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Weather & Climate in Corydon, IN
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Corydon enjoys a temperate climate with an average annual temperature of 56°F (14°C). Winters average 33°F in January while summers reach 77°F in July. The area gets 290 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 51.0 inches (wetter than the 38-inch national average). Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 566 feet.
Temperature
33°F Jan (1°C)
77°F Jul (25°C)
| Annual Average | 56.3°F |
| 4% above US avg | |
| January Average | 33°F (1°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 290 days/yr |
Geography
| Elevation | 566 ft (173 m) |
| Area | 1.7 sq mi (4.3 km²) |
| Population Density | 1,918/sq mi |
| Coordinates | 38.2129°N, 86.1256°W |
| Timezone | America/Indiana/Indianapolis |
| County | Harrison County County |
| Nearest Airport | Louisville Muhammad Ali International (SDF) 21 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 51.1 / 100 |
| Social Vulnerability | 28.3 / 100 |
| Community Resilience | 42.7 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Low |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
29 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.6.
| Jun 18, 2002 | 6 km SW of Parkers Settlement, Indiana | M4.6 | 145 km | 16 km |
| Jan 24, 1990 | 6 km WNW of Alton, Indiana | M3.9 | 33 km | 10 km |
| Dec 7, 2000 | 7 km W of Evansville, Indiana | M3.9 | 135 km | 5 km |
| Jan 27, 1990 | 6 km N of Alton, Indiana | M3.8 | 27 km | 5 km |
| May 10, 2012 | 0 km NW of Emison, Indiana | M3.1 | 134 km | 11 km |
| May 30, 2023 | 6 km W of Calhoun, Kentucky | M3.0 | 130 km | 0 km |
| Nov 28, 1998 | 6 km SW of Bremen, Kentucky | M2.9 | 141 km | 0 km |
| Aug 20, 2015 | 6 km SE of Lawrenceburg, Kentucky | M2.8 | 115 km | 34 km |
| Jan 28, 1991 | 9 km SW of Sacramento, Kentucky | M2.8 | 143 km | 1 km |
| May 11, 2025 | 11 km SE of High Bridge, Kentucky | M2.8 | 142 km | 30 km |
| Mar 6, 2000 | 0 km E of Darmstadt, Indiana | M2.7 | 127 km | 5 km |
| May 10, 2012 | 1 km NNW of Emison, Indiana | M2.7 | 135 km | 9 km |
| Aug 15, 2001 | 5 km SSE of Spottsville, Kentucky | M2.7 | 120 km | 19 km |
| Mar 21, 1990 | 1 km W of Spring Mill, Kentucky | M2.7 | 42 km | 4 km |
| Mar 9, 1990 | 8 km ENE of New Amsterdam, Indiana | M2.7 | 10 km | 5 km |
| Jan 12, 2023 | 4 km E of Burgin, Kentucky | M2.6 | 134 km | 35 km |
| Sep 12, 2015 | 5 km SE of Corydon, Kentucky | M2.6 | 145 km | 17 km |
| Feb 27, 2020 | 5 km SW of Bremen, Kentucky | M2.6 | 140 km | 27 km |
| Apr 18, 2008 | 7 km NNW of Mount Carmel, Illinois | M2.6 | 148 km | 10 km |
| Mar 22, 1990 | 9 km E of Rochester, Kentucky | M2.6 | 127 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
496 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 83 fatalities, 1,520 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Apr 3, 1974 | EF5 | 64 km | 32.0 mi | 31 |
| Apr 3, 1974 | EF5 | 57 km | 68.0 mi | 6 |
| Mar 2, 2012 | EF4 | 25 km | 45.1 mi | 11 |
| May 28, 1996 | EF4 | 34 km | 30.0 mi | 0 |
| Jun 2, 1990 | EF4 | 72 km | 11.0 mi | 1 |
| Jun 2, 1990 | EF4 | 72 km | 18.0 mi | 0 |
| Apr 3, 1974 | EF4 | 97 km | 27.1 mi | 0 |
| Apr 3, 1974 | EF4 | 58 km | 37.9 mi | 3 |
| Apr 3, 1974 | EF4 | 96 km | 14.0 mi | 0 |
| Apr 3, 1974 | EF4 | 33 km | 18.5 mi | 3 |
| Apr 3, 1974 | EF4 | 94 km | 79.4 mi | 4 |
| Apr 3, 1974 | EF4 | 50 km | 35.6 mi | 11 |
| May 25, 2011 | EF3 | 75 km | 6.8 mi | 0 |
| Feb 28, 2011 | EF3 | 86 km | 2.3 mi | 0 |
| Mar 8, 2009 | EF3 | 82 km | 1.1 mi | 0 |
| Oct 18, 2007 | EF3 | 58 km | 4.8 mi | 0 |
| May 30, 2004 | EF3 | 41 km | 15.0 mi | 1 |
| May 23, 2000 | EF3 | 78 km | 6.0 mi | 0 |
| Apr 9, 1999 | EF3 | 92 km | 3.0 mi | 0 |
| Apr 9, 1999 | EF3 | 96 km | 15.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: JPG 09 1 (6,113 acres, 1998).
| Year | Name | Acres Burned | Distance |
| 1998 | JPG 09 1 | 6,113 | 96 km |
| 2005 | RX BURNPLAN AREA 2-06 | 5,054 | 96 km |
| 2007 | UNITS 8-9 2008 | 4,316 | 94 km |
| 2006 | UNIT 19 06 WUI | 3,412 | 94 km |
| 2002 | UNIT 8 | 2,753 | 94 km |
| 2001 | 01 UNIT 16 | 2,361 | 97 km |
| 2011 | WUI UNITS 0 AND 1 2011 | 2,215 | 94 km |
| 2004 | UNIT 19 | 2,004 | 93 km |
| 2003 | UNIT 8 03 | 1,971 | 96 km |
| 2008 | FY 09 UNIT 42 RX FALL 2008 | 1,942 | 99 km |
| 2000 | JPG 14 | 1,908 | 95 km |
| 2003 | UNIT 16 03 | 1,809 | 96 km |
| 2002 | UNIT 9 | 1,485 | 95 km |
| 1995 | UNNAMED | 1,462 | 98 km |
| 2017 | UNNAMED | 1,336 | 42 km |
| 2007 | UNNAMED | 1,334 | 98 km |
| 2002 | UNIT 28 | 1,259 | 99 km |
| 2004 | UNIT 14 | 1,170 | 94 km |
| 2019 | UNNAMED | 1,057 | 40 km |
| 2021 | UNNAMED | 959 | 40 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 33°F (1°C) | 3.4 in | Coldest |
| February | 35°F (2°C) | 3.3 in | |
| March | 45°F (7°C) | 4.5 in | |
| April | 54°F (12°C) | 4.4 in | |
| May | 63°F (17°C) | 4.6 in | Wettest |
| June | 72°F (22°C) | 3.9 in | |
| July | 77°F (25°C) | 4.5 in | Warmest |
| August | 74°F (24°C) | 3.8 in | |
| September | 68°F (20°C) | 3.1 in | |
| October | 56°F (13°C) | 2.8 in | Driest |
| November | 46°F (8°C) | 3.8 in | |
| December | 36°F (2°C) | 3.8 in |
Corydon has a seasonal temperature swing of 44°F / from 33°F in January to 77°F in July. Total annual precipitation is 45.8 inches, with May being the wettest month (4.6") and October the driest (2.8").