ATHENS, GREECE

Average Temperature

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		65.3		50.5		51.1		54.1		60.6		69.3		77.4		82.4		82		75.6		67.1		59.7		53.6

Average High Temperature

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		71.6		56.5		57.4		60.3		66.9		75.4		83.7		89.2		89.1		82.8		73.8		65.8		59.4

Average Low Temperature

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		57.7		44.6		44.8		47.1		52.5		60.4		68.2		73		73		67.3		60.1		53.6		47.8

Highest Recorded Temperature

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		108		70		72		77		82		92		100		108		104		99		93		79		68

Lowest Recorded Temperature

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		25		28		25		28		39		46		55		61		50		55		37		32		32

Average Number of Days Above 90F/32C

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		34		---		---		---		---		---		3		15		14		2		---		---		---

Average Number of Days Above 70F/21C

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		186		---		---		1		7		26		30		31		31		30		24		6		---

Average Number of Days Below 32F/0C

Years on Record: 21

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

Average Precipitation

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		14.4		1.9		1.6		1.6		1		0.6		0.2		0.2		0.3		0.4		1.9		2.2		2.5

Average Number of Days With Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		64		9		7		8		6		4		1		1		1		3		5		8		11

Average Number of Rainy Days

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		98.3		13.2		11.8		11.9		9.7		6.8		3.7		1.6		1.8		3.9		8.9		11.3		13.7

Average Number of Days With Thunderstorms

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		22		1		2		2		2		2		2		1		1		1		3		3		2

Most Rain Reported in a Month

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		22		4.5		4.9		3.5		4.5		5.7		2.6		2		2.9		2.7		9.1		4.3		5.8

Least Recorded Rainfall

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		7.6		0.1		---		---		---		---		---		---		---		---		---		0.2		0.2

Average Relative Humidity

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		60.5		68.8		68		65.9		62.6		59		52.8		47		47.1		53.4		62.1		68.7		70.2

Average Morning Relative Humidity

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		71		75		75		76		75		73		68		59		58		64		71		76		76

Average Evening Relative Humidity

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		55		63		62		60		58		54		48		42		41		47		57		64		65

Average Dew Point

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		50		39		39		42		47		53		58		58		58		56		53		48		43

Heating Degree Days

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1862.4		448		392.7		350.3		159		---		---		---		---		---		---		159		353.4

Cooling Degree Days

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1777.1		---		---		---		---		89.9		328.5		499.1		497.6		301.5		60.5		---		---

Growing Degree Days

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5393.6		17.1		31.1		114.7		291		554.9		778.5		964.1		962.6		751.5		525.5		291		111.6

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.7		10.4		11.3		12.4		13.7		14.7		15.3		15		14		12.8		11.6		10.6		10.1

Average Number of Days With Fog

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		63		6		5		10		8		7		4		2		2		4		5		5		5

Average Wind Speed

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mph		4.4		4.7		4.8		4.5		4		3.7		4		4.7		4.8		4.3		4.4		4.2		4.6

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.5		1.8		2.6		3.7		5.4		6.6		7.8		7.7		6.9		5.3		3.3		2		1.5

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		0.9		1.2		1.6		1.9		2.1		1.9		1.8		1.6		1.4		1.2		0.9		0.8

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.8		2.6		3.3		4.3		5.5		6		6.7		6.8		6.7		6		4.4		2.8		2.2

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.4		2.5		3.1		4		5.7		6.9		9		9		8.4		6.9		4.3		2.6		2

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.5		1.8		2.6		3.7		5.4		6.6		7.8		7.7		6.9		5.3		3.3		2		1.5

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.6		0.9		1.2		1.6		2		2.3		2.3		2.1		1.9		1.7		1.3		1		0.8

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.7		3.7		4.3		6.2		6.4		6.6		7.2		7.2		7.2		6.8		5.5		4		3.3

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6.9		3.9		4.5		7		7.4		8.4		10.3		10.2		9.5		8.1		6		4.3		3.5

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.7		1.2		1.7		2.3		4.6		5.9		6.7		6.7		6		4.5		2.4		1.4		0.9

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.2		0.8		1.1		1.2		1.6		1.8		1.6		1.5		1.3		1.2		1.1		0.9		0.6

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.7		1.5		1.9		2.4		4.6		5.4		5.8		6		5.9		4.9		2.9		1.8		1.1

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.6		1.1		1.3		1.5		4.1		5.5		6.7		7		6.5		4.9		2.3		1.3		0.7