Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Dayton experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 25°F in January while summers reach 74°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 39.8 inches. The area receives 20.5 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 672 feet.
Temperature
25°F Jan (-4°C)74°F Jul (23°C)
Annual Average
51.6°F
4% below US avg
January Average
25°F (-4°C)
July Average
74°F (23°C)
Sunny Days
275 days/yr
Geography
Elevation
672 ft (205 m)
Area
1.1 sq mi (2.7 km²)
Population Density
912/sq mi
Coordinates
40.3752°N, 86.7740°W
Timezone
America/Indiana/Indianapolis
County
Tippecanoe County County
Nearest Airport
Vermilion Regional (DNV) 45 miles away
Precipitation & Snow
Annual Rainfall39.8"
5% above US avg
Snowfall20.5"
Wettest Month (Jun)4.02"
Driest Month (Feb)1.77"
Air Quality
AQI Median
41.0
Rating
Good
Natural Hazard Risk
Overall Risk
Relatively Moderate
Risk Score
81.8 / 100
Social Vulnerability
29.8 / 100
Community Resilience
65.1 / 100
Hazard Breakdown
Tornado
Relatively Moderate
Hurricane
Very Low
Earthquake
Relatively Low
Wildfire
Very Low
Flood
Relatively Moderate
Hail
Relatively Moderate
Strong Wind
Relatively 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 Low
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
6 earthquakes (M2.5+) recorded within 150 km since 1990.
Strongest on record: M3.8.
Jun 17, 2021
Illinois-Indiana border region
M3.8
75 km
6 km
Sep 12, 2004
4 km NW of Manilla, Indiana
M3.8
128 km
2 km
Dec 20, 1990
5 km S of Stilesville, Indiana
M3.7
88 km
5 km
Apr 14, 2000
4 km NW of Heritage Lake, Indiana
M3.6
68 km
5 km
Dec 17, 1990
Illinois-Indiana border region
M3.2
41 km
10 km
Dec 16, 1996
3 km NNE of Terre Haute, Indiana
M3.1
111 km
5 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
599 tornadoes (EF0+) recorded within 100 km since 1950.
Strongest on record: EF4. Total: 82 fatalities, 1,717 injuries.
Date
Rating
Distance
Path
Fatalities
Jun 11, 1998
EF4
96 km
13.2 mi
0
Apr 26, 1994
EF4
19 km
14.0 mi
3
Mar 20, 1976
EF4
22 km
16.7 mi
0
Apr 3, 1974
EF4
33 km
108.7 mi
18
May 14, 1972
EF4
90 km
30.0 mi
0
Apr 11, 1965
EF4
40 km
45.7 mi
28
Apr 11, 1965
EF4
34 km
48.0 mi
25
Apr 11, 1965
EF4
7 km
21.8 mi
0
May 27, 2019
EF3
87 km
13.7 mi
0
Aug 24, 2016
EF3
51 km
8.6 mi
0
Nov 17, 2013
EF3
6 km
37.9 mi
0
Jun 5, 2010
EF3
58 km
7.5 mi
0
May 30, 2004
EF3
67 km
4.5 mi
0
Jun 11, 1998
EF3
60 km
18.5 mi
0
Nov 22, 1992
EF3
79 km
9.0 mi
0
Nov 22, 1992
EF3
74 km
12.0 mi
0
Jun 2, 1980
EF3
41 km
18.1 mi
1
Jun 25, 1978
EF3
18 km
27.4 mi
0
Jun 25, 1978
EF3
82 km
1.0 mi
0
Jul 7, 1977
EF3
44 km
11.6 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
148 km
Source: NOAA/NCEI Historical Tsunami Database.
Wildfire History
1 wildfire (100+ acres) recorded within 100 km.
Largest: UNNAMED (1,602 acres, 2000).
Year
Name
Acres Burned
Distance
2000
UNNAMED
1,602
96 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
25°F (-4°C)
1.9 in
Coldest
February
28°F (-2°C)
1.8 in
Driest
March
39°F (4°C)
2.9 in
April
50°F (10°C)
3.7 in
May
61°F (16°C)
3.9 in
June
71°F (21°C)
4.0 in
Wettest
July
74°F (23°C)
3.8 in
Warmest
August
72°F (22°C)
4.0 in
September
65°F (19°C)
3.0 in
October
54°F (12°C)
2.6 in
November
42°F (5°C)
3.0 in
December
30°F (-1°C)
2.9 in
Dayton has a seasonal temperature swing of 49°F / from 25°F in January to 74°F in July. Total annual precipitation is 37.5 inches, with June being the wettest month (4.0") and February the driest (1.8").
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