ALTON, MISSOURI

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Elevation: 300 meters Latitude: 36 42N Longitude: 091 19W

WEATHER

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Climate Summary

CURRENT CONDITIONS

Sunrise/Set

07:19 am

08:47 pm
Local Time
7:24 am EDT
23 April, 2024

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MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

[ °F ] °C

TEMPERATURE

Average Temperature

Years on Record: 71

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		13.5		0.6		3		8.2		13.9		18.4		22.8		25.4		24.6		20.4		14.4		8.1		2.4

Average High Temperature

Years on Record: 71

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		20.6		6.9		9.9		15.4		21.4		25.5		29.6		32.2		31.8		27.8		22.3		14.9		8.6

Average Low Temperature

Years on Record: 71

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		6.5		-5.7		-4		1.1		6.6		11.3		15.9		18.6		17.4		12.9		6.4		1.3		-3.7

Highest Recorded Temperature

Years on Record: 71

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		40.6		24.4		27.8		32.2		33.3		34.4		37.8		40.6		40.6		39.4		34.4		29.4		24.4

Lowest Recorded Temperature

Years on Record: 71

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-27.8		-27.8		-23.3		-16.1		-9.4		-2.2		4.4		7.8		7.2		-0.6		-8.9		-17.2		-21.1

Average Number of Days Above 100F/38C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2.1		---		---		---		---		---		---		0.7		1.3		0.1		---		---		---

Average Number of Days Above 90F/32C

Years on Record: 71

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		46.6		---		---		0.1		0.4		0.7		8.1		17.1		14.7		5.1		0.5		---		---

Average Number of Days Above 80F/26C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		124.2		---		0.1		1.1		4.7		11.6		24.1		29.6		28.9		18.2		5.4		0.5		---

Average Number of Days Above 70F/21C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		190.5		0.4		1.5		6.1		15.5		25.7		29.4		30.9		30.9		27.6		16.7		5.3		0.3

Average Number of Days Above 60F/15C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		247.5		4.5		6.6		14.7		24.3		30.6		30		31		31		29.9		27.7		13.7		3.6

Average Number of Days Above 50F/10C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		297.5		11.2		13.8		24.4		29.1		30.9		30		31		31		30		30.8		22.9		12.5

Average Number of Days Above 40F/4C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		335.9		18.9		22		29.8		29.9		31		30		31		31		30		31		28.4		22.9

Average Number of Days Below 70F/21C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		351.1		31		28		31		30		31		27.6		24.9		26.5		29.3		30.9		30		31

Average Number of Days Below 60F/15C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		276.1		31		28		30.8		28.1		23.2		12		4.5		7.8		20.7		29.3		29.8		30.9

Average Number of Days Below 50F/10C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		210.9		30		27.5		29		21.7		12.2		1.3		---		0.4		8		22.6		27.7		30.5

Average Number of Days Below 40F/4C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		157		28.6		25.7		23.6		12.5		2.8		---		---		---		1.6		11.7		22		28.5

Average Number of Days Below 32F/0C

Years on Record: 71

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		107		24.5		20.9		14.6		4.7		0.4		---		---		---		0.1		5		13.8		23

Average Number of Days Below 20F/-6C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		39.4		13.5		8.7		2.6		0.1		---		---		---		---		---		0.1		3.4		11

Average Number of Days Below 10F/-12C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		10.1		5.3		1.8		0.2		---		---		---		---		---		---		---		---		2.7

Average Number of Days Below 0F/-17C

Years on Record: 71

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2		1.3		0.5		---		---		---		---		---		---		---		---		---		0.2

PRECIPITATION

Average Precipitation

Years on Record: 71

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1139		72		79		110		113		128		87		95		80		94		77		109		95

Average Number of Days With Precipitation

Years on Record: 71

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		84		6		7		8		8		9		7		7		6		6		6		7		7

Most Reported Precipitation in a Month

Years on Record: 71

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		490		235		249		351		358		391		235		175		246		271		254		284		490

Least Reported Precipitation in a Month

Years on Record: 71

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		---		11		7		16		18		14		16		7		8		---		---		5		---

Most Precipitation Reported in a Day

Years on Record: 71

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		212.1		147.3		94.2		155.4		108.2		116.8		93.2		85.1		86.4		121.2		118.9		121.2		212.1

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		68.8		4.8		5.2		6.7		5.7		7.5		5.8		6.3		4.9		4.6		5.3		6.2		5.8

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

Years on Record: 71

		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: 71

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		32		2		2		3		3		3		3		3		2		3		2		3		3

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		31.3		2.5		2.4		2.5		2.8		3.3		2.2		2.6		2.1		2.3		2.6		3.5		2.5

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

Years on Record: 71

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		13		1		1		1		1		2		1		1		1		1		1		1		1

PRECIPITATION - SNOW

Average Snowfall

Years on Record: 71

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		25.9		6.3		7.6		6.3		---		---		---		---		---		---		---		1.5		4.1

Most Snow Reported in a Month

Years on Record: 71

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		57.1		57.1		41.9		55.9		1.5		---		---		---		---		---		---		22.9		36.8

DEGREE DAYS

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4514		980		770		579		284		97		8		---		2		49		266		566		913

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1314		---		---		4		28		91		255		398		363		148		25		2		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4077		12		15		79		236		460		697		863		826		550		255		71		12

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		10.5		11.3		12.4		13.6		14.6		15.1		14.9		14		12.8		11.7		10.7		10.2

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		14.9		7.8		10.5		14		18		19.6		21.7		21.7		19.7		17.1		12.8		8.5		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		5.8		3.2		4.2		5.7		7.2		8.3		8.7		8.3		7.4		5.8		4.4		3.4		2.9

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.2		11.9		13.6		16.1		18.1		18		19		19.4		19.1		18.9		16.9		12.3		11.1

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.3		12.2		13.7		15.2		17.4		17.1		19.5		20.3		19.4		19.6		17.3		12.6		11.2

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.9		7.8		10.5		14		18		19.6		21.7		21.7		19.7		17.1		12.8		8.5		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		6.1		3.3		4.4		5.9		7.5		8.6		9.1		8.8		7.8		6.3		4.8		3.6		3

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.7		15.7		17		19.3		23.1		21.5		21.8		22.1		21.4		22.3		20.8		17.2		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		22.3		17.6		18.8		20.2		26.8		24.3		25.9		26.6		23.9		25.5		23.4		19.7		14.9

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.2		6.2		8.8		11.1		14.2		16.2		19		18.4		17.3		14.8		8.6		5.9		5.5

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		2.8		3.8		5.2		5.9		7.6		7.9		7.5		6.8		4.9		3.7		2.9		2.7

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.7		8.8		10.8		12.2		14		14.9		16.8		16.6		16.7		16		10		7.6		7.9

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.8		7.6		9.6		9.5		10.8		11.5		15		14.5		14.9		14.7		7.7		6.1		7.1

NEARBY - MAP

NEARBY - LIST

Koshkonong, Missouri (19 mi / 31 km)
Mammoth Spring, Arkansas (19 mi / 31 km)
Thayer, Missouri (19 mi / 30 km)
Birch Tree, Missouri (22 mi / 35 km)
Van Buren, Missouri (25 mi / 41 km)

GEOBA.SE

Alton, Missouri