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Weather & Climate in New Union, TN
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
New Union enjoys a temperate climate with an average annual temperature of 57°F (14°C). Winters average 37°F in January while summers reach 76°F in July. The area gets 301 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 59.3 inches (wetter than the 38-inch national average). Air quality is rated Good with a median AQI of 40. The city sits at an elevation of 1,087 feet.
Temperature
37°F Jan (3°C)
76°F Jul (24°C)
| Annual Average | 56.7°F |
| 5% above US avg | |
| January Average | 37°F (3°C) |
| July Average | 76°F (24°C) |
| Sunny Days | 301 days/yr |
Geography
| Elevation | 1,087 ft (331 m) |
| Area | 3.8 sq mi (9.9 km²) |
| Population Density | 575/sq mi |
| Coordinates | 35.5340°N, 86.0832°W |
| Timezone | America/Chicago |
| County | Coffee County County |
| Nearest Airport | Tullahoma Regional/Wm Northern Field (THA) 14 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 40.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 63.5 / 100 |
| Social Vulnerability | 40.5 / 100 |
| Community Resilience | 35.2 / 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 | Very Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
104 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.6.
| Apr 29, 2003 | 8 km S of Valley Head, Alabama | M4.6 | 123 km | 20 km |
| Dec 8, 2001 | 5 km SW of Pleasant Groves, Alabama | M3.9 | 93 km | 0 km |
| Jul 19, 1997 | 12 km E of Cohutta, Georgia | M3.5 | 132 km | 3 km |
| Jun 19, 2007 | 10 km ENE of Spencer, Tennessee | M3.5 | 71 km | 1 km |
| Apr 11, 2006 | 5 km NE of Etowah, Tennessee | M3.3 | 147 km | 20 km |
| Mar 18, 1995 | 10 km SE of Dayton, Tennessee | M3.3 | 104 km | 26 km |
| Mar 7, 2001 | 6 km NW of Decatur, Tennessee | M3.2 | 112 km | 7 km |
| Mar 7, 2001 | 5 km WNW of Decatur, Tennessee | M3.2 | 112 km | 18 km |
| Mar 21, 2001 | 7 km ESE of Trenton, Georgia | M3.2 | 96 km | 0 km |
| Apr 5, 1994 | 10 km N of Trenton, Georgia | M3.2 | 83 km | 24 km |
| May 10, 2020 | 7 km SSE of Sewanee, Tennessee | M3.1 | 47 km | 8 km |
| Apr 29, 2003 | 7 km E of Fort Payne, Alabama | M3.1 | 128 km | 3 km |
| May 2, 2003 | 8 km S of Valley Head, Alabama | M3.1 | 124 km | 15 km |
| Jun 23, 2008 | 10 km ESE of Cohutta, Georgia | M3.1 | 132 km | 9 km |
| Jan 15, 1993 | 1 km N of Apison, Tennessee | M3.1 | 111 km | 8 km |
| Oct 30, 1991 | 9 km NNE of Eton, Georgia | M3.1 | 143 km | 8 km |
| Nov 1, 2009 | 1 km ESE of South Cleveland, Tennessee | M3.0 | 120 km | 25 km |
| Jan 21, 2022 | 16 km NNE of Eton, Georgia | M2.9 | 139 km | 15 km |
| Sep 19, 1990 | 6 km NNW of Menlo, Georgia | M2.9 | 123 km | 6 km |
| Jan 2, 2000 | 4 km SW of Lester, Alabama | M2.9 | 118 km | 13 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
527 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 113 fatalities, 1,359 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Mar 3, 2020 | EF4 | 80 km | 8.4 mi | 19 |
| Apr 27, 2011 | EF4 | 84 km | 30.2 mi | 1 |
| Apr 27, 2011 | EF4 | 64 km | 40.2 mi | 4 |
| Apr 10, 2009 | EF4 | 74 km | 23.3 mi | 2 |
| Feb 6, 2008 | EF4 | 99 km | 10.9 mi | 1 |
| Jan 24, 1997 | EF4 | 47 km | 6.5 mi | 0 |
| Dec 24, 1988 | EF4 | 85 km | 6.0 mi | 1 |
| Apr 3, 1974 | EF4 | 72 km | 28.4 mi | 10 |
| Apr 3, 1974 | EF4 | 70 km | 27.5 mi | 11 |
| Feb 29, 1952 | EF4 | 62 km | 2.0 mi | 2 |
| Feb 13, 1952 | EF4 | 42 km | 12.7 mi | 3 |
| May 8, 2024 | EF3 | 83 km | 11.5 mi | 1 |
| Apr 1, 2023 | EF3 | 77 km | 12.0 mi | 1 |
| Apr 12, 2020 | EF3 | 100 km | 19.3 mi | 2 |
| Nov 30, 2016 | EF3 | 98 km | 13.5 mi | 4 |
| Apr 28, 2014 | EF3 | 72 km | 26.8 mi | 2 |
| Mar 2, 2012 | EF3 | 95 km | 41.0 mi | 0 |
| Feb 5, 2008 | EF3 | 97 km | 50.3 mi | 22 |
| May 11, 2003 | EF3 | 54 km | 1.0 mi | 0 |
| May 11, 2003 | EF3 | 93 km | 1.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (4,213 acres, 2001).
| Year | Name | Acres Burned | Distance |
| 2001 | UNNAMED | 4,213 | 60 km |
| 1999 | UNNAMED | 2,638 | 46 km |
| 2016 | BRIDGE CREEK ROAD | 1,777 | 58 km |
| 2016 | BENCH BLUFF | 1,715 | 76 km |
| 2001 | UNNAMED | 1,691 | 48 km |
| 2003 | UNNAMED | 1,635 | 83 km |
| 2001 | UNNAMED | 1,491 | 96 km |
| 2004 | UNNAMED | 1,271 | 51 km |
| 2003 | UNNAMED | 1,259 | 96 km |
| 2001 | UNNAMED | 1,250 | 70 km |
| 2004 | UNNAMED | 1,236 | 46 km |
| 2001 | UNNAMED | 1,210 | 53 km |
| 1999 | UNNAMED | 1,201 | 54 km |
| 2001 | UNNAMED | 1,173 | 82 km |
| 2009 | LOWER FORD RD | 1,108 | 54 km |
| 2001 | UNNAMED | 1,057 | 54 km |
| 2009 | UNNAMED | 1,000 | 82 km |
| 2007 | STEVENSON | 955 | 74 km |
| 2011 | VALENTINE | 868 | 84 km |
| 2003 | UNNAMED | 828 | 93 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 37°F (3°C) | 4.9 in | Coldest |
| February | 40°F (4°C) | 4.6 in | |
| March | 49°F (9°C) | 6.3 in | Wettest |
| April | 57°F (14°C) | 4.8 in | |
| May | 65°F (18°C) | 5.3 in | |
| June | 72°F (22°C) | 4.3 in | |
| July | 76°F (24°C) | 5.0 in | Warmest |
| August | 75°F (24°C) | 3.8 in | Driest |
| September | 69°F (21°C) | 4.2 in | |
| October | 58°F (15°C) | 3.8 in | |
| November | 48°F (9°C) | 5.1 in | |
| December | 40°F (5°C) | 5.6 in |
New Union has a seasonal temperature swing of 39°F / from 37°F in January to 76°F in July. Total annual precipitation is 57.7 inches, with March being the wettest month (6.3") and August the driest (3.8").