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Weather & Climate in McLain, MS
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
McLain enjoys a temperate climate with an average annual temperature of 66°F (19°C). Winters average 49°F in January while summers reach 82°F in July. The area gets 313 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 63.9 inches (wetter than the 38-inch national average). Air quality is rated Good with a median AQI of 43. The city sits at an elevation of 75 feet.
Temperature
49°F Jan (9°C)
82°F Jul (28°C)
| Annual Average | 66.3°F |
| 23% above US avg | |
| January Average | 49°F (9°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 313 days/yr |
Geography
| Elevation | 75 ft (23 m) |
| Area | 3.5 sq mi (8.9 km²) |
| Population Density | 116/sq mi |
| Coordinates | 31.0956°N, 88.8224°W |
| Timezone | America/Chicago |
| County | Perry County County |
| Nearest Airport | Hattiesburg/Laurel Regional (PIB) 40 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 19.5 / 100 |
| Social Vulnerability | 64.7 / 100 |
| Community Resilience | 30.4 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Relatively Low |
| Ice Storm | Very Low |
| Drought | Relatively Low |
| Cold Wave | Very Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
16 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 | 141 km | 10 km |
| Jul 16, 1993 | 2 km SSW of Silas, Alabama | M3.7 | 86 km | 5 km |
| Oct 26, 1997 | 11 km NNW of Flomaton, Alabama | M3.7 | 145 km | 10 km |
| Mar 25, 1996 | 11 km NNE of Quitman, Mississippi | M3.5 | 116 km | 5 km |
| Feb 18, 2011 | 22 km SSE of Dauphin Island, Alabama | M3.5 | 138 km | 5 km |
| Mar 22, 2005 | 9 km NNE of Coffeeville, Alabama | M3.3 | 110 km | 5 km |
| Sep 30, 2003 | 10 km NNW of Atmore, Alabama | M3.3 | 124 km | 5 km |
| May 16, 2008 | 10 km W of Coffeeville, Alabama | M3.1 | 96 km | 5 km |
| May 4, 1997 | 9 km ESE of Atmore, Alabama | M3.1 | 136 km | 5 km |
| Mar 11, 2019 | 4 km N of Flomaton, Alabama | M3.1 | 148 km | 5 km |
| Mar 15, 2025 | 5 km NNE of Magee, Mississippi | M3.0 | 124 km | 10 km |
| Oct 28, 1997 | 11 km NNW of Flomaton, Alabama | M3.0 | 145 km | 10 km |
| Sep 25, 2003 | 14 km N of Atmore, Alabama | M2.9 | 124 km | 0 km |
| Nov 10, 2012 | 16 km S of Dauphin Island, Alabama | M2.6 | 130 km | 11 km |
| Apr 12, 2019 | 13 km NW of Flomaton, Alabama | M2.6 | 141 km | 5 km |
| Sep 5, 2000 | 2 km NNE of Sweet Water, Alabama | M2.5 | 146 km | 0 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
21 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Francine | Category 2 | 104 mph | 260 km |
| 2021 | Ida | Category 4 | 150 mph | 197 km |
| 2020 | Zeta | Category 3 | 115 mph | 35 km |
| 2020 | Sally | Category 2 | 109 mph | 134 km |
| 2017 | Nate | Category 1 | 86 mph | 79 km |
| 2012 | Isaac | Category 1 | 81 mph | 248 km |
| 2009 | Ida | Category 1 | 86 mph | 289 km |
| 2008 | Gustav | Category 2 | 109 mph | 278 km |
| 2005 | Katrina | Category 4 | 127 mph | 74 km |
| 2005 | Dennis | Category 4 | 138 mph | 149 km |
| 2005 | Cindy | Category 1 | 75 mph | 244 km |
| 2004 | Ivan | Category 4 | 127 mph | 107 km |
| 1998 | Georges | Category 2 | 109 mph | 56 km |
| 1998 | Earl | Category 2 | 98 mph | 271 km |
| 1997 | Danny | Category 1 | 81 mph | 117 km |
| 1995 | Opal | Category 3 | 127 mph | 187 km |
| 1995 | Erin | Category 2 | 98 mph | 138 km |
| 1992 | Andrew | Category 4 | 144 mph | 283 km |
| 1988 | Florence | Category 1 | 81 mph | 207 km |
| 1985 | Elena | Category 3 | 127 mph | 85 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
725 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 43 fatalities, 1,184 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Apr 12, 2020 | EF4 | 98 km | 67.4 mi | 7 |
| Feb 10, 2013 | EF4 | 65 km | 21.7 mi | 0 |
| Feb 28, 1987 | EF4 | 61 km | 35.0 mi | 6 |
| Nov 30, 2022 | EF3 | 40 km | 19.0 mi | 0 |
| Dec 16, 2019 | EF3 | 72 km | 61.2 mi | 0 |
| Dec 16, 2019 | EF3 | 79 km | 5.8 mi | 0 |
| Jan 21, 2017 | EF3 | 63 km | 31.1 mi | 4 |
| Dec 23, 2014 | EF3 | 97 km | 12.5 mi | 3 |
| Apr 28, 2014 | EF3 | 76 km | 10.5 mi | 0 |
| Dec 25, 2012 | EF3 | 96 km | 60.3 mi | 0 |
| Apr 15, 2011 | EF3 | 19 km | 18.3 mi | 4 |
| Nov 15, 2006 | EF3 | 82 km | 13.0 mi | 0 |
| Nov 15, 2006 | EF3 | 63 km | 15.9 mi | 0 |
| Apr 14, 1999 | EF3 | 91 km | 25.5 mi | 1 |
| Nov 21, 1997 | EF3 | 78 km | 1.0 mi | 0 |
| Nov 4, 1988 | EF3 | 62 km | 8.0 mi | 0 |
| Mar 24, 1984 | EF3 | 97 km | 4.0 mi | 0 |
| Mar 20, 1983 | EF3 | 25 km | 1.0 mi | 0 |
| May 7, 1982 | EF3 | 95 km | 6.0 mi | 0 |
| May 7, 1982 | EF3 | 46 km | 13.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: WHITE DOG (12,306 acres, 2005).
| Year | Name | Acres Burned | Distance |
| 2005 | WHITE DOG | 12,306 | 29 km |
| 2008 | UNNAMED | 10,363 | 16 km |
| 2013 | UNNAMED | 10,170 | 12 km |
| 2014 | UNNAMED | 9,932 | 28 km |
| 2010 | DESOTO 0902 | 8,713 | 11 km |
| 2013 | UNNAMED | 7,660 | 50 km |
| 2010 | DESOTO 1057 | 7,148 | 47 km |
| 2015 | UNNAMED | 7,059 | 12 km |
| 2014 | UNNAMED | 6,802 | 11 km |
| 1993 | UNNAMED | 6,744 | 65 km |
| 2005 | UNNAMED | 6,712 | 13 km |
| 2000 | COW PEN | 6,502 | 31 km |
| 2010 | CRIPPLE CHINOOK | 6,035 | 26 km |
| 2005 | UNNAMED | 5,819 | 24 km |
| 2018 | UNNAMED | 5,803 | 12 km |
| 2010 | DESOTO 1064 | 5,695 | 54 km |
| 2008 | UNNAMED | 5,657 | 8 km |
| 1987 | MACHINE GUN | 5,601 | 28 km |
| 1990 | PIERCES CREEK | 5,544 | 27 km |
| 2020 | 369 D | 5,362 | 28 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 49°F (9°C) | 5.4 in | Coldest |
| February | 52°F (11°C) | 5.7 in | |
| March | 59°F (15°C) | 6.6 in | Wettest |
| April | 65°F (18°C) | 4.9 in | |
| May | 72°F (22°C) | 5.2 in | |
| June | 78°F (26°C) | 4.6 in | |
| July | 82°F (28°C) | 6.6 in | Warmest |
| August | 80°F (27°C) | 5.6 in | |
| September | 76°F (25°C) | 5.0 in | |
| October | 66°F (19°C) | 3.2 in | Driest |
| November | 57°F (14°C) | 4.5 in | |
| December | 51°F (10°C) | 5.6 in |
McLain has a seasonal temperature swing of 34°F / from 49°F in January to 82°F in July. Total annual precipitation is 62.9 inches, with March being the wettest month (6.6") and October the driest (3.2").