GERALDTON, WESTERN AUSTRALIA

Average Temperature

Years on Record: 49

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		20		25		26		24		21		18		16		14		14		15		17		20		22

Average High Temperature

Years on Record: 49

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		25		31		32		31		27		23		20		19		20		22		24		26		29

Average Low Temperature

Years on Record: 49

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		13		18		18		17		15		12		11		9		8		9		11		13		16

Highest Recorded Temperature

Years on Record: 49

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		47		47		47		44		39		36		29		28		31		35		40		42		46

Lowest Recorded Temperature

Years on Record: 49

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		---		9		10		8		6		2		---		---		1		1		2		3		7

Average Number of Days Above 90F/32C

Years on Record: 49

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		59		13		13		12		4		---		---		---		---		---		2		5		8

Average Number of Days Above 80F/26C

Years on Record: 49

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		142		26		25		26		16		6		1		---		1		3		7		12		19

Average Number of Days Below 45F/7C

Years on Record: 49

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		40		---		---		---		---		1		4		9		11		10		5		---		---

Average Precipitation

Years on Record: 49

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		460		---		10		10		20		70		110		90		60		30		20		10		---

Average Number of Days With Thunderstorms

Years on Record: 49

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		10		1		1		1		1		1		1		1		---		1		---		1		1

Most Rain Reported in a Month

Years on Record: 49

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		840		60		130		80		90		280		280		240		130		80		100		40		50

Least Recorded Rainfall

Years on Record: 49

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		220		---		---		---		---		---		20		20		10		---		---		---		---

Average Morning Relative Humidity

Years on Record: 47

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		79		74		72		72		74		77		82		84		85		85		82		78		76

Average Evening Relative Humidity

Years on Record: 47

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		51		46		45		45		47		51		58		59		58		54		50		48		49

Average Dew Point

Years on Record: 47

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		11		14		15		13		12		10		10		9		9		9		10		11		13

Heating Degree Days

Years on Record: 49

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		408.4		---		---		---		---		---		75		120.6		120.6		75		17.2		---		---

Cooling Degree Days

Years on Record: 49

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		998.2		206.7		204.1		189.4		91.7		---		---		---		---		---		---		58.3		137.8

Growing Degree Days

Years on Record: 49

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3840.2		465		439.4		447.8		341.7		258.3		175		137.8		137.8		175		241.1		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		14.2		13.5		12.6		11.8		11.1		10.8		10.9		11.5		12.3		13.2		14		14.4

Average Number of Days With Fog

Years on Record: 49

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		12		---		1		1		1		1		---		1		1		3		2		1		---

Average Wind Speed

Years on Record: 37

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
km/h		20		28		27		25		20		16		14		14		14		17		22		27		27

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.7		27.3		24.3		20.3		16		12.6		11		11.6		14.8		19.6		24.2		26.7		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		7.7		7.2		6.1		4.8		3.8		3.3		3.5		4.2		5.1		6.2		7.3		7.9

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		20.7		24.3		23.3		21.4		19.1		16.4		15.4		15.7		18.8		21.9		23.8		24.2		24.3

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		23.2		28.6		25.6		22.4		19.9		18.3		17.4		17.5		20.1		23.9		27.2		28.3		29

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.7		27.3		24.3		20.3		16		12.6		11		11.6		14.8		19.6		24.2		26.7		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		6.3		8.8		7.8		6.8		5.4		4.4		3.6		4		4.7		5.8		7.2		8.1		8.6

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		23.2		26.2		25.8		24.3		22.7		19.2		18		18.4		21.9		24		25.3		26.4		26.1

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		28		33.2		30.8		28.1		26		23		21.7		22		25.4		27.9		30.4		33.5		33.7

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.6		23.9		22.4		17.6		14.2		10.1		10		10		13.3		17.7		21.3		24.7		25.6

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		6.8		6.2		5.1		3.9		3.2		2.8		3		3.4		4.4		5.5		6.3		6.9

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18.2		21.5		21.5		18.3		16.6		12.4		13.5		12.9		16.4		19.4		20.8		22.5		22.6

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18.5		22		21.7		17.1		15.8		11.9		14.4		13.1		16.3		19.6		21.2		24.3		24.7