ST.-LAURENT DU MARONI, FRENCH GUIANA

Average Temperature

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		80		79		79		79		80		80		79		80		81		82		82		81		79

Average High Temperature

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		84		82		82		83		83		83		83		84		86		87		87		85		83

Average Low Temperature

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		75		75		75		76		76		76		75		75		76		76		76		75		75

Highest Recorded Temperature

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		108		107		95		102		93		93		93		99		104		108		104		99		97

Lowest Recorded Temperature

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		66		67		66		68		68		68		70		70		70		70		69		70		68

Average Number of Days Above 95F/35C

Years on Record: 17

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

Average Number of Days Above 86F/30C

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		166		6		6		10		11		11		12		17		21		22		22		18		10

Average Number of Days Below 75F/23C

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		217		20		18		18		15		16		19		21		17		16		17		18		21

Average Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		102.1		10.3		7.1		7.6		9.5		13.6		13		9.7		6.8		4.5		4		6.3		9.7

Average Number of Days With Thunderstorms

Years on Record: 14

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		38		---		---		---		1		2		4		6		7		8		5		4		1

Most Rain Reported in a Month

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		148.8		22.2		18.4		21.1		22.9		25		19.9		16.1		10.2		10.1		10.2		10.6		18.3

Least Recorded Rainfall

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		61		3.1		0.3		1		1.7		4.7		6.6		3.7		1.8		1.3		0.5		3.1		4.9

Average Morning Relative Humidity

Years on Record: 9

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		98		97		97		96		97		98		98		98		98		98		98		98		98

Average Evening Relative Humidity

Years on Record: 9

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		73		73		73		71		74		79		81		74		69		65		68		72		77

Average Dew Point

Years on Record: 7

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		74		73		73		73		74		75		75		74		74		74		74		75		74

Cooling Degree Days

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5389.9		418.5		381.4		449.5		435		449.5		420		449.5		496		495		511.5		450		434

Growing Degree Days

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		10868.6		883.5		805.1		914.5		885		914.5		870		914.5		961		945		976.5		900		899

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.5		12.2		12.3		12.4		12.6		12.7		12.8		12.8		12.6		12.5		12.3		12.2		12.2

Average Number of Days With Fog

Years on Record: 14

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

Average Wind Speed

Years on Record: 7

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mph		5		6		6		6		6		4		4		4		4		4		4		4		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		6		5.5		6.1		6.3		6.2		5.4		5.2		6.1		6.5		7		6.6		5.9		5.4

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		1.7		1.8		2		2.1		2.1		2		1.8		1.8		1.7		1.6		1.6		1.6

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6.1		5.7		6.2		6.3		6.1		5.4		5.2		6.1		6.5		6.9		6.7		6.1		5.6

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6.2		6		6.4		6.2		5.9		4.8		4.7		6.3		6.7		7.4		7.3		6.7		6.1

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6		5.5		6.1		6.3		6.2		5.4		5.2		6.1		6.5		7		6.6		5.9		5.4

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2.1		1.9		2		2.2		2.3		2.2		2.2		2.1		2.1		2		1.8		1.9		1.8

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6.7		6.4		6.9		6.8		6.9		6.4		6		6.8		7.1		7.2		7.2		6.8		6.3

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		7.5		7.5		7.9		7.3		7.3		6.7		6.1		7.6		7.9		8.2		8.4		8.1		7.5

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.2		4.5		5.2		5.1		5.1		4.6		4.4		5.3		5.8		6.2		6.1		5.1		4.6

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.6		1.4		1.5		1.8		1.8		1.8		1.9		1.6		1.6		1.5		1.4		1.3		1.4

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		4.6		5.2		5.1		5.1		4.6		4.4		5.3		5.7		6.1		6.2		5.2		4.7

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.6		4.1		4.7		4.1		4		3.5		3.4		4.8		5.2		5.9		6.2		5		4.4