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Weather & Climate in Unionville, TN
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Unionville enjoys a temperate climate with an average annual temperature of 58°F (14°C). Winters average 37°F in January while summers reach 78°F in July. The area gets 318 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Air quality is rated Good with a median AQI of 40. The city sits at an elevation of 710 feet.
Temperature
37°F Jan (3°C)
78°F Jul (25°C)
| Annual Average | 57.9°F |
| 7% above US avg | |
| January Average | 37°F (3°C) |
| July Average | 78°F (25°C) |
| Sunny Days | 318 days/yr |
Geography
| Elevation | 710 ft (216 m) |
| Area | 9.0 sq mi (23.4 km²) |
| Population Density | 194/sq mi |
| Coordinates | 35.6118°N, 86.5739°W |
| Timezone | America/Chicago |
| County | Bedford County County |
| Nearest Airport | Tullahoma Regional/Wm Northern Field (THA) 24 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 40.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 69.2 / 100 |
| Social Vulnerability | 51.1 / 100 |
| Community Resilience | 26.6 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
51 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.9.
| Dec 8, 2001 | 5 km SW of Pleasant Groves, Alabama | M3.9 | 105 km | 0 km |
| Jun 19, 2007 | 10 km ENE of Spencer, Tennessee | M3.5 | 111 km | 1 km |
| Mar 18, 1995 | 10 km SE of Dayton, Tennessee | M3.3 | 149 km | 26 km |
| Apr 5, 1994 | 10 km N of Trenton, Georgia | M3.2 | 122 km | 24 km |
| Mar 21, 2001 | 7 km ESE of Trenton, Georgia | M3.2 | 134 km | 0 km |
| May 10, 2020 | 7 km SSE of Sewanee, Tennessee | M3.1 | 81 km | 8 km |
| Aug 7, 2006 | 8 km NNE of Trenton, Georgia | M2.9 | 126 km | 14 km |
| Jan 2, 2000 | 4 km SW of Lester, Alabama | M2.9 | 91 km | 10 km |
| Jan 2, 2000 | 4 km SW of Lester, Alabama | M2.9 | 91 km | 13 km |
| May 13, 1999 | 7 km NW of Elkmont, Alabama | M2.8 | 81 km | 10 km |
| May 13, 1999 | 11 km S of Pulaski, Tennessee | M2.8 | 71 km | 20 km |
| Sep 20, 1990 | 6 km N of Elkmont, Alabama | M2.8 | 78 km | 4 km |
| Jun 8, 2014 | 8 km WNW of Dayton, Tennessee | M2.8 | 135 km | 14 km |
| May 10, 2020 | 7 km SSE of Sewanee, Tennessee | M2.8 | 82 km | 6 km |
| Jan 16, 2019 | 5 km SSE of Wartrace, Tennessee | M2.8 | 28 km | 7 km |
| Oct 20, 2017 | 5 km ENE of Hollywood, Alabama | M2.7 | 113 km | 5 km |
| Aug 17, 1991 | 5 km NNE of Trenton, Georgia | M2.7 | 126 km | 21 km |
| Mar 11, 2006 | 17 km E of Olivet, Tennessee | M2.7 | 138 km | 2 km |
| Mar 11, 2017 | 6 km SW of Trinity, Alabama | M2.7 | 127 km | 5 km |
| Jan 7, 2018 | 2 km W of Indian Springs, Georgia | M2.7 | 145 km | 11 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
583 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 83 fatalities, 1,498 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Apr 10, 2009 | EF4 | 30 km | 23.3 mi | 2 |
| Jan 24, 1997 | EF4 | 20 km | 6.5 mi | 0 |
| May 18, 1995 | EF4 | 96 km | 39.0 mi | 1 |
| Dec 24, 1988 | EF4 | 45 km | 6.0 mi | 1 |
| Apr 3, 1974 | EF4 | 68 km | 27.5 mi | 11 |
| Feb 29, 1952 | EF4 | 51 km | 2.0 mi | 2 |
| Feb 13, 1952 | EF4 | 52 km | 12.7 mi | 3 |
| May 8, 2024 | EF3 | 39 km | 11.5 mi | 1 |
| Apr 1, 2023 | EF3 | 71 km | 12.0 mi | 1 |
| Mar 3, 2020 | EF3 | 71 km | 60.1 mi | 5 |
| Apr 28, 2014 | EF3 | 67 km | 26.8 mi | 2 |
| Apr 11, 2008 | EF3 | 65 km | 4.7 mi | 0 |
| Apr 11, 2008 | EF3 | 84 km | 10.3 mi | 0 |
| Feb 5, 2008 | EF3 | 88 km | 50.3 mi | 22 |
| Apr 7, 2006 | EF3 | 81 km | 22.7 mi | 7 |
| Apr 7, 2006 | EF3 | 98 km | 18.8 mi | 0 |
| May 11, 2003 | EF3 | 41 km | 1.0 mi | 0 |
| May 11, 2003 | EF3 | 53 km | 1.0 mi | 0 |
| May 5, 2003 | EF3 | 38 km | 1.6 mi | 0 |
| Apr 28, 2002 | EF3 | 24 km | 3.2 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
15 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (2,638 acres, 1999).
| Year | Name | Acres Burned | Distance |
| 1999 | UNNAMED | 2,638 | 91 km |
| 2001 | UNNAMED | 1,691 | 92 km |
| 2004 | UNNAMED | 1,271 | 72 km |
| 2004 | UNNAMED | 1,236 | 89 km |
| 2001 | UNNAMED | 1,210 | 98 km |
| 1999 | UNNAMED | 1,201 | 99 km |
| 2009 | LOWER FORD RD | 1,108 | 98 km |
| 2001 | UNNAMED | 1,057 | 98 km |
| 2004 | UNNAMED | 826 | 84 km |
| 2001 | UNNAMED | 703 | 93 km |
| 2003 | FIRST FIRE | 640 | 100 km |
| 2001 | UNNAMED | 632 | 97 km |
| 1999 | UNNAMED | 564 | 99 km |
| 2014 | MERIWETHER LEWIS | 513 | 80 km |
| 1997 | UNNAMED | 508 | 96 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 37°F (3°C) | 4.6 in | Coldest |
| February | 41°F (5°C) | 4.2 in | |
| March | 49°F (10°C) | 6.0 in | Wettest |
| April | 58°F (14°C) | 4.6 in | |
| May | 66°F (19°C) | 5.2 in | |
| June | 74°F (23°C) | 4.1 in | |
| July | 78°F (25°C) | 4.8 in | Warmest |
| August | 77°F (25°C) | 3.5 in | Driest |
| September | 71°F (21°C) | 4.1 in | |
| October | 59°F (15°C) | 3.7 in | |
| November | 49°F (9°C) | 4.9 in | |
| December | 41°F (5°C) | 5.2 in |
Unionville has a seasonal temperature swing of 40°F / from 37°F in January to 78°F in July. Total annual precipitation is 54.7 inches, with March being the wettest month (6.0") and August the driest (3.5").