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Weather & Climate in Derma, MS
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Derma enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 43°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 57.9 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 276 feet.
Temperature
43°F Jan (6°C)
81°F Jul (27°C)
| Annual Average | 62.8°F |
| 16% above US avg | |
| January Average | 43°F (6°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 304 days/yr |
Geography
| Elevation | 276 ft (84 m) |
| Area | 1.8 sq mi (4.6 km²) |
| Population Density | 483/sq mi |
| Coordinates | 33.8589°N, 89.2878°W |
| Timezone | America/Chicago |
| County | Calhoun County County |
| Nearest Airport | Tupelo Regional (TUP) 41 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 27.7 / 100 |
| Social Vulnerability | 78.9 / 100 |
| Community Resilience | 20.5 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
19 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.5.
| Jun 30, 2015 | 12 km W of Union, Alabama | M3.5 | 150 km | 0 km |
| Sep 2, 1990 | 12 km NW of Fayette, Alabama | M3.2 | 126 km | 1 km |
| Jun 23, 1990 | 12 km E of Vernon, Alabama | M3.2 | 122 km | 1 km |
| Oct 26, 2002 | 3 km SE of Alligator, Mississippi | M3.1 | 132 km | 3 km |
| May 10, 2008 | 1 km SSE of Sherman, Mississippi | M3.1 | 69 km | 0 km |
| Aug 11, 1996 | 9 km WSW of Shaw, Mississippi | M3.1 | 150 km | 10 km |
| Jun 23, 1990 | 8 km N of Belk, Alabama | M3.1 | 125 km | 6 km |
| May 28, 2000 | 3 km NE of Fayette, Alabama | M3.0 | 138 km | 0 km |
| May 28, 2000 | 13 km S of Winfield, Alabama | M3.0 | 136 km | 5 km |
| Aug 11, 2002 | 8 km ESE of Darling, Mississippi | M2.8 | 98 km | 4 km |
| Feb 25, 1999 | 10 km NE of Oakland, Mississippi | M2.8 | 60 km | 5 km |
| Feb 19, 2015 | 14 km W of Union, Alabama | M2.8 | 150 km | 0 km |
| Feb 11, 1991 | 10 km SSW of Clarksdale, Mississippi | M2.7 | 124 km | 12 km |
| Feb 19, 2015 | 13 km W of Union, Alabama | M2.7 | 149 km | 0 km |
| Jan 22, 2015 | 12 km W of Union, Alabama | M2.6 | 150 km | 0 km |
| Mar 10, 2004 | 15 km W of Union, Alabama | M2.6 | 149 km | 0 km |
| Feb 10, 2002 | 5 km NNE of Glen Allen, Alabama | M2.6 | 145 km | 4 km |
| Sep 5, 2016 | 16 km W of Union, Alabama | M2.6 | 148 km | 0 km |
| Jun 26, 1994 | 11 km NE of Panola, Alabama | M2.5 | 138 km | 9 km |
| Oct 18, 2003 | 15 km SSE of Fayette, Alabama | M2.5 | 144 km | 15 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
2 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 1.
| Year | Name | Category | Max Wind | Closest |
| 2020 | Zeta | Category 1 | — | 276 km |
| 2005 | Katrina | Category 1 | — | 218 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
480 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 103 fatalities, 1,049 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Apr 27, 2011 | EF5 | 81 km | 37.1 mi | 23 |
| Dec 23, 2015 | EF4 | 91 km | 75.1 mi | 9 |
| Jan 19, 1988 | EF4 | 83 km | 13.0 mi | 0 |
| Feb 23, 1977 | EF4 | 93 km | 15.0 mi | 2 |
| Apr 19, 1970 | EF4 | 99 km | 47.6 mi | 4 |
| Apr 29, 1963 | EF4 | 60 km | 4.7 mi | 3 |
| Mar 11, 1963 | EF4 | 84 km | 45.2 mi | 2 |
| Mar 24, 2023 | EF3 | 93 km | 29.4 mi | 3 |
| Mar 24, 2023 | EF3 | 49 km | 36.6 mi | 2 |
| Feb 23, 2019 | EF3 | 89 km | 9.7 mi | 1 |
| Apr 28, 2014 | EF3 | 59 km | 31.0 mi | 0 |
| Apr 27, 2011 | EF3 | 17 km | 51.5 mi | 4 |
| Apr 27, 2011 | EF3 | 47 km | 70.4 mi | 0 |
| Apr 27, 2011 | EF3 | 47 km | 13.6 mi | 0 |
| May 8, 2008 | EF3 | 64 km | 7.6 mi | 0 |
| Feb 5, 2008 | EF3 | 65 km | 7.2 mi | 0 |
| Jan 10, 2008 | EF3 | 88 km | 13.3 mi | 0 |
| Jan 10, 2008 | EF3 | 84 km | 23.6 mi | 0 |
| Nov 10, 2002 | EF3 | 82 km | 29.2 mi | 0 |
| Feb 24, 2001 | EF3 | 20 km | 52.0 mi | 6 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: COMP 109 (3,663 acres, 2010).
| Year | Name | Acres Burned | Distance |
| 2010 | COMP 109 | 3,663 | 57 km |
| 2016 | MSNXR FY16 RX 1703B | 3,633 | 82 km |
| 1988 | UNNAMED | 3,616 | 78 km |
| 1990 | UNNAMED | 3,605 | 83 km |
| 2002 | UNNAMED | 3,593 | 78 km |
| 2014 | C-55 CHILLI LAKE | 3,555 | 92 km |
| 1987 | 10 NOVEMBER | 3,301 | 82 km |
| 2017 | UNNAMED | 3,152 | 98 km |
| 2014 | C-39 EAST CHEWALLA | 3,107 | 98 km |
| 2017 | UNNAMED | 3,053 | 77 km |
| 2017 | UNNAMED | 3,031 | 92 km |
| 2022 | HOLLY SPRINGS BB 119/90/88 | 2,955 | 70 km |
| 2014 | UNNAMED | 2,887 | 69 km |
| 2013 | UNNAMED | 2,848 | 94 km |
| 2020 | TOMBIGBEE COMP 54/55/56 | 2,846 | 76 km |
| 2006 | WITCHDCE W | 2,846 | 33 km |
| 2014 | C-84 BAGLEY BOTTOMS | 2,766 | 70 km |
| 2022 | TOMBIGBEE BB 54 55 56 | 2,736 | 77 km |
| 2016 | UNNAMED | 2,645 | 56 km |
| 2013 | MIDWAY CEM PRESCRIBED BURN | 2,513 | 71 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 43°F (6°C) | 5.2 in | Coldest |
| February | 45°F (7°C) | 4.8 in | |
| March | 54°F (12°C) | 6.0 in | Wettest |
| April | 61°F (16°C) | 5.6 in | |
| May | 69°F (21°C) | 5.0 in | |
| June | 76°F (25°C) | 4.0 in | |
| July | 81°F (27°C) | 4.3 in | Warmest |
| August | 79°F (26°C) | 3.0 in | Driest |
| September | 73°F (23°C) | 3.7 in | |
| October | 62°F (17°C) | 3.2 in | |
| November | 52°F (11°C) | 4.9 in | |
| December | 44°F (7°C) | 5.9 in |
Derma has a seasonal temperature swing of 38°F / from 43°F in January to 81°F in July. Total annual precipitation is 55.8 inches, with March being the wettest month (6.0") and August the driest (3.0").