SIDELL, ILLINOIS

Average Temperature

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		10.8		-4		-3.1		4.6		11.6		16.8		22.5		23.4		22.9		19.3		12		5.9		-2.1

Average High Temperature

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		16.6		0.4		1.8		10.3		18.1		22.9		28.5		29.4		29.3		26.4		18.6		11.3		2.1

Average Low Temperature

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		5.1		-8.4		-7.9		-1.1		4.9		10.6		16.4		17.4		16.7		12.2		5.3		0.6		-6.3

Highest Recorded Temperature

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		36.1		18.3		17.8		27.2		30.6		34.4		35.6		36.1		36.1		35.6		32.8		25.6		17.2

Lowest Recorded Temperature

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-27.2		-27.2		-25		-17.8		-6.1		-1.1		3.9		9.4		6.7		1.1		-5.6		-11.1		-20.6

Average Number of Days Above 90F/32C

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		25.1		---		---		---		---		1.4		6.6		7.2		6.4		3.2		0.2		---		---

Average Number of Days Below 32F/0C

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		127.8		27.4		26.4		18.9		7.1		0.2		---		---		---		---		4.2		16.3		27.2

Average Number of Days Below 0F/-17C

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		7.8		4.1		2.1		0.1		---		---		---		---		---		---		---		---		1.4

Average Precipitation

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		960		58		48		67		95		105		99		116		82		73		73		78		66

Average Number of Days With Precipitation

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		108		9		8		10		11		11		10		9		8		7		8		8		9

Most Reported Precipitation in a Month

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		273		234		154		161		214		273		266		266		182		231		203		253		199

Least Reported Precipitation in a Month

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1		2		4		17		12		18		5		19		18		1		9		15		1

Most Precipitation Reported in a Day

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		109.2		82		67.6		54.9		109.2		90.4		100.3		102.4		68.6		99.1		95.2		69.1		61.7

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

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		73		5		4		6		8		8		7		7		6		5		5		6		6

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

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		25		1		1		2		3		3		2		3		2		2		2		2		2

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

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		9		---		---		---		1		1		1		1		1		1		1		1		1

Average Snowfall

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		55.6		15.8		13.7		8.6		1		---		---		---		---		---		---		3		13.5

Most Snow Reported in a Month

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		69.8		54.6		69.8		57.1		16		---		---		---		---		---		3		32.3		68.1

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2871.7		647.8		505.6		374.4		181.1		67.8		3.9		---		1.7		25.6		155		353.3		555.6

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		733.3		---		---		---		6.1		60		149.4		226.7		196.1		81.1		13.9		---		---

Growing Degree Days

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1790.2		---		---		---		46.7		210.1		375		415.1		401.3		280		62		---		---

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		14.9		15.5		15.2		14.2		12.9		11.6		10.4		9.9

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		6.7		9.4		12.7		16.5		19.5		21.4		21.9		18.9		16.2		11.5		7.1		5.7

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		5.5		7.1		8.3		8.8		8.2		7.3		5.7		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		15.4		11		12.8		14.9		16.7		17.9		18.7		19.6		18.4		18.2		15.6		10.7		9.7

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.4		10.9		12.6		13.9		15.6		17.5		19.4		21.2		18.6		18.9		15.7		10.6		9.6

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		6.7		9.4		12.7		16.5		19.5		21.4		21.9		18.9		16.2		11.5		7.1		5.7

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		5.7		7.3		8.6		9		8.8		7.7		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		18.4		13		17		18.4		19.7		22.2		21.6		21.5		19.7		22.4		18.1		15.6		12.2

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		20.6		13.8		18.4		19.2		20.8		26.6		26.2		25.6		21.1		26.1		19.3		17.4		13

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.3		5.3		7.8		9.7		13.1		16.4		19.5		17.1		16.9		12.8		8.9		4.4		4.2

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.1		2.7		3.5		5.1		6.7		7.2		7.9		7.6		7.1		4.6		3.9		2.7		2.4

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		7.8		10.4		10.7		13		15.1		17.1		15.4		16.3		13.9		11.2		5.6		6.2

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		6.9		8.9		8		9.8		12.3		16.1		12.9		14.8		12		9.6		4.1		5.3