OKEMOS, MICHIGAN

Average Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		7.1		-6.3		-5.7		-0.8		5.9		12.6		17.3		19.9		18.9		14.8		9.2		2.7		-3.1

Average High Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		13.5		-1.8		---		5.3		12.8		20.7		25.2		27.6		26.2		21.9		15.6		7.3		0.8

Average Low Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		0.8		-10.9		-11.4		-6.9		-0.9		4.5		9.3		12.3		11.6		7.7		2.8		-1.9		-7.1

Highest Recorded Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		29.7		2.6		4.7		11.3		16.9		26.7		28.8		29.7		28.5		25		19.9		12.2		4.9

Lowest Recorded Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-18.6		-16.9		-18.6		-11.5		-4.6		0.9		5.4		9.8		7.9		5		-0.3		-5.2		-13.1

Average Number of Days Above 90F/32C

Years on Record: 51

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		9.9		---		---		---		---		0.1		1.9		4.4		2.6		0.8		---		---		---

Average Number of Days Below 32F/0C

Years on Record: 51

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		145.1		27.5		26		25.2		12.8		1.9		---		---		---		0.4		5.7		19		26.5

Average Number of Days Below 0F/-17C

Years on Record: 51

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2.1		0.6		0.9		---		---		---		---		---		---		---		---		0.1		0.5

Average Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		816		53		31		41		60		67		71		77		91		101		90		73		60

Average Number of Days With Precipitation

Years on Record: 51

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		135		13		12		12		12		12		11		8		9		10		10		12		14

Most Reported Precipitation in a Month

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		213		100		74		100		118		133		161		167		213		189		194		116		120

Least Reported Precipitation in a Month

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		5		15		6		5		17		19		7		11		7		14		35		25		9

Most Precipitation Reported in a Day

Years on Record: 51

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		79.8		38.9		59.9		68.8		66		48.5		68.8		75.2		65		79.8		64.8		42.4		43.2

Avg. No. of Days w/Precip. Above 0.2in/5mm

Years on Record: 51

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		70		5		5		6		7		7		7		5		5		6		6		6		5

Avg. # of Days w/Precip. Above 0.4in/10mm

Years on Record: 51

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		17		1		1		1		1		2		2		2		2		2		1		1		1

Avg. No. of Days w/Precip. Above 1in/25mm

Years on Record: 51

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4		---		---		---		---		1		1		1		---		1		---		---		---

Average Snowfall

Years on Record: 51

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		112.5		27.7		23.1		19.8		5.6		0.8		---		---		---		---		0.8		11.2		23.6

Most Snow Reported in a Month

Years on Record: 51

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		122.2		122.2		61.7		56.1		29.2		29.2		1		2.8		2.3		4.8		15.8		55.4		74.4

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4247.8		765.6		673.3		592.8		372.8		194.4		66.7		16.7		38.3		109.4		283.9		470		663.9

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		180.6		---		---		---		---		16.7		35.6		66.7		56.1		5		0.6		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1029.8		---		---		---		---		80.9		218.3		308.3		277.3		145		---		---		---

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		11.1		12.5		13.9		15.2		15.9		15.5		14.3		12.9		11.5		10.2		9.6

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.2		5.8		8.8		12.5		16.2		19.1		21.4		21.5		18		14.5		9.7		5.9		4.9

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.4		2.5		3.5		5.2		6.9		8.2		8.7		8.2		7.2		5.5		4.1		2.8		2.2

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.8		10.7		13.2		15.3		16.6		17.5		18.6		19.1		17.6		16.7		13.2		9.4		9.3

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.8		10.4		13		14.7		15.9		17.5		19.9		21		17.8		16.9		12.8		9		9.1

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.2		5.8		8.8		12.5		16.2		19.1		21.4		21.5		18		14.5		9.7		5.9		4.9

Maximum 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		2.5		3.6		5.3		7.1		8.5		9		8.7		7.5		5.9		4.2		2.8		2.2

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.5		12.4		15.8		19.6		18.6		20.6		20.7		20.9		20.4		22		15.5		11.7		12

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.5		12.7		16.4		21.6		19.3		23.6		24.8		25.1		23.2		26		15.8		12.1		12.9

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.9		5.2		8		10.4		13.6		15.8		17.2		17.4		15.5		11.5		8.6		4.6		3.7

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5		2.4		3.3		4.5		6.7		7.6		8.1		7.7		6.7		4.4		3.9		2.7		2

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.9		9.1		11.4		12.1		13.7		14.5		15.1		15.5		15.1		12.5		11.3		6.5		6.1

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.3		8.5		10.7		10.2		11.2		11.9		12.8		13.7		13.3		10.5		10.1		5.5		5.4