CHESTER, ILLINOIS

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Elevation: 116 meters Latitude: 37 54N Longitude: 089 50W

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CURRENT CONDITIONS

Sunrise/Set

07:17 am

08:39 pm
Local Time
6:15 am EDT
19 April, 2024

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MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

[ °F ] °C

TEMPERATURE

Average Temperature

Years on Record: 106

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		15.2		3.2		3.3		10.8		14.3		20		24.6		26.2		27.1		23.1		15.4		9.6		4.3

Average High Temperature

Years on Record: 106

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		20.4		7.9		8.1		15.7		20		25.4		30.2		31.7		33.1		28.6		21.1		15.1		8.2

Average Low Temperature

Years on Record: 106

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		9.9		-1.7		-1.4		6		8.7		14.4		19.1		20.7		21		17.5		9.8		4.1		0.6

Highest Recorded Temperature

Years on Record: 106

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		40		22.8		22.2		32.2		33.9		33.9		40		38.9		39.4		36.1		32.8		27.8		23.3

Lowest Recorded Temperature

Years on Record: 106

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-15.6		-17.8		-15.6		-8.9		-4.4		2.2		10.6		13.9		13.3		4.4		-2.8		-7.8		-9.4

Average Number of Days Above 90F/32C

Years on Record: 106

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		56.3		---		---		0.4		0.7		1.8		10.5		15		21.2		6.6		0.2		---		---

Average Number of Days Below 32F/0C

Years on Record: 106

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		62		18.2		15.8		5		1.3		---		---		---		---		---		0.5		6.7		14.5

Average Number of Days Below 0F/-17C

Years on Record: 106

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		0.2		0.2		---		---		---		---		---		---		---		---		---		---		---

PRECIPITATION

Average Precipitation

Years on Record: 106

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1078		63		68		99		101		119		99		108		82		90		74		97		78

Average Number of Days With Precipitation

Years on Record: 106

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		97		7		8		9		10		10		8		8		7		7		7		8		8

Most Reported Precipitation in a Month

Years on Record: 106

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		344		242		172		217		237		316		228		344		252		302		269		276		310

Least Reported Precipitation in a Month

Years on Record: 106

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		---		1		5		1		38		24		19		8		2		4		2		7		---

Most Precipitation Reported in a Day

Years on Record: 106

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		200.7		91.4		58.4		113.8		73.7		106.7		114.3		170.7		127		200.7		92.2		114.3		81.3

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		73.5		5		5.3		6.7		7.5		7.8		6.5		6		5.1		5.1		6		6.2		6.3

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

Years on Record: 106

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

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

Years on Record: 106

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		30		2		2		3		3		3		3		3		2		2		2		3		2

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		29.9		1.8		1.8		2.6		2.6		3.7		2.9		2.7		2		2.3		2.4		2.9		2.2

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

Years on Record: 106

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

PRECIPITATION - SNOW

Average Snowfall

Years on Record: 106

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		35.8		11.2		9.7		5.1		0.5		---		---		---		---		---		---		1.8		7.6

Average Number of Days With Snow

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5.7		1.9		1.8		0.4		0.1		---		---		---		---		---		---		0.2		1.3

Most Snow Reported in a Month

Years on Record: 106

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		61		54.6		53.3		57.1		20.3		---		---		---		---		---		3.8		26.7		61

Avg. No. of Days w/Snow Above 1in/2.5cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4.5		1.5		1.4		0.3		0.1		---		---		---		---		---		---		0.1		1.1

Avg. No. of Days w/Snow Above 3in/7.5cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1.6		0.5		0.4		0.1		---		---		---		---		---		---		---		0.1		0.5

Avg. No. of Days w/Snow Above 5in/12.7cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		0.6		0.2		0.2		---		---		---		---		---		---		---		---		---		0.2

Avg. # of Days w/Snow Depth Above 1in/2.5cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		11.3		4.1		3.3		0.7		0.1		---		---		---		---		---		---		0.2		2.9

Avg. # of Days w/Snow Depth Above 3in/7.5cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5.2		1.6		1.6		0.3		---		---		---		---		---		---		---		0.1		1.6

Avg. # of Days w/Snow Depth Above 5in/12.7cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2.9		0.6		1.2		0.1		---		---		---		---		---		---		---		---		1

Avg. # of Days w/Snow Depth Above 10in/25cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		0.8		---		0.6		0.1		---		---		---		---		---		---		---		---		0.1

DEGREE DAYS

Heating Degree Days

Years on Record: 106

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1165.6		301.7		267.2		124.4		48.9		6.7		---		---		---		---		33.9		117.8		265

Cooling Degree Days

Years on Record: 106

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1016.1		---		---		20.6		23.9		88.3		191.7		243.3		270.6		148.9		26.1		2.8		---

Growing Degree Days

Years on Record: 106

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2492.8		---		---		25.8		130		310		438.3		501.2		528.7		391.7		167.1		---		---

SKY CONDITIONS

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.7		10.4		11.3		12.4		13.7		14.7		15.3		15		14		12.8		11.6		10.6		10.1

SOLAR RADIATION

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		7.3		10		13.6		17.4		19.7		21.5		22		19.7		17.1		12.5		8.1		6.5

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.7		3.1		4.1		5.7		7.2		8.3		8.8		8.2		7.3		5.7		4.3		3.3		2.8

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.9		11.4		13.1		15.7		17.5		18		18.8		19.6		19.1		19.1		16.6		12		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		16.1		11.3		13		14.7		16.6		17.5		19.3		20.9		19.7		19.9		17		12.1		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		14.6		7.3		10		13.6		17.4		19.7		21.5		22		19.7		17.1		12.5		8.1		6.5

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6		3.2		4.3		5.8		7.5		8.6		9.1		8.7		7.8		6.3		4.7		3.5		2.8

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18.8		14.4		15.7		18.2		21.8		21.6		20.7		21.9		20.6		22.6		19.2		16.1		13.1

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		15.8		16.9		18.5		24.4		24.9		23.5		26.2		22.5		26.2		20.8		18		14.2

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.9		5.9		7.8		10.3		14.4		16.5		17.7		19.4		17		14.2		9.3		5.7		5.3

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.3		2.8		3.9		5.4		6.3		7.5		8.3		7.5		7		4.8		4		3		2.6

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.5		8.6		9.5		11.3		14.3		15.2		15.7		17.4		16.4		15.3		11.4		7.3		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		10.7		7.4		8		8.5		11.3		12.2		13		16.3		14.7		13.8		9.5		6		7.1

NEARBY - MAP

NEARBY - LIST

Modoc, Illinois (8 mi / 13 km)
Perryville, Missouri (11 mi / 18 km)
Steeleville, Illinois (12 mi / 19 km)
Prairie Du Rocher, Illinois (19 mi / 31 km)
Sparta, Illinois (20 mi / 32 km)

GEOBA.SE

Chester, Illinois