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Weather & Climate in DeWitt, AR
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
DeWitt enjoys a temperate climate with an average annual temperature of 62°F (17°C). Winters average 41°F in January while summers reach 81°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 51.9 inches (wetter than the 38-inch national average). The area receives 1.2 inches of snow annually. Air quality is rated Good with a median AQI of 43. The city sits at an elevation of 166 feet.
Temperature
41°F Jan (5°C)
81°F Jul (27°C)
| Annual Average | 62.0°F |
| 15% above US avg | |
| January Average | 41°F (5°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 301 days/yr |
Geography
| Elevation | 166 ft (51 m) |
| Area | 3.0 sq mi (7.8 km²) |
| Population Density | 997/sq mi |
| Coordinates | 34.2874°N, 91.3383°W |
| Timezone | America/Chicago |
| County | Arkansas County County |
| Nearest Airport | Pinebluff Regional/Grider Field (PBF) 35 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 63.2 / 100 |
| Social Vulnerability | 85.9 / 100 |
| Community Resilience | 55.0 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively Low |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
200 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.7.
| Feb 28, 2011 | 4 km NE of Greenbrier, Arkansas | M4.7 | 143 km | 3 km |
| May 4, 2001 | 8 km NNW of Holland, Arkansas | M4.3 | 138 km | 8 km |
| Feb 18, 2011 | 4 km NNE of Greenbrier, Arkansas | M4.1 | 145 km | 6 km |
| Oct 29, 2012 | 8 km SW of Parkin, Arkansas | M3.9 | 121 km | 21 km |
| Apr 8, 2011 | 3 km NE of Greenbrier, Arkansas | M3.9 | 143 km | 6 km |
| Feb 18, 2011 | 3 km NNE of Greenbrier, Arkansas | M3.9 | 143 km | 5 km |
| Feb 17, 2011 | 4 km NNE of Greenbrier, Arkansas | M3.8 | 144 km | 6 km |
| Apr 7, 2011 | 2 km NE of Greenbrier, Arkansas | M3.7 | 143 km | 6 km |
| Jan 8, 2019 | 8 km WNW of Hollandale, Mississippi | M3.7 | 127 km | 16 km |
| Feb 28, 2011 | 4 km NNE of Greenbrier, Arkansas | M3.6 | 145 km | 4 km |
| Feb 20, 2011 | 3 km NNE of Greenbrier, Arkansas | M3.6 | 144 km | 5 km |
| Feb 16, 2011 | 4 km NNE of Greenbrier, Arkansas | M3.5 | 144 km | 7 km |
| Mar 3, 2011 | 0 km N of Greenbrier, Arkansas | M3.5 | 143 km | 7 km |
| Mar 9, 2011 | 1 km NW of Greenbrier, Arkansas | M3.5 | 144 km | 6 km |
| Feb 25, 2011 | 4 km NNE of Greenbrier, Arkansas | M3.5 | 145 km | 6 km |
| Apr 8, 2011 | 2 km NNE of Greenbrier, Arkansas | M3.5 | 144 km | 6 km |
| Apr 7, 2011 | 1 km E of Greenbrier, Arkansas | M3.4 | 141 km | 6 km |
| Feb 24, 2011 | 4 km SSW of Guy, Arkansas | M3.4 | 145 km | 4 km |
| Feb 28, 2011 | 4 km S of Guy, Arkansas | M3.4 | 144 km | 2 km |
| Feb 21, 2011 | 3 km N of Greenbrier, Arkansas | M3.4 | 145 km | 6 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
470 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 93 fatalities, 1,193 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Nov 24, 2001 | EF4 | 94 km | 30.3 mi | 0 |
| Mar 1, 1997 | EF4 | 100 km | 11.0 mi | 5 |
| Apr 17, 1978 | EF4 | 96 km | 3.6 mi | 0 |
| Apr 3, 1968 | EF4 | 62 km | 33.7 mi | 5 |
| Mar 21, 1952 | EF4 | 80 km | 13.1 mi | 29 |
| Mar 21, 1952 | EF4 | 83 km | 7.6 mi | 2 |
| Dec 23, 2015 | EF3 | 66 km | 61.6 mi | 2 |
| May 10, 2008 | EF3 | 32 km | 14.1 mi | 0 |
| Feb 24, 2007 | EF3 | 72 km | 29.1 mi | 0 |
| May 4, 2003 | EF3 | 93 km | 43.0 mi | 0 |
| Feb 24, 2001 | EF3 | 68 km | 42.0 mi | 0 |
| Jan 21, 1999 | EF3 | 44 km | 16.0 mi | 0 |
| Jan 21, 1999 | EF3 | 69 km | 39.0 mi | 0 |
| Nov 19, 1988 | EF3 | 86 km | 4.0 mi | 0 |
| May 14, 1983 | EF3 | 30 km | 0.8 mi | 0 |
| May 14, 1983 | EF3 | 67 km | 5.0 mi | 0 |
| Dec 24, 1982 | EF3 | 98 km | 15.0 mi | 1 |
| Jan 7, 1978 | EF3 | 83 km | 39.6 mi | 1 |
| Apr 24, 1976 | EF3 | 61 km | 24.6 mi | 0 |
| Mar 29, 1976 | EF3 | 100 km | 17.2 mi | 5 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
5 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (1,334 acres, 2006).
| Year | Name | Acres Burned | Distance |
| 2006 | UNNAMED | 1,334 | 73 km |
| 2010 | DREW | 1,283 | 98 km |
| 2007 | UNNAMED | 1,194 | 65 km |
| 2007 | UNNAMED | 627 | 66 km |
| 2018 | UNNAMED | 599 | 74 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 41°F (5°C) | 3.9 in | Coldest |
| February | 45°F (7°C) | 4.2 in | |
| March | 54°F (12°C) | 5.3 in | Wettest |
| April | 62°F (17°C) | 5.1 in | |
| May | 71°F (22°C) | 5.0 in | |
| June | 78°F (26°C) | 3.8 in | |
| July | 81°F (27°C) | 3.7 in | Warmest |
| August | 80°F (27°C) | 2.8 in | Driest |
| September | 74°F (24°C) | 3.3 in | |
| October | 64°F (18°C) | 3.7 in | |
| November | 53°F (11°C) | 5.0 in | |
| December | 44°F (7°C) | 5.3 in |
DeWitt has a seasonal temperature swing of 40°F / from 41°F in January to 81°F in July. Total annual precipitation is 51.0 inches, with March being the wettest month (5.3") and August the driest (2.8").