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Weather & Climate in Mexico, IN

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

Mexico experiences four distinct seasons with an average annual temperature of 51°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 41.3 inches. The area receives 19.4 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 663 feet.

Temperature

25°F Jan (-4°C) 74°F Jul (23°C)
Annual Average51.0°F
6% below US avg
January Average25°F (-4°C)
July Average74°F (23°C)
Sunny Days275 days/yr

Geography

Elevation663 ft (202 m)
Area5.5 sq mi (14.2 km²)
Population Density204/sq mi
Coordinates40.8142°N, 86.1104°W
TimezoneAmerica/Indiana/Indianapolis
CountyMiami County County
Nearest AirportFort Wayne International (FWA)
49 miles away

Precipitation & Snow

Annual Rainfall 41.3"
9% above US avg
Snowfall 19.4"
Wettest Month (Jul) 4.17"
Driest Month (Feb) 1.85"

Air Quality

AQI Median41.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively Low
Risk Score52.8 / 100
Social Vulnerability53.4 / 100
Community Resilience54.8 / 100

Hazard Breakdown

Tornado Relatively Low
Hurricane Very Low
Earthquake Very Low
Wildfire Very Low
Flood Relatively Low
Hail Relatively Low
Strong Wind Relatively Moderate
Heat Wave Relatively Low
Winter Weather Relatively Low
Lightning Relatively Low
Ice Storm Very Low
Drought Relatively Moderate
Cold Wave Relatively Low
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: M3.8.

Jun 17, 2021 Illinois-Indiana border region M3.8 148 km 6 km
Sep 12, 2004 4 km NW of Manilla, Indiana M3.8 140 km 2 km
Dec 20, 1990 5 km S of Stilesville, Indiana M3.7 143 km 5 km
Apr 14, 2000 4 km NW of Heritage Lake, Indiana M3.6 129 km 5 km
Dec 17, 1990 Illinois-Indiana border region M3.2 115 km 10 km
Jan 26, 2012 5 km NE of Topeka, Indiana M3.0 99 km 5 km
Apr 17, 1990 8 km NW of Fort Recovery, Ohio M3.0 113 km 5 km
Jun 12, 2015 6 km NW of Convoy, Ohio M2.6 114 km 5 km
Jan 30, 2004 2 km S of Rockford, Ohio M2.5 124 km 5 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

587 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 144 fatalities, 2,437 injuries.

Date Rating Distance Path Fatalities
Apr 26, 1994 EF4 80 km 14.0 mi 3
Mar 20, 1976 EF4 84 km 16.7 mi 0
Apr 3, 1974 EF4 93 km 108.7 mi 18
Apr 11, 1965 EF4 51 km 48.0 mi 25
Apr 11, 1965 EF4 79 km 21.2 mi 31
Apr 11, 1965 EF4 68 km 52.5 mi 4
Apr 11, 1965 EF4 96 km 21.6 mi 5
Apr 11, 1965 EF4 81 km 21.8 mi 0
Apr 11, 1965 EF4 86 km 37.0 mi 36
Mar 6, 1956 EF4 53 km 1.9 mi 1
Mar 31, 2023 EF3 57 km 6.4 mi 0
May 27, 2019 EF3 19 km 13.7 mi 0
May 27, 2019 EF3 66 km 12.8 mi 0
Aug 24, 2016 EF3 40 km 8.6 mi 0
Nov 17, 2013 EF3 80 km 37.9 mi 0
Jun 5, 2010 EF3 21 km 7.5 mi 0
Oct 18, 2007 EF3 54 km 20.3 mi 0
May 30, 2004 EF3 10 km 4.5 mi 0
Oct 24, 2001 EF3 94 km 47.0 mi 1
Jun 11, 1998 EF3 46 km 18.5 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 7 118 km
Source: NOAA/NCEI Historical Tsunami Database.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 25°F (-4°C) 2.1 in Coldest
February 28°F (-2°C) 1.9 in Driest
March 38°F (3°C) 2.8 in
April 49°F (10°C) 3.9 in
May 61°F (16°C) 3.9 in
June 70°F (21°C) 3.7 in
July 74°F (23°C) 4.2 in Warmest, Wettest
August 71°F (22°C) 3.5 in
September 64°F (18°C) 3.1 in
October 53°F (12°C) 2.5 in
November 41°F (5°C) 3.0 in
December 29°F (-2°C) 2.9 in

Mexico has a seasonal temperature swing of 49°F / from 25°F in January to 74°F in July. Total annual precipitation is 37.4 inches, with July being the wettest month (4.2") and February the driest (1.9").

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