Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Wellington experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 26°F in January while summers reach 75°F in July. Annual precipitation totals 40.9 inches. The area receives 20.3 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 695 feet.
Temperature
26°F Jan (-3°C)75°F Jul (24°C)
Annual Average
52.3°F
3% below US avg
January Average
26°F (-3°C)
July Average
75°F (24°C)
Geography
Elevation
695 ft (212 m)
Area
0.3 sq mi (0.7 km²)
Population Density
850/sq mi
Coordinates
40.5411°N, 87.6799°W
Timezone
America/Chicago
County
Iroquois County County
Nearest Airport
Vermilion Regional (DNV) 24 miles away
Precipitation & Snow
Annual Rainfall40.9"
8% above US avg
Snowfall20.3"
Wettest Month (Jun)4.89"
Driest Month (Feb)1.96"
Air Quality
Natural Hazard Risk
Overall Risk
Relatively Low
Risk Score
74.0 / 100
Social Vulnerability
34.0 / 100
Community Resilience
65.5 / 100
Hazard Breakdown
Tornado
Relatively Low
Hurricane
Very Low
Earthquake
Relatively Low
Wildfire
Very Low
Flood
Relatively Moderate
Hail
Relatively Low
Strong Wind
Relatively Low
Heat Wave
Relatively Low
Winter Weather
Relatively Low
Lightning
Relatively Low
Ice Storm
Very Low
Drought
Very Low
Cold Wave
Relatively High
Landslide
Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
9 earthquakes (M2.5+) recorded within 150 km since 1990.
Strongest on record: M4.2.
Jun 28, 2004
12 km NW of Dayton, Illinois
M4.2
145 km
10 km
Jun 17, 2021
Illinois-Indiana border region
M3.8
86 km
6 km
Dec 20, 1990
5 km S of Stilesville, Indiana
M3.7
138 km
5 km
Apr 14, 2000
4 km NW of Heritage Lake, Indiana
M3.6
117 km
5 km
May 13, 2025
7 km SSW of Lerna, Illinois
M3.3
143 km
10 km
Nov 4, 2013
1 km SSW of Lyons, Illinois
M3.2
141 km
1 km
Dec 17, 1990
Illinois-Indiana border region
M3.2
75 km
10 km
Dec 16, 1996
3 km NNE of Terre Haute, Indiana
M3.1
118 km
5 km
Mar 15, 2025
6 km W of Dwight, Illinois
M2.6
92 km
5 km
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tornado History
654 tornadoes (EF0+) recorded within 100 km since 1950.
Strongest on record: EF4. Total: 63 fatalities, 887 injuries.
Date
Rating
Distance
Path
Fatalities
Apr 26, 1994
EF4
62 km
14.0 mi
3
Mar 20, 1976
EF4
58 km
16.7 mi
0
Apr 3, 1974
EF4
47 km
108.7 mi
18
Apr 11, 1965
EF4
76 km
21.8 mi
0
Apr 11, 1965
EF4
90 km
45.7 mi
28
Apr 17, 1963
EF4
79 km
57.3 mi
1
Nov 17, 2013
EF3
75 km
37.9 mi
0
Nov 17, 2013
EF3
53 km
29.8 mi
0
Nov 17, 2013
EF3
95 km
18.7 mi
0
Jun 5, 2010
EF3
58 km
7.8 mi
0
Apr 19, 1996
EF3
71 km
4.0 mi
0
Apr 19, 1996
EF3
52 km
2.0 mi
1
Apr 2, 1982
EF3
62 km
12.0 mi
0
Jun 2, 1980
EF3
73 km
18.1 mi
1
Jun 25, 1978
EF3
61 km
27.4 mi
0
Mar 12, 1976
EF3
51 km
38.5 mi
1
Jun 20, 1974
EF3
85 km
4.5 mi
0
Apr 3, 1974
EF3
74 km
14.9 mi
0
Apr 3, 1974
EF3
78 km
5.9 mi
1
Apr 3, 1974
EF3
34 km
25.9 mi
0
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Tsunami History
1 tsunami recorded within 500 km.
Highest wave on record: 3.0 m (10 ft).
Year
Location
Cause
Max Wave
Deaths
Distance
1954
MICHIGAN CITY, IN (LAKE MICHIGAN)
Avalanche
3.0 m
7
145 km
Source: NOAA/NCEI Historical Tsunami Database.
Wildfire History
6 wildfires (100+ acres) recorded within 100 km.
Largest: UNNAMED (1,664 acres, 2019).
Year
Name
Acres Burned
Distance
2019
UNNAMED
1,664
99 km
2000
UNNAMED
1,602
51 km
2021
NORTHEAST PRAIRIE UNIT 3
978
96 km
2024
NORTHEAST PRAIRIE 3 RX
938
98 km
2021
UNNAMED
738
99 km
2019
UNNAMED
698
99 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
26°F (-3°C)
2.1 in
Coldest
February
30°F (-1°C)
2.0 in
Driest
March
41°F (5°C)
2.8 in
April
53°F (11°C)
4.0 in
May
63°F (17°C)
4.8 in
June
72°F (22°C)
4.9 in
Wettest
July
75°F (24°C)
4.6 in
Warmest
August
73°F (23°C)
4.0 in
September
67°F (19°C)
3.4 in
October
55°F (13°C)
3.4 in
November
42°F (5°C)
2.9 in
December
31°F (-1°C)
2.1 in
Wellington has a seasonal temperature swing of 49°F / from 26°F in January to 75°F in July. Total annual precipitation is 40.9 inches, with June being the wettest month (4.9") and February the driest (2.0").