Weather & Climate in Opdyke, IL

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

Opdyke 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 45.0 inches. The area receives 10.4 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	54.5°F
	1% 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	0.5 sq mi (1.4 km²)
Population Density	496/sq mi
Coordinates	38.2582°N, 88.7898°W
Timezone	America/Chicago
County	Jefferson County County
Nearest Airport	Evansville Regional (EVV) 70 miles away

Precipitation & Snow

Annual Rainfall 45.0"

18% above US avg

Snowfall 10.4"

Wettest Month (May) 4.53"

Driest Month (Jan) 2.48"

Air Quality

AQI Median	43.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Low
Risk Score	77.2 / 100
Social Vulnerability	52.8 / 100
Community Resilience	79.1 / 100

Hazard Breakdown

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

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

Earthquake History

95 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	82 km	14 km
Sep 26, 1990	4 km SE of Chaffee, Missouri	M4.8	143 km	1 km
Apr 18, 2008	9 km NNE of Bellmont, Illinois	M4.7	83 km	15 km
Jun 18, 2002	6 km SW of Parkers Settlement, Indiana	M4.6	95 km	16 km
Feb 5, 1994	2 km WNW of Dongola, Illinois	M4.2	105 km	16 km
Apr 21, 2008	7 km NNE of Bellmont, Illinois	M4.0	83 km	18 km
Dec 7, 2000	7 km W of Evansville, Indiana	M3.9	106 km	5 km
Sep 19, 2017	4 km N of Bellmont, Illinois	M3.8	79 km	12 km
Nov 11, 1991	3 km W of Flat Rock, Illinois	M3.8	118 km	0 km
Apr 25, 2008	8 km NNE of Bellmont, Illinois	M3.7	83 km	13 km
Jan 2, 2006	3 km NNE of Eldorado, Illinois	M3.6	57 km	7 km
Nov 20, 2012	7 km N of Bellmont, Illinois	M3.6	81 km	19 km
Jun 20, 2005	4 km WSW of Blandville, Kentucky	M3.6	150 km	19 km
May 1, 2016	5 km SE of New Grand Chain, Illinois	M3.5	117 km	16 km
Jun 5, 2008	8 km WNW of Mount Carmel, Illinois	M3.4	85 km	16 km
May 30, 2015	4 km ENE of Geff, Illinois	M3.4	44 km	26 km
Mar 2, 1990	9 km NW of Vernon, Illinois	M3.4	74 km	0 km
Sep 26, 1994	4 km ENE of Blandville, Kentucky	M3.4	145 km	13 km
May 1, 2008	8 km NNE of Bellmont, Illinois	M3.3	84 km	14 km
Aug 27, 1993	5 km SSE of Olympian Village, Missouri	M3.3	145 km	22 km

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

Tornado History

501 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 64 fatalities, 1,024 injuries.

Date	Rating	Distance	Path	Fatalities
Dec 18, 1957	EF5	45 km	5.4 mi	1
Nov 17, 2013	EF4	60 km	10.6 mi	2
Feb 29, 2012	EF4	64 km	26.1 mi	8
Jun 2, 1990	EF4	45 km	23.0 mi	0
Jun 2, 1990	EF4	28 km	106.0 mi	1
Jun 2, 1990	EF4	89 km	12.5 mi	0
Jan 7, 1989	EF4	91 km	19.0 mi	0
May 29, 1982	EF4	59 km	17.0 mi	10
Dec 18, 1957	EF4	25 km	16.8 mi	1
Dec 18, 1957	EF4	87 km	28.3 mi	11
Jul 9, 2024	EF3	89 km	5.8 mi	0
May 26, 2024	EF3	78 km	4.9 mi	0
Mar 31, 2023	EF3	96 km	40.9 mi	6
Feb 28, 2017	EF3	61 km	44.1 mi	1
Nov 17, 2013	EF3	97 km	14.1 mi	0
Apr 21, 2002	EF3	12 km	31.5 mi	1
Apr 19, 1996	EF3	13 km	17.0 mi	0
Nov 19, 1991	EF3	60 km	1.5 mi	0
Dec 2, 1982	EF3	85 km	10.5 mi	2
May 29, 1982	EF3	81 km	10.0 mi	0

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

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (2,286 acres, 2019).

Year	Name	Acres Burned	Distance
2019	UNNAMED	2,286	96 km
2021	RED SHALE UNIT RX	2,123	70 km
2021	GAP VIEW RX	1,575	85 km
2022	DENNISON HOLLOW RX	1,573	74 km
2021	UNNAMED	1,510	86 km
2022	ONE HORSE GAP RX	1,502	88 km
2014	UNNAMED	1,493	73 km
2015	UNNAMED	1,447	76 km
2021	BEATTY BRANCH RX	1,396	94 km
2016	UNNAMED	1,299	88 km
2024	RED SHALE RX	1,259	71 km
2014	UNNAMED	1,216	88 km
2019	KINKAID RX	1,215	76 km
2013	UNNAMED	1,203	88 km
2022	KINKAID STATE FISH AND WILDLIFE AREA RX	1,115	76 km
2024	PINE HOLLOW RX	1,038	97 km
2021	STATE OF ILLINOIS TRACT RX	1,011	79 km
2015	UNNAMED	1,008	87 km
2024	CAVE HILL RX	999	73 km
2017	UNNAMED	994	76 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	30°F (-1°C)	2.5 in	Coldest, Driest
February	34°F (1°C)	2.7 in
March	45°F (7°C)	4.3 in
April	55°F (13°C)	4.3 in
May	65°F (18°C)	4.5 in	Wettest
June	74°F (23°C)	3.9 in
July	77°F (25°C)	3.6 in	Warmest
August	76°F (24°C)	3.2 in
September	69°F (21°C)	3.1 in
October	57°F (14°C)	3.0 in
November	45°F (7°C)	4.2 in
December	35°F (2°C)	3.5 in

Opdyke has a seasonal temperature swing of 46°F / from 30°F in January to 77°F in July. Total annual precipitation is 42.6 inches, with May being the wettest month (4.5") and January the driest (2.5").

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