MACOMB, ILLINOIS

Average Temperature

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		10.8		-3.3		-3		5.3		10.6		16.7		20.8		23.7		23		19.4		12.6		5.7		-1.1

Average High Temperature

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		16.7		1.5		1.9		10.7		17		22.9		27		29.9		29.3		25.8		19.1		11.4		3.8

Average Low Temperature

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		5		-8.2		-8		-0.2		4.1		10.3		14.7		17.4		16.7		13.1		6.2		-0.1		-6.1

Highest Recorded Temperature

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		37.2		21.7		18.3		31.1		30		32.8		35.6		37.2		36.7		35		30		25.6		15.6

Lowest Recorded Temperature

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-33.3		-26.7		-33.3		-18.3		-6.7		-2.2		3.3		8.3		4.4		-0.6		-5.6		-12.8		-22.8

Average Number of Days Above 90F/32C

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		25.1		---		---		---		---		0.7		3.2		9.2		8.1		4		---		---		---

Average Number of Days Below 32F/0C

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		130.8		28.3		25.8		18.3		7.9		1.3		---		---		---		0.3		4.2		16.9		27.9

Average Number of Days Below 0F/-17C

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		8.2		3.7		3.3		0.1		---		---		---		---		---		---		---		---		1

Average Precipitation

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		896		43		37		68		89		103		111		97		86		92		68		57		44

Average Number of Days With Precipitation

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		100		7		7		9		10		11		10		8		8		8		7		8		7

Most Reported Precipitation in a Month

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		379		206		137		204		202		282		294		379		225		338		255		262		187

Least Reported Precipitation in a Month

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		---		---		1		10		16		12		5		4		12		1		1		---		6

Most Precipitation Reported in a Day

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		128.8		78.2		85.1		118.1		67.6		86.9		125		108.2		79.5		128.8		76.2		65.3		86.1

Avg. No. of Days w/Precip. Above 0.1in/2.5mm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		65.1		4		3.3		5.6		6.8		7.5		6.4		5.9		5.5		5.3		4.8		5.7		4.3

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

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		67		4		3		6		7		8		7		6		6		6		5		5		4

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

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		23		1		1		2		2		3		3		2		2		3		2		1		1

Avg. No. of Days w/Precip. Above 0.5in/13mm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		23.8		0.9		1		1.7		2.6		2.4		2.8		2.5		2.4		2.4		2		1.9		1.2

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

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		8		---		---		1		1		1		1		1		1		1		1		---		---

Average Snowfall

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		47.2		12.2		9.9		8.6		2.3		---		---		---		---		---		0.5		2.8		10.9

Most Snow Reported in a Month

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		147.6		54.6		36.8		46		36.8		---		---		---		---		3		22.9		22.9		147.6

Heating Degree Days

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2045		500		446.7		246.1		103.3		25.6		0.6		---		---		5.6		67.2		219.4		430.6

Cooling Degree Days

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		526.7		---		---		2.2		2.2		39.4		86.7		166.1		148.3		72.8		8.9		---		---

Growing Degree Days

Years on Record: 109

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1739.3		---		---		---		16.7		206.7		325		423.7		403		283.3		80.9		---		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.7		10.2		11.2		12.5		13.8		15		15.6		15.2		14.2		12.9		11.5		10.4		9.8

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.2		7.1		9.5		13.2		16.8		19.6		21.9		21.9		19.1		16.3		11.6		7.3		6

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		2.8		3.9		5.4		7.1		8.2		8.6		8.2		7.3		5.6		4.2		3.1		2.5

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.8		12		13.1		15.6		17.1		17.9		19.1		19.5		18.6		18.5		15.7		11.4		10.6

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16		12.1		12.9		14.9		16.2		17.7		20.3		21.2		19.1		19.3		15.8		11.6		10.7

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.2		7.1		9.5		13.2		16.8		19.6		21.9		21.9		19.1		16.3		11.6		7.3		6

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.9		2.9		4		5.6		7.3		8.6		9.1		8.8		7.6		6.2		4.5		3.2		2.6

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.1		14.4		17.2		19.9		20.2		21.5		21.3		21.7		20.8		23.4		18.8		16.7		13.6

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		21.6		15.3		18.6		21.7		21.6		25.1		25.4		26.1		23.2		27.9		20.4		19		15

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.4		6		7.6		9.8		13.8		15.3		19		16.9		17.2		12.9		8.8		4.5		4.9

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		2.6		3.5		4.8		6.5		7.5		8		7.6		6.8		4.3		3.8		2.6		2.3

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.1		9.4		9.5		10.8		13.7		14.1		16.7		15.2		16.7		14		10.9		5.8		7.8

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		9		8.2		8.1		10.8		10.7		15.2		12.5		15.5		12.1		9.2		4.4		7.2