Weather & Climate in Willisville, IL

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Willisville enjoys a temperate climate with an average annual temperature of 56°F (14°C). Winters average 32°F in January while summers reach 79°F in July. The area gets 305 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 42.8 inches. The area receives 4.3 inches of snow annually. Air quality is rated Good with a median AQI of 43. The city sits at an elevation of 495 feet.

Temperature

32°F Jan (0°C) 79°F Jul (26°C)

Annual Average	56.4°F
	4% above US avg
January Average	32°F (0°C)
July Average	79°F (26°C)
Sunny Days	305 days/yr

Geography

Elevation	495 ft (151 m)
Area	0.2 sq mi (0.4 km²)
Population Density	1,067/sq mi
Coordinates	37.9828°N, 89.5898°W
Timezone	America/Chicago
County	Jackson County County
Nearest Airport	Farmington Regional (FAM) 46 miles away

Precipitation & Snow

Annual Rainfall 42.8"

13% above US avg

Snowfall 4.3"

Wettest Month (May) 4.53"

Driest Month (Jan) 2.40"

Air Quality

AQI Median	43.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Moderate
Risk Score	87.1 / 100
Social Vulnerability	76.6 / 100
Community Resilience	65.2 / 100

Hazard Breakdown

Tornado	Relatively Moderate
Hurricane	Very Low
Earthquake	Relatively Moderate
Wildfire	Very Low
Flood	Relatively Moderate
Hail	Relatively Moderate
Strong Wind	Very High
Heat Wave	Relatively Moderate
Winter Weather	Relatively High
Lightning	Relatively Moderate
Ice Storm	Relatively Moderate
Drought	Relatively Low
Cold Wave	Relatively High
Landslide	Relatively Moderate

Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

131 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.

Sep 26, 1990	4 km SE of Chaffee, Missouri	M4.8	92 km	1 km
Feb 5, 1994	2 km WNW of Dongola, Illinois	M4.2	77 km	16 km
Jun 6, 2003	1 km NE of Bardwell, Kentucky	M4.0	134 km	3 km
Jun 7, 2011	18 km NNW of Potosi, Missouri	M3.9	115 km	21 km
Feb 21, 2012	4 km SSE of Bertrand, Missouri	M3.9	124 km	8 km
Mar 2, 2010	2 km ENE of East Prairie, Missouri	M3.7	134 km	8 km
Jan 2, 2006	3 km NNE of Eldorado, Illinois	M3.6	104 km	7 km
Jun 20, 2005	4 km WSW of Blandville, Kentucky	M3.6	129 km	19 km
Mar 15, 2017	9 km ESE of Wyatt, Missouri	M3.6	129 km	8 km
May 1, 2016	5 km SE of New Grand Chain, Illinois	M3.5	101 km	16 km
Jul 16, 2004	6 km SE of Wyatt, Missouri	M3.5	130 km	4 km
Jun 15, 2004	3 km S of Canalou, Missouri	M3.5	140 km	5 km
May 30, 2015	4 km ENE of Geff, Illinois	M3.4	120 km	26 km
Sep 26, 1994	4 km ENE of Blandville, Kentucky	M3.4	128 km	13 km
Mar 2, 1990	9 km NW of Vernon, Illinois	M3.4	103 km	0 km
Aug 27, 1993	5 km SSE of Olympian Village, Missouri	M3.3	75 km	22 km
Feb 6, 1993	6 km NNW of Catron, Missouri	M3.3	147 km	8 km
May 16, 2017	9 km ESE of Wyatt, Missouri	M3.3	130 km	9 km
Dec 27, 1992	2 km E of Pocahontas, Missouri	M3.2	54 km	10 km
Jan 29, 1993	7 km WNW of Brownstown, Illinois	M3.2	127 km	5 km

Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

587 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 78 fatalities, 1,085 injuries.

Date	Rating	Distance	Path	Fatalities
Dec 18, 1957	EF5	32 km	5.4 mi	1
Feb 28, 2017	EF4	47 km	53.5 mi	1
Nov 17, 2013	EF4	50 km	10.6 mi	2
Feb 29, 2012	EF4	89 km	26.1 mi	8
Sep 22, 2006	EF4	40 km	27.5 mi	0
May 6, 2003	EF4	93 km	33.0 mi	2
May 29, 1982	EF4	45 km	17.0 mi	10
Apr 3, 1981	EF4	95 km	11.9 mi	0
Jun 22, 1969	EF4	89 km	15.1 mi	4
Dec 18, 1957	EF4	56 km	16.8 mi	1
Dec 18, 1957	EF4	33 km	28.3 mi	11
May 26, 2024	EF3	67 km	4.9 mi	0
Dec 10, 2021	EF3	95 km	4.2 mi	6
Oct 24, 2021	EF3	86 km	18.8 mi	0
Oct 24, 2021	EF3	78 km	16.7 mi	0
Dec 31, 2010	EF3	96 km	6.7 mi	1
Mar 11, 2006	EF3	67 km	5.1 mi	0
Mar 11, 2006	EF3	40 km	53.5 mi	2
May 6, 2003	EF3	67 km	2.0 mi	0
Apr 28, 2002	EF3	72 km	19.3 mi	1

Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: RED SHALE UNIT RX (2,123 acres, 2021).

Year	Name	Acres Burned	Distance
2021	RED SHALE UNIT RX	2,123	56 km
2014	UNNAMED	1,627	68 km
2019	ATWOOD RIDGE RX	1,622	68 km
2000	UNNAMED	1,552	98 km
1999	UNNAMED	1,483	99 km
2020	UNNAMED	1,334	88 km
2024	RED SHALE RX	1,259	56 km
2017	UNNAMED	1,257	76 km
2021	OZARK HILL PRAIRIE RX	1,235	76 km
2019	KINKAID RX	1,215	23 km
2022	KINKAID STATE FISH AND WILDLIFE AREA RX	1,115	23 km
2021	STATE OF ILLINOIS TRACT RX	1,011	14 km
2022	BEAN RIDGE RX	955	83 km
2021	MILL CREEK RX	898	51 km
2024	HAMPTON NORTH RX	807	55 km
2005	UNNAMED	741	84 km
2018	UNNAMED	729	21 km
1995	UNNAMED	724	84 km
2024	HERRIN FLATS RX	713	58 km
2024	WOLF CREEK (OLIVE BR) RX	691	89 km

Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	32°F (0°C)	2.4 in	Coldest, Driest
February	35°F (2°C)	2.7 in
March	45°F (7°C)	4.3 in
April	56°F (13°C)	4.1 in
May	65°F (18°C)	4.5 in	Wettest
June	74°F (23°C)	3.9 in
July	79°F (26°C)	4.0 in	Warmest
August	76°F (24°C)	3.5 in
September	69°F (21°C)	3.3 in
October	58°F (14°C)	3.0 in
November	46°F (8°C)	4.1 in
December	36°F (2°C)	3.6 in

Willisville has a seasonal temperature swing of 47°F / from 32°F in January to 79°F in July. Total annual precipitation is 43.5 inches, with May being the wettest month (4.5") and January the driest (2.4").

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