Weather & Climate in Bentley, IL

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

Bentley experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 26°F in January while summers reach 76°F in July. The area gets 275 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 40.1 inches. The area receives 23.1 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 43. The city sits at an elevation of 676 feet.

Temperature

26°F Jan (-3°C) 76°F Jul (25°C)

Annual Average	52.8°F
	2% below US avg
January Average	26°F (-3°C)
July Average	76°F (25°C)
Sunny Days	275 days/yr

Geography

Elevation	676 ft (206 m)
Area	0.1 sq mi (0.1 km²)
Population Density	107/sq mi
Coordinates	40.3437°N, 91.1123°W
Timezone	America/Chicago
County	Hancock County County
Nearest Airport	Quincy Regional-Baldwin Field (UIN) 28 miles away

Precipitation & Snow

Annual Rainfall 40.1"

6% above US avg

Snowfall 23.1"

Wettest Month (May) 4.37"

Driest Month (Feb) 1.38"

Air Quality

AQI Median	43.0
Rating	Good

Natural Hazard Risk

Overall Risk	Very Low
Risk Score	31.1 / 100
Social Vulnerability	64.8 / 100
Community Resilience	61.4 / 100

Hazard Breakdown

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

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

Earthquake History

1 earthquake (M2.5+) recorded within 150 km since 1990. Strongest on record: M2.9.

Feb 8, 2004	6 km SSW of Stoutsville, Missouri	M2.9	115 km	5 km

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

Tornado History

465 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 11 fatalities, 324 injuries.

Date	Rating	Distance	Path	Fatalities
May 13, 1995	EF4	69 km	7.0 mi	0
May 13, 1995	EF4	31 km	50.0 mi	0
Apr 4, 2023	EF3	67 km	19.9 mi	0
May 27, 2019	EF3	83 km	7.3 mi	0
May 10, 2003	EF3	92 km	12.0 mi	0
Apr 8, 1999	EF3	29 km	7.5 mi	0
Jun 21, 1981	EF3	43 km	8.8 mi	1
Jul 23, 1975	EF3	83 km	14.0 mi	2
Jul 23, 1975	EF3	70 km	11.1 mi	0
Jun 13, 1975	EF3	82 km	6.6 mi	0
Apr 13, 1974	EF3	32 km	11.0 mi	0
Sep 30, 1973	EF3	20 km	0.1 mi	0
May 1, 1973	EF3	53 km	3.6 mi	2
Apr 20, 1973	EF3	80 km	9.5 mi	0
Apr 16, 1967	EF3	92 km	19.4 mi	2
Jan 24, 1967	EF3	40 km	4.3 mi	1
Jan 24, 1967	EF3	80 km	5.1 mi	1
Aug 25, 1965	EF3	61 km	3.0 mi	0
Apr 21, 1964	EF3	34 km	14.1 mi	0
May 14, 1961	EF3	71 km	127.1 mi	0

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

Wildfire History

5 wildfires (100+ acres) recorded within 100 km. Largest: UNIT 3 (1,206 acres, 1999).

Year	Name	Acres Burned	Distance
1999	UNIT 3	1,206	86 km
2002	HSB 03 2	1,130	86 km
2000	DESTRUST A	756	87 km
2006	HSB 003	674	85 km
2004	HSB 009	608	86 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	26°F (-3°C)	1.4 in	Coldest
February	29°F (-2°C)	1.4 in	Driest
March	40°F (5°C)	2.9 in
April	52°F (11°C)	3.8 in
May	63°F (17°C)	4.4 in	Wettest
June	72°F (22°C)	4.0 in
July	76°F (25°C)	4.3 in	Warmest
August	74°F (23°C)	3.5 in
September	66°F (19°C)	4.3 in
October	55°F (13°C)	3.0 in
November	41°F (5°C)	2.7 in
December	29°F (-2°C)	2.1 in

Bentley has a seasonal temperature swing of 51°F / from 26°F in January to 76°F in July. Total annual precipitation is 37.8 inches, with May being the wettest month (4.4") and February the driest (1.4").

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