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Weather & Climate in Union, AL
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Union enjoys a temperate climate with an average annual temperature of 64°F (18°C). Winters average 46°F in January while summers reach 81°F in July. The area gets 304 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 54.9 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 282 feet.
Temperature
46°F Jan (8°C)
81°F Jul (27°C)
| Annual Average | 64.1°F |
| 19% above US avg | |
| January Average | 46°F (8°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 304 days/yr |
Geography
| Elevation | 282 ft (86 m) |
| Area | 0.8 sq mi (2.1 km²) |
| Population Density | 210/sq mi |
| Coordinates | 32.9938°N, 87.9072°W |
| Timezone | America/Chicago |
| County | Greene County County |
| Nearest Airport | Golden Triangle Regional (GTR) 51 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 29.3 / 100 |
| Social Vulnerability | 98.1 / 100 |
| Community Resilience | 21.2 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Moderate |
| Winter Weather | Very Low |
| Lightning | Relatively Moderate |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Very Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
57 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.7.
| Jul 16, 1993 | 2 km SSW of Silas, Alabama | M3.7 | 145 km | 5 km |
| Aug 19, 2004 | 8 km W of Brantleyville, Alabama | M3.6 | 91 km | 5 km |
| Mar 25, 1996 | 11 km NNE of Quitman, Mississippi | M3.5 | 120 km | 5 km |
| Jun 30, 2015 | 12 km W of Union, Alabama | M3.5 | 13 km | 0 km |
| May 28, 1995 | 14 km WSW of Coker, Alabama | M3.4 | 23 km | 1 km |
| Jun 24, 1998 | 11 km W of Demopolis, Alabama | M3.4 | 55 km | 5 km |
| Apr 21, 2009 | 12 km S of Centreville, Alabama | M3.4 | 78 km | 13 km |
| May 9, 2004 | 8 km WNW of Brantleyville, Alabama | M3.3 | 92 km | 5 km |
| Jul 15, 1995 | 21 km SSW of Berry, Alabama | M3.3 | 58 km | 1 km |
| Mar 22, 2005 | 9 km NNE of Coffeeville, Alabama | M3.3 | 130 km | 5 km |
| Jun 23, 1990 | 12 km E of Vernon, Alabama | M3.2 | 86 km | 1 km |
| Sep 2, 1990 | 12 km NW of Fayette, Alabama | M3.2 | 85 km | 1 km |
| Mar 12, 2015 | 14 km W of Union, Alabama | M3.1 | 15 km | 0 km |
| Jun 28, 2008 | 7 km WNW of Brookwood, Alabama | M3.1 | 57 km | 5 km |
| Jun 23, 1990 | 8 km N of Belk, Alabama | M3.1 | 81 km | 6 km |
| May 16, 2008 | 10 km W of Coffeeville, Alabama | M3.1 | 139 km | 5 km |
| Feb 27, 2015 | 11 km WSW of Union, Alabama | M3.1 | 13 km | 0 km |
| May 28, 2000 | 13 km S of Winfield, Alabama | M3.0 | 91 km | 5 km |
| May 4, 2007 | 4 km SSW of Jasper, Alabama | M3.0 | 106 km | 5 km |
| Sep 11, 1992 | 5 km SSE of Riverview, Alabama | M3.0 | 43 km | 7 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
9 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 2020 | Sally | Category 2 | 109 mph | 249 km |
| 2020 | Zeta | Category 1 | — | 200 km |
| 2005 | Dennis | Category 3 | 121 mph | 251 km |
| 2005 | Katrina | Category 3 | 92 mph | 186 km |
| 2004 | Ivan | Category 2 | 81 mph | 178 km |
| 1998 | Georges | Category 2 | 104 mph | 282 km |
| 1997 | Danny | Category 1 | 81 mph | 288 km |
| 1995 | Opal | Category 3 | 115 mph | 165 km |
| 1995 | Erin | Category 1 | 86 mph | 269 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
573 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 206 fatalities, 3,401 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Apr 8, 1998 | EF5 | 70 km | 30.3 mi | 32 |
| Apr 3, 1974 | EF5 | 95 km | 79.5 mi | 28 |
| Apr 27, 2011 | EF4 | 38 km | 127.8 mi | 13 |
| Apr 27, 2011 | EF4 | 5 km | 80.7 mi | 64 |
| Dec 16, 2000 | EF4 | 20 km | 18.0 mi | 11 |
| Feb 23, 1975 | EF4 | 30 km | 14.4 mi | 1 |
| Apr 3, 1974 | EF4 | 41 km | 110.6 mi | 3 |
| May 27, 1973 | EF4 | 53 km | 139.1 mi | 7 |
| Mar 5, 1963 | EF4 | 97 km | 14.9 mi | 0 |
| May 1, 1953 | EF4 | 94 km | 0.1 mi | 2 |
| Mar 30, 2022 | EF3 | 79 km | 29.2 mi | 0 |
| Mar 25, 2021 | EF3 | 32 km | 11.1 mi | 0 |
| Mar 25, 2021 | EF3 | 37 km | 79.7 mi | 0 |
| Mar 25, 2021 | EF3 | 70 km | 50.1 mi | 0 |
| Feb 23, 2019 | EF3 | 74 km | 9.7 mi | 1 |
| Apr 11, 2013 | EF3 | 98 km | 66.4 mi | 1 |
| Apr 27, 2011 | EF3 | 44 km | 72.1 mi | 7 |
| Apr 27, 2011 | EF3 | 53 km | 20.3 mi | 0 |
| Apr 27, 2011 | EF3 | 28 km | 22.5 mi | 0 |
| Apr 27, 2011 | EF3 | 53 km | 23.7 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: OAK COMPARTMENT 50/51 RX (5,018 acres, 2024).
| Year | Name | Acres Burned | Distance |
| 2024 | OAK COMPARTMENT 50/51 RX | 5,018 | 48 km |
| 2005 | UNNAMED | 4,870 | 99 km |
| 2019 | OK C-49 | 4,745 | 51 km |
| 2022 | OK TORNADO UNIT | 4,504 | 42 km |
| 2013 | UNNAMED | 4,279 | 88 km |
| 2022 | OK COMP 40/53 | 4,093 | 43 km |
| 2020 | OK PAYNE LAKE | 4,078 | 43 km |
| 2006 | UNNAMED | 4,021 | 98 km |
| 2022 | OK C-1/2/3/4 COMBINED | 3,841 | 44 km |
| 2022 | OK COMP 50/51/52 | 3,786 | 48 km |
| 2016 | MSNXR FY16 RX 1703B | 3,633 | 90 km |
| 1988 | UNNAMED | 3,616 | 98 km |
| 1990 | UNNAMED | 3,605 | 91 km |
| 2002 | UNNAMED | 3,593 | 100 km |
| 2024 | OAK COMP 16/17/18 RX | 3,579 | 41 km |
| 2005 | UNNAMED | 3,556 | 36 km |
| 2015 | UNNAMED | 3,507 | 89 km |
| 2015 | UNNAMED | 3,482 | 94 km |
| 2021 | OK 234 | 3,482 | 51 km |
| 2014 | UNNAMED | 3,414 | 50 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 46°F (8°C) | 5.7 in | Coldest |
| February | 47°F (9°C) | 5.1 in | |
| March | 55°F (13°C) | 6.4 in | Wettest |
| April | 62°F (17°C) | 5.4 in | |
| May | 70°F (21°C) | 4.4 in | |
| June | 77°F (25°C) | 3.9 in | |
| July | 81°F (27°C) | 4.9 in | Warmest |
| August | 80°F (26°C) | 3.7 in | |
| September | 74°F (24°C) | 3.6 in | |
| October | 63°F (17°C) | 3.3 in | Driest |
| November | 54°F (12°C) | 4.5 in | |
| December | 46°F (8°C) | 5.0 in |
Union has a seasonal temperature swing of 35°F / from 46°F in January to 81°F in July. Total annual precipitation is 55.8 inches, with March being the wettest month (6.4") and October the driest (3.3").