.8		1.4		1		0.8		0.7		0.8		1		1.2		1.5		1.8		2

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.9		6.1		5.9		5.1		4.4		3.3		3.5		3.6		3.9		4.8		5.7		6		6.5

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5		6.5		6		4.8		4.2		3.2		3.6		3.8		3.9		4.6		5.9		6.4		7.5