PORTO ALEGRE, RIO GRANDE DO SUL

Average Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		67.1		76.3		76.3		73.6		67.8		62.4		57.7		57.9		59.4		62.2		66.4		70.2		73.9

Average High Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		76.6		86.4		86.2		82.9		77.4		71.8		66.9		68.5		68.7		71.2		75.9		80.1		84.2

Average Low Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		60.1		68.9		69.4		66.7		61.3		55.4		51.3		51.3		52.7		55.6		59		62.6		66

Highest Recorded Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		102.6		102.4		100.2		100.6		94.3		90		88.7		88.5		94.8		94.6		96.8		102.2		102.6

Lowest Recorded Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		31.5		50.2		54.7		49.3		44.2		37.9		31.5		34.2		34		36		43.2		47.7		51.3

Average Number of Days Above 90F/32C

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		43		10		10		6		2		---		---		---		---		1		2		3		8

Average Number of Days Above 70F/21C

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		269		31		28		30		28		19		11		11		12		16		25		28		31

Average Number of Days With Precipitation

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		123		9		11		10		10		9		10		11		12		12		10		10		9

Average Evaporation Rate

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		36.5		4.7		3.8		3.4		2.6		2		1.6		1.7		2.1		2.5		3.4		3.9		4.7

Average Number of Rainy Days

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		123		9		11		10		10		9		10		11		12		12		10		10		9

Average Number of Days With Thunderstorms

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		37		3		4		3		2		3		2		3		4		4		3		3		3

Average Relative Humidity

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		76		71		74		75		77		81		82		81		79		78		74		71		69

Average Morning Relative Humidity

Years on Record: 14

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		91		89		90		91		92		93		93		92		92		92		91		89		89

Average Evening Relative Humidity

Years on Record: 14

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		60		53		58		58		60		63		65		66		64		61		57		55		54

Average Dew Point

Years on Record: 14

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		60		67		68		66		62		57		52		53		54		55		59		61		64

Heating Degree Days

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		520		---		---		---		---		31		165		155		124		45		---		---		---

Cooling Degree Days

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1889.8		403		367.3		325.5		150		---		---		---		---		---		108.5		210		325.5

Growing Degree Days

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6848.5		868		791		790.5		600		434		285		310		341		405		573.5		660		790.5

Average Station Pressure

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
InHg		29.9		29.8		29.8		29.8		29.9		30		30		30		30		29.9		29.9		29.8		29.8

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		11.7		11		10.7		10.9		11.5		12.3		13.3		14.1		14.5

Average Number of Days With Fog

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		306		22		22		27		26		28		27		28		28		26		26		22		24

Average Number of Days With Smoke/Haze

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		213		18		18		18		17		17		17		17		18		18		19		17		19

Average No. of Days With Vision Obstruction

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		333		26		25		29		28		30		28		30		29		27		28		25		28

Average Percent of Cloud Cover

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		50		50		50		60		50		60		60		60		60		60		60		50		50

Average Wind Speed

Years on Record: 14

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mph		9		9		9		9		8		6		9		6		8		9		9		9		9

Average No. of Days With Blowing Dust/Sand

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		333		26		25		29		28		30		28		30		29		27		28		25		28

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.4		5.9		5.3		4.7		3.7		3		2.5		2.7		3.4		4		4.9		5.8		6.2

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.8		2.6		2.3		1.9		1.5		1.1		1		1		1.3		1.8		2.2		2.5		2.6

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.6		5.4		5.1		4.9		4.3		3.9		3.4		3.6		4.2		4.3		4.8		5.4		5.5

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.3		4.9		4.5		4.6		4		4		3.5		3.7		4.1		3.8		4.2		5		5.2

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.4		5.9		5.3		4.7		3.7		3		2.5		2.7		3.4		4		4.9		5.8		6.2

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.9		2.6		2.4		2		1.5		1.2		1		1.1		1.4		1.8		2.2		2.6		2.7

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.4		6		6.1		6		5.5		4.6		4		4.5		5.1		5.1		5.9		6.2		5.9

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.7		6.2		6.3		6.4		5.9		5.2		4.4		5		5.4		5		6.1		6.7		6.1

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.6		5.1		4.3		4		3.1		2.4		1.9		2.3		2.6		3.1		3.5		4.9		5.5

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.7		2.4		2.1		1.7		1.3		1		0.9		0.9		1.2		1.7		2		2.3		2.5

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.6		4.7		4.2		4.1		3.5		2.9		2.4		3		3		3.2		3.3		4.5		4.9

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2.8		3.6		2.9		3.2		2.8		2.5		2		2.7		2.3		2.2		2.1		3.5		4.1