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Weather & Climate in Mount Vernon, AL
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Mount Vernon enjoys a temperate climate with an average annual temperature of 64°F (18°C). Winters average 47°F in January while summers reach 81°F in July. The area gets 308 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 41. The city sits at an elevation of 42 feet.
Temperature
47°F Jan (8°C)
81°F Jul (27°C)
| Annual Average | 64.4°F |
| 19% above US avg | |
| January Average | 47°F (8°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 308 days/yr |
Geography
| Elevation | 42 ft (13 m) |
| Area | 5.3 sq mi (13.8 km²) |
| Population Density | 244/sq mi |
| Coordinates | 31.0877°N, 88.0132°W |
| Timezone | America/Chicago |
| County | Washington County County |
| Nearest Airport | Mobile Regional (MOB) 31 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 45.6 / 100 |
| Social Vulnerability | 78.8 / 100 |
| Community Resilience | 60.3 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively Moderate |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Relatively Low |
| Ice Storm | Very Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Coastal Flood | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
21 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.
| Oct 24, 1997 | 15 km NNW of Flomaton, Alabama | M4.8 | 64 km | 10 km |
| Jul 16, 1993 | 2 km SSW of Silas, Alabama | M3.7 | 80 km | 5 km |
| Oct 26, 1997 | 11 km NNW of Flomaton, Alabama | M3.7 | 68 km | 10 km |
| Feb 18, 2011 | 22 km SSE of Dauphin Island, Alabama | M3.5 | 112 km | 5 km |
| Mar 25, 1996 | 11 km NNE of Quitman, Mississippi | M3.5 | 132 km | 5 km |
| Mar 22, 2005 | 9 km NNE of Coffeeville, Alabama | M3.3 | 83 km | 5 km |
| Sep 30, 2003 | 10 km NNW of Atmore, Alabama | M3.3 | 47 km | 5 km |
| May 4, 1997 | 9 km ESE of Atmore, Alabama | M3.1 | 59 km | 5 km |
| Apr 11, 2019 | 6 km NNW of Pollard, Alabama | M3.1 | 78 km | 10 km |
| Mar 11, 2019 | 4 km N of Flomaton, Alabama | M3.1 | 71 km | 5 km |
| May 16, 2008 | 10 km W of Coffeeville, Alabama | M3.1 | 78 km | 5 km |
| Oct 28, 1997 | 11 km NNW of Flomaton, Alabama | M3.0 | 68 km | 10 km |
| Sep 25, 2003 | 14 km N of Atmore, Alabama | M2.9 | 48 km | 0 km |
| May 7, 1998 | 9 km SSE of Bellamy, Alabama | M2.8 | 143 km | 10 km |
| Mar 7, 2019 | 2 km NW of Jay, Florida | M2.8 | 81 km | 5 km |
| Mar 24, 2019 | 2 km ESE of Century, Florida | M2.7 | 75 km | 5 km |
| Apr 12, 2019 | 13 km NW of Flomaton, Alabama | M2.6 | 64 km | 5 km |
| Nov 10, 2012 | 16 km S of Dauphin Island, Alabama | M2.6 | 109 km | 11 km |
| Sep 5, 2000 | 2 km NNE of Sweet Water, Alabama | M2.5 | 116 km | 0 km |
| Sep 5, 2000 | 1 km ENE of Monroeville, Alabama | M2.5 | 83 km | 3 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
19 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2021 | Ida | Category 4 | 150 mph | 272 km |
| 2020 | Zeta | Category 3 | 115 mph | 91 km |
| 2020 | Sally | Category 2 | 109 mph | 67 km |
| 2018 | Michael | Category 5 | 161 mph | 269 km |
| 2017 | Nate | Category 1 | 86 mph | 121 km |
| 2012 | Isaac | Category 1 | 81 mph | 275 km |
| 2009 | Ida | Category 1 | 86 mph | 295 km |
| 2005 | Katrina | Category 4 | 127 mph | 151 km |
| 2005 | Dennis | Category 4 | 138 mph | 75 km |
| 2005 | Cindy | Category 1 | 75 mph | 290 km |
| 2004 | Ivan | Category 4 | 127 mph | 46 km |
| 1998 | Georges | Category 2 | 109 mph | 101 km |
| 1998 | Earl | Category 2 | 98 mph | 221 km |
| 1997 | Danny | Category 1 | 81 mph | 77 km |
| 1995 | Opal | Category 3 | 127 mph | 116 km |
| 1995 | Erin | Category 2 | 98 mph | 73 km |
| 1988 | Florence | Category 1 | 81 mph | 239 km |
| 1985 | Elena | Category 3 | 127 mph | 124 km |
| 1985 | Kate | Category 2 | 98 mph | 264 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
568 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 12 fatalities, 342 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Apr 23, 1971 | EF4 | 82 km | 25.4 mi | 0 |
| Nov 30, 2022 | EF3 | 54 km | 19.0 mi | 0 |
| Feb 15, 2016 | EF3 | 65 km | 16.5 mi | 0 |
| Apr 15, 2011 | EF3 | 59 km | 18.3 mi | 4 |
| Oct 13, 2001 | EF3 | 81 km | 1.0 mi | 0 |
| Nov 21, 1997 | EF3 | 30 km | 1.0 mi | 0 |
| Nov 4, 1988 | EF3 | 81 km | 8.0 mi | 0 |
| Mar 24, 1984 | EF3 | 49 km | 4.0 mi | 0 |
| Mar 20, 1983 | EF3 | 54 km | 1.0 mi | 0 |
| Apr 25, 1982 | EF3 | 94 km | 1.5 mi | 0 |
| May 19, 1980 | EF3 | 64 km | 4.3 mi | 0 |
| Apr 18, 1978 | EF3 | 73 km | 10.5 mi | 0 |
| Mar 27, 1976 | EF3 | 64 km | 13.9 mi | 0 |
| Dec 20, 1971 | EF3 | 53 km | 1.0 mi | 0 |
| Mar 2, 1971 | EF3 | 92 km | 4.9 mi | 0 |
| Nov 3, 1968 | EF3 | 37 km | 70.4 mi | 0 |
| Dec 10, 1961 | EF3 | 92 km | 0.2 mi | 0 |
| Feb 26, 1958 | EF3 | 89 km | 29.1 mi | 4 |
| Jan 23, 1953 | EF3 | 49 km | 6.5 mi | 0 |
| Apr 18, 1950 | EF3 | 50 km | 14.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (10,363 acres, 2008).
| Year | Name | Acres Burned | Distance |
| 2008 | UNNAMED | 10,363 | 80 km |
| 2013 | UNNAMED | 10,170 | 85 km |
| 2010 | DESOTO 0902 | 8,713 | 79 km |
| 2013 | UNNAMED | 7,660 | 95 km |
| 2005 | UNNAMED | 7,388 | 33 km |
| 2005 | UNNAMED | 7,334 | 23 km |
| 2010 | DESOTO 1057 | 7,148 | 93 km |
| 2015 | UNNAMED | 7,059 | 84 km |
| 2014 | UNNAMED | 6,802 | 80 km |
| 1993 | UNNAMED | 6,744 | 58 km |
| 2005 | UNNAMED | 6,712 | 89 km |
| 2005 | UNNAMED | 5,819 | 100 km |
| 2018 | UNNAMED | 5,803 | 87 km |
| 2010 | DESOTO 1064 | 5,695 | 96 km |
| 2008 | UNNAMED | 5,657 | 85 km |
| 2005 | UNNAMED | 5,062 | 100 km |
| 2014 | UNNAMED | 4,899 | 90 km |
| 2018 | UNNAMED | 4,862 | 82 km |
| 2021 | CHICKASAWHAY - CPT 398 399 | 4,697 | 92 km |
| 2005 | UNNAMED | 4,635 | 89 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 47°F (8°C) | 5.4 in | Coldest |
| February | 52°F (11°C) | 5.6 in | |
| March | 59°F (15°C) | 6.8 in | |
| April | 65°F (19°C) | 4.8 in | |
| May | 73°F (23°C) | 5.6 in | |
| June | 79°F (26°C) | 5.1 in | |
| July | 81°F (27°C) | 6.9 in | Warmest, Wettest |
| August | 81°F (27°C) | 5.7 in | |
| September | 77°F (25°C) | 5.1 in | |
| October | 67°F (19°C) | 3.2 in | Driest |
| November | 58°F (14°C) | 4.6 in | |
| December | 51°F (11°C) | 5.5 in |
Mount Vernon has a seasonal temperature swing of 34°F / from 47°F in January to 81°F in July. Total annual precipitation is 64.2 inches, with July being the wettest month (6.9") and October the driest (3.2").