Weather & Climate in Du Bois, IL

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

Du Bois experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 30°F in January while summers reach 77°F in July. The area gets 293 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 42.2 inches. The area receives 11.7 inches of snow annually. Air quality is rated Good with a median AQI of 43. The city sits at an elevation of 515 feet.

Temperature

30°F Jan (-1°C) 77°F Jul (25°C)

Annual Average	55.1°F
	2% above US avg
January Average	30°F (-1°C)
July Average	77°F (25°C)
Sunny Days	293 days/yr

Geography

Elevation	515 ft (157 m)
Area	1.1 sq mi (2.7 km²)
Population Density	132/sq mi
Coordinates	38.2214°N, 89.2127°W
Timezone	America/Chicago
County	Perry County County
Nearest Airport	St Louis Regional (ALN) 65 miles away

Precipitation & Snow

Annual Rainfall 42.2"

11% above US avg

Snowfall 11.7"

Wettest Month (May) 4.37"

Driest Month (Jan) 2.24"

Air Quality

AQI Median	43.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Low
Risk Score	72.1 / 100
Social Vulnerability	64.1 / 100
Community Resilience	82.2 / 100

Hazard Breakdown

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

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

Earthquake History

108 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.2.

Apr 18, 2008	7 km NNE of Bellmont, Illinois	M5.2	119 km	14 km
Sep 26, 1990	4 km SE of Chaffee, Missouri	M4.8	124 km	1 km
Apr 18, 2008	9 km NNE of Bellmont, Illinois	M4.7	120 km	15 km
Jun 18, 2002	6 km SW of Parkers Settlement, Indiana	M4.6	130 km	16 km
Feb 5, 1994	2 km WNW of Dongola, Illinois	M4.2	95 km	16 km
Apr 21, 2008	7 km NNE of Bellmont, Illinois	M4.0	119 km	18 km
Dec 7, 2000	7 km W of Evansville, Indiana	M3.9	141 km	5 km
Jun 7, 2011	18 km NNW of Potosi, Missouri	M3.9	149 km	21 km
Sep 19, 2017	4 km N of Bellmont, Illinois	M3.8	116 km	12 km
Apr 25, 2008	8 km NNE of Bellmont, Illinois	M3.7	120 km	13 km
Jun 20, 2005	4 km WSW of Blandville, Kentucky	M3.6	146 km	19 km
Nov 20, 2012	7 km N of Bellmont, Illinois	M3.6	117 km	19 km
Jan 2, 2006	3 km NNE of Eldorado, Illinois	M3.6	82 km	7 km
Mar 15, 2017	9 km ESE of Wyatt, Missouri	M3.6	149 km	8 km
May 1, 2016	5 km SE of New Grand Chain, Illinois	M3.5	114 km	16 km
Mar 2, 1990	9 km NW of Vernon, Illinois	M3.4	70 km	0 km
Sep 26, 1994	4 km ENE of Blandville, Kentucky	M3.4	143 km	13 km
Jun 5, 2008	8 km WNW of Mount Carmel, Illinois	M3.4	122 km	16 km
May 30, 2015	4 km ENE of Geff, Illinois	M3.4	79 km	26 km
Aug 27, 1993	5 km SSE of Olympian Village, Missouri	M3.3	108 km	22 km

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

Tornado History

553 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 67 fatalities, 1,030 injuries.

Date	Rating	Distance	Path	Fatalities
Dec 18, 1957	EF5	16 km	5.4 mi	1
Feb 28, 2017	EF4	89 km	53.5 mi	1
Nov 17, 2013	EF4	30 km	10.6 mi	2
Feb 29, 2012	EF4	77 km	26.1 mi	8
Sep 22, 2006	EF4	81 km	27.5 mi	0
Jun 2, 1990	EF4	75 km	23.0 mi	0
Jun 2, 1990	EF4	65 km	106.0 mi	1
May 29, 1982	EF4	47 km	17.0 mi	10
Apr 3, 1981	EF4	97 km	11.9 mi	0
Dec 18, 1957	EF4	13 km	16.8 mi	1
Dec 18, 1957	EF4	63 km	28.3 mi	11
May 26, 2024	EF3	73 km	4.9 mi	0
Dec 10, 2021	EF3	95 km	4.2 mi	6
Feb 28, 2017	EF3	96 km	44.1 mi	1
Mar 11, 2006	EF3	82 km	53.5 mi	2
Mar 11, 2006	EF3	98 km	5.1 mi	0
Apr 28, 2002	EF3	95 km	19.3 mi	1
Apr 21, 2002	EF3	45 km	31.5 mi	1
Apr 19, 1996	EF3	79 km	11.5 mi	0
Apr 19, 1996	EF3	41 km	17.0 mi	0

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	62 km
2014	UNNAMED	1,627	91 km
2019	ATWOOD RIDGE RX	1,622	91 km
2022	DENNISON HOLLOW RX	1,573	94 km
2021	UNNAMED	1,510	96 km
2014	UNNAMED	1,493	93 km
2015	UNNAMED	1,447	94 km
2024	RED SHALE RX	1,259	63 km
2019	KINKAID RX	1,215	50 km
2022	KINKAID STATE FISH AND WILDLIFE AREA RX	1,115	50 km
2021	STATE OF ILLINOIS TRACT RX	1,011	49 km
2024	CAVE HILL RX	999	93 km
2017	UNNAMED	994	94 km
2021	MILL CREEK RX	898	69 km
2024	HAMPTON NORTH RX	807	59 km
2018	UNNAMED	729	50 km
2024	HERRIN FLATS RX	713	61 km
2020	UNNAMED	687	50 km
2013	UNNAMED	651	89 km
2021	UNNAMED	629	97 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	30°F (-1°C)	2.2 in	Coldest, Driest
February	34°F (1°C)	2.6 in
March	45°F (7°C)	4.1 in
April	55°F (13°C)	3.9 in
May	65°F (18°C)	4.4 in	Wettest
June	74°F (23°C)	3.8 in
July	77°F (25°C)	3.7 in	Warmest
August	76°F (24°C)	3.2 in
September	69°F (21°C)	3.2 in
October	57°F (14°C)	3.1 in
November	45°F (7°C)	3.9 in
December	35°F (2°C)	3.4 in

Du Bois has a seasonal temperature swing of 47°F / from 30°F in January to 77°F in July. Total annual precipitation is 41.4 inches, with May being the wettest month (4.4") and January the driest (2.2").

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