WILUNA, WESTERN AUSTRALIA

Average Temperature

Years on Record: 91

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		70		86		84		80		71		61		55		53		57		64		71		78		83

Average High Temperature

Years on Record: 91

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		84		99		97		93		84		74		67		66		70		79		86		93		98

Average Low Temperature

Years on Record: 91

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		57		73		71		67		58		49		44		41		44		49		56		64		69

Highest Recorded Temperature

Years on Record: 38

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		116		116		116		110		104		98		89		84		92		99		106		109		116

Lowest Recorded Temperature

Years on Record: 38

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		28		46		53		48		39		30		30		28		28		34		39		39		46

Average Morning Temperature

Years on Record: 92

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		70		86		83		79		70		61		54		52		57		64		72		79		84

Average Afternoon Temperature

Years on Record: 92

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		82		97		95		91		82		73		66		65		69		77		84		91		95

Average Number of Days Above 104F/40C

Years on Record: 38

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		30.5		12.4		6.4		3		---		---		---		---		---		---		0.2		1.9		6.6

Average Number of Days Above 95F/35C

Years on Record: 38

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		104.9		25.5		18.7		15.1		3.2		0.1		---		---		---		0.4		6.2		13.2		22.5

Average Number of Days Above 86F/30C

Years on Record: 38

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		174.7		29.2		25.1		25.3		14.4		2.7		0.1		---		0.7		6.9		17.4		24.4		28.5

Average Number of Days Below 35F/2C

Years on Record: 38

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		11.4		---		---		---		---		0.5		2.2		5.7		2.9		0.1		---		---		---

Average Number of Days Below 32F/0C

Years on Record: 38

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2.2		---		---		---		---		---		0.4		1.3		0.4		---		---		---		---

Average Precipitation

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		9		1		1		1		1		1		1		---		---		---		---		---		---

Average Number of Rainy Days

Years on Record: 91

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		40		3.9		3.9		4.3		3.5		4		5		3.8		2.9		1.6		1.6		2.3		3.2

Most Rain Reported in a Day

Years on Record: 91

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		4		3		4		3		2		2		2		2		1		1		3		1		4

Most Rain Reported in a Month

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		20		9		10		9		20		5		4		5		2		2		3		2		6

Average Morning Relative Humidity

Years on Record: 47

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		43		31		37		39		46		55		65		62		51		38		32		28		29

Average Evening Relative Humidity

Years on Record: 46

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		26		20		24		25		29		34		41		37		29		22		18		17		18

Average Morning Dew Point

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		43		48		52		49		47		42		42		38		37		37		37		41		46

Average Afternoon Dew Point

Years on Record: 27

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		40		44		50		47		45		40		40		36		34		33		32		37		41

Average Morning Web Bulb

Years on Record: 81

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		57		66		66		63		58		52		48		46		48		52		56		61		64

Average Afternoon Wet Bulb

Years on Record: 80

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		61		70		70		68		63		57		53		52		54		58		61		65		68

Heating Degree Days

Years on Record: 91

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1028		---		---		---		---		108.5		285		356.5		248		30		---		---		---

Cooling Degree Days

Years on Record: 91

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2997.3		651		536.8		465		180		---		---		---		---		---		186		405		573.5

Growing Degree Days

Years on Record: 91

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		7448		1116		960.5		930		630		356.5		165		108.5		217		420		651		855		1038.5

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		13.4		12.6		11.8		11.2		10.9		11.1		11.6		12.3		13.1		13.8		14.2

Average Number of Clear Days

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		172.2		11.5		10.7		12.2		10.5		13.3		12.7		16.3		18.2		19.4		19.2		14.6		13.7

Average Number of Cloudy Days

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		50.4		3.6		5.2		5.1		6		5.5		6.4		5.4		3.1		1.6		2		3.1		3.5

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.9		7.7		6.8		5.9		4.7		4		3.5		3.9		5		6.4		7.3		7.8		7.9

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.4		2.1		2		1.7		1.3		1		0.9		0.8		0.9		1.1		1.5		1.9		2.1

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6.2		6.8		6.5		6.2		5.6		5.1		4.9		5.3		6.4		7.1		7.1		7.1		6.9

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		7.3		8.1		7.1		6.6		5.9		6		5.8		6.5		7.5		8.5		8.6		8.6		8.4

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.9		7.7		6.8		5.9		4.7		4		3.5		3.9		5		6.4		7.3		7.8		7.9

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		2.5		2.3		2		1.5		1.2		1.1		1.1		1.2		1.3		2		2.3		2.4

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		7.1		7.5		7.4		7.2		6.8		6.1		5.8		6.1		7.1		7.6		7.8		7.8		7.6

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		9		9.6		9.2		8.6		8.1		7.8		7.4		7.9		8.8		9.4		10		10.4		10.3

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5		6.5		5.5		4.9		4		3.2		2.7		3.1		4.4		6		6.2		6.7		7.1

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.1		1.8		1.6		1.3		1		0.7		0.6		0.6		0.7		0.9		1.2		1.5		1.7

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.2		5.9		5.3		5.1		4.6		3.9		3.5		4		5.4		6.6		6.1		6.1		6.3

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.3		5.8		4.7		4.6		4.4		3.9		3.5		4.2		5.8		7.6		6.4		6.4		6.9