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Weather & Climate in Fairfield, KY
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Fairfield enjoys a temperate climate with an average annual temperature of 57°F (14°C). Winters average 35°F in January while summers reach 77°F in July. The area gets 299 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 51.6 inches (wetter than the 38-inch national average). The area receives 11.9 inches of snow annually. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 710 feet.
Temperature
35°F Jan (2°C)
77°F Jul (25°C)
| Annual Average | 56.8°F |
| 5% above US avg | |
| January Average | 35°F (2°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 299 days/yr |
Geography
| Elevation | 710 ft (216 m) |
| Area | 0.3 sq mi (0.8 km²) |
| Population Density | 645/sq mi |
| Coordinates | 37.9312°N, 85.3861°W |
| Timezone | America/New_York |
| County | Nelson County County |
| Nearest Airport | Louisville Muhammad Ali International (SDF) 25 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 55.2 / 100 |
| Social Vulnerability | 29.1 / 100 |
| Community Resilience | 82.9 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively High |
| 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
14 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.9.
| Jan 24, 1990 | 6 km WNW of Alton, Indiana | M3.9 | 99 km | 10 km |
| Jan 27, 1990 | 6 km N of Alton, Indiana | M3.8 | 96 km | 5 km |
| Sep 8, 1990 | 5 km N of Owingsville, Kentucky | M3.3 | 145 km | 0 km |
| Aug 20, 2015 | 6 km SE of Lawrenceburg, Kentucky | M2.8 | 49 km | 34 km |
| May 11, 2025 | 11 km SE of High Bridge, Kentucky | M2.8 | 71 km | 30 km |
| Mar 9, 1990 | 8 km ENE of New Amsterdam, Indiana | M2.7 | 74 km | 5 km |
| Mar 21, 1990 | 1 km W of Spring Mill, Kentucky | M2.7 | 33 km | 4 km |
| Jan 12, 2023 | 4 km E of Burgin, Kentucky | M2.6 | 62 km | 35 km |
| Aug 4, 2023 | 11 km ENE of Lancaster, Kentucky | M2.6 | 86 km | 17 km |
| Mar 22, 1990 | 9 km E of Rochester, Kentucky | M2.6 | 148 km | 5 km |
| Jan 29, 1990 | 11 km S of Paoli, Indiana | M2.6 | 110 km | 0 km |
| Jan 21, 2018 | 8 km SSE of High Bridge, Kentucky | M2.6 | 66 km | 11 km |
| Mar 8, 1990 | 4 km SW of Oak Grove, Kentucky | M2.5 | 141 km | 5 km |
| Jan 4, 1999 | 9 km WNW of Mount Sterling, Kentucky | M2.5 | 119 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
463 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 63 fatalities, 1,566 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Mar 2, 2012 | EF4 | 90 km | 45.1 mi | 11 |
| May 28, 1996 | EF4 | 40 km | 30.0 mi | 0 |
| Nov 22, 1992 | EF4 | 79 km | 26.7 mi | 1 |
| Apr 3, 1974 | EF4 | 94 km | 27.1 mi | 0 |
| Apr 3, 1974 | EF4 | 76 km | 35.6 mi | 11 |
| Apr 3, 1974 | EF4 | 79 km | 20.2 mi | 0 |
| Apr 3, 1974 | EF4 | 44 km | 18.5 mi | 3 |
| Apr 3, 1974 | EF4 | 51 km | 37.9 mi | 3 |
| Apr 3, 1974 | EF4 | 31 km | 79.4 mi | 4 |
| Apr 3, 1974 | EF4 | 81 km | 31.9 mi | 7 |
| Apr 27, 1971 | EF4 | 87 km | 14.1 mi | 6 |
| Apr 27, 1971 | EF4 | 99 km | 13.0 mi | 2 |
| Dec 11, 2021 | EF3 | 58 km | 14.5 mi | 1 |
| Feb 28, 2011 | EF3 | 51 km | 2.3 mi | 0 |
| May 8, 2009 | EF3 | 86 km | 21.1 mi | 2 |
| Oct 18, 2007 | EF3 | 62 km | 4.8 mi | 0 |
| May 27, 2004 | EF3 | 77 km | 3.0 mi | 0 |
| May 23, 2000 | EF3 | 92 km | 6.0 mi | 0 |
| Apr 16, 1998 | EF3 | 90 km | 20.0 mi | 0 |
| Mar 28, 1997 | EF3 | 66 km | 2.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
7 wildfires (100+ acres) recorded within 100 km. Largest: FY2012 CRYSTAL CAVE BROADCAST BURN (2,221 acres, 2012).
| Year | Name | Acres Burned | Distance |
| 2012 | FY2012 CRYSTAL CAVE BROADCAST BURN | 2,221 | 100 km |
| 2007 | Big Woods | 1,500 | 97 km |
| 2008 | GOBLIN KNOB | 1,445 | 99 km |
| 2014 | UNNAMED | 910 | 98 km |
| 2019 | UNNAMED | 892 | 98 km |
| 2007 | DENNISON FERRY RX | 655 | 98 km |
| 2005 | UNNAMED | 576 | 100 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 35°F (2°C) | 3.3 in | Coldest |
| February | 36°F (2°C) | 3.7 in | |
| March | 46°F (8°C) | 4.6 in | |
| April | 55°F (13°C) | 4.5 in | |
| May | 64°F (18°C) | 5.0 in | Wettest |
| June | 72°F (22°C) | 4.1 in | |
| July | 77°F (25°C) | 5.0 in | Warmest |
| August | 75°F (24°C) | 3.7 in | |
| September | 68°F (20°C) | 3.5 in | |
| October | 57°F (14°C) | 2.9 in | Driest |
| November | 47°F (8°C) | 3.9 in | |
| December | 37°F (3°C) | 4.4 in |
Fairfield has a seasonal temperature swing of 42°F / from 35°F in January to 77°F in July. Total annual precipitation is 48.4 inches, with May being the wettest month (5.0") and October the driest (2.9").