DONNYBROOK, WESTERN AUSTRALIA

Average Temperature

Years on Record: 89

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		16		22		22		20		17		13		11		11		11		12		14		17		20

Average High Temperature

Years on Record: 89

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		22.9		30.4		30.3		27.9		23.9		19.8		17.3		16.4		17.2		18.8		21		24.6		28.1

Average Low Temperature

Years on Record: 89

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		9.5		13.7		14.1		12.7		10.2		8.1		6.6		5.6		6		7		8.2		10.2		12.2

Highest Recorded Temperature

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		43.5		43.5		43.5		40.1		35.3		29.4		28.5		23.7		25		30		35		37.8		42.6

Lowest Recorded Temperature

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-3		3.4		4.5		2.8		-0.2		-0.6		-2		-3		-1.5		-1.6		---		2		3.4

Average Morning Temperature

Years on Record: 53

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		15.7		21.9		21.4		19.6		16		12.6		10.6		9.6		10.6		12.9		15.6		18.3		20.7

Average Afternoon Temperature

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		21.9		29.8		29.4		27.1		22.5		18.8		16.4		15.5		16		17.7		20.1		23.2		27

Average Number of Days Above 104F/40C

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1.2		0.8		0.3		0.1		---		---		---		---		---		---		---		---		0.1

Average Number of Days Above 95F/35C

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		17.9		6.4		5.5		2.3		---		---		---		---		---		---		---		0.4		3.1

Average Number of Days Above 86F/30C

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		62.2		17.3		15.4		10.7		2.1		---		---		---		---		---		0.9		4.4		11.4

Average Number of Days Below 35F/2C

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		13.3		---		---		---		0.2		0.6		2.5		3.9		3.1		1.9		0.9		0.1		---

Average Number of Days Below 32F/0C

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2		---		---		---		0.1		0.1		0.5		0.5		0.5		0.2		0.1		---		---

Average Precipitation

Years on Record: 96

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		990		10		10		20		50		130		190		190		140		100		60		30		10

Average Number of Rainy Days

Years on Record: 89

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		136		3.1		3.3		4.7		8.7		15.3		18.8		21.2		19.6		16.1		12.6		8.1		4.6

Most Rain Reported in a Day

Years on Record: 90

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		120		100		70		60		120		110		90		60		70		50		40		40		30

Most Rain Reported in a Month

Years on Record: 96

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		430		130		90		110		160		280		430		400		330		250		160		120		70

Least Rain Reported in a Month

Years on Record: 96

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

Average Morning Relative Humidity

Years on Record: 53

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		64		50		53		57		67		76		79		79		75		69		60		54		50

Average Evening Relative Humidity

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		46		31		33		35		46		56		61		60		55		51		46		40		34

Average Morning Dew Point

Years on Record: 34

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		9.5		11.7		12.2		11.5		10.9		9.3		8		7.1		7.2		8.1		8.7		9.4		10.6

Average Afternoon Dew Point

Years on Record: 34

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		9.3		10.8		11		10.4		10.5		9.8		9.1		8.1		7.2		7.6		8.2		8.7		9.9

Average Morning Web Bulb

Years on Record: 53

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		12.1		15.8		15.8		14.8		12.8		10.5		9		8		8.6		10.3		11.9		13.3		14.8

Average Afternoon Wet Bulb

Years on Record: 38

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		15		18.9		18.8		17.6		15.7		13.9		12.5		11.6		11.6		12.5		13.8		15.4		17.4

Heating Degree Days

Years on Record: 89

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1182		---		---		---		41.7		146.4		200		232.5		223.9		175		129.2		33.3		---

Cooling Degree Days

Years on Record: 89

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		334.5		103.3		102		51.7		---		---		---		---		---		---		---		---		43.1

Growing Degree Days

Years on Record: 89

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2402.9		361.7		337.4		310		208.3		111.9		50		25.8		34.4		75		129.2		216.7		301.4

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.5		14.5		13.7		12.7		11.7		10.8		10.4		10.6		11.3		12.3		13.4		14.3		14.8

Average Number of Clear Days

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		88.5		14.8		12.7		10.6		6.6		4.3		4.2		3.5		4.3		4.7		5.6		6.4		10.9

Average Number of Cloudy Days

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		116.9		5.1		5.4		7.1		11.5		13		12.6		13.3		11.7		11		11.2		8.9		6.2

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.7		28.1		24.9		19.3		13.9		9.9		8.5		9		11.6		15.3		19.9		24.5		27.8

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.6		7.3		6.5		5.7		4.6		3.6		3		3.3		4.2		5.7		7.1		8		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		18.8		24.9		24.2		21.1		17.5		13.7		12.9		13.2		14.7		17.3		19.7		22.3		24.1

Average 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		31		28.3		22.6		18		14.5		13.8		13.9		15.1		16.9		20.1		24.7		29.4

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.7		28.1		24.9		19.3		13.9		9.9		8.5		9		11.6		15.3		19.9		24.5		27.8

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.2		8.9		7.5		6.4		5		3.8		3.2		3.5		4.5		6		7.6		8.8		9.2

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		21.1		26.8		27.7		24		20.1		16.4		15.1		14.8		16		20.3		21.4		23.9		26.5

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		25.1		35.9		36.1		28.1		22		18.6		17.1		16.3		17.3		21.7		23.2		28.4		35.8

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.3		23.2		22.4		17.1		12		8		7.7		7.8		10.2		13.7		17.2		21.1		23.9

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		6.3		4.9		4.8		4.1		3.2		2.8		3.1		4.1		5		6.7		7.4		6.7

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.1		20.8		21.7		18.2		14.5		10.5		11.3		10.9		12.5		15.2		16.9		19.3		21

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.6		21.2		22.9		17.8		13.5		9.7		11.4		10.6		11.7		13.5		15.1		18.4		21.8