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Weather & Climate in Des Arc, MO
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Des Arc enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 31°F in January while summers reach 78°F in July. The area gets 255 sunny days per year, above the national average. Annual precipitation totals 44.8 inches. The area receives 2.6 inches of snow annually. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 548 feet.
Temperature
31°F Jan (-1°C)
78°F Jul (26°C)
| Annual Average | 55.8°F |
| 3% above US avg | |
| January Average | 31°F (-1°C) |
| July Average | 78°F (26°C) |
| Sunny Days | 255 days/yr |
Geography
| Elevation | 548 ft (167 m) |
| Area | 0.2 sq mi (0.5 km²) |
| Population Density | 919/sq mi |
| Coordinates | 37.2826°N, 90.6373°W |
| Timezone | America/Chicago |
| Nearest Airport | Farmington Regional (FAM) 38 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Earthquake History
240 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.
| Sep 26, 1990 | 4 km SE of Chaffee, Missouri | M4.8 | 92 km | 1 km |
| May 4, 1991 | 2 km NNW of Risco, Missouri | M4.5 | 107 km | 11 km |
| Feb 5, 1994 | 2 km WNW of Dongola, Illinois | M4.2 | 129 km | 16 km |
| Oct 21, 1999 | 9 km NW of Maynard, Arkansas | M3.9 | 94 km | 10 km |
| Jul 7, 1991 | 11 km ENE of Brandsville, Missouri | M3.9 | 106 km | 8 km |
| Jun 7, 2011 | 18 km NNW of Potosi, Missouri | M3.9 | 91 km | 21 km |
| Aug 22, 2000 | 19 km WNW of Maynard, Arkansas | M3.9 | 99 km | 10 km |
| Feb 21, 2012 | 4 km SSE of Bertrand, Missouri | M3.9 | 117 km | 8 km |
| Mar 2, 2010 | 2 km ENE of East Prairie, Missouri | M3.7 | 126 km | 8 km |
| Aug 16, 2003 | 5 km W of Thomasville, Missouri | M3.7 | 101 km | 0 km |
| Sep 22, 2011 | 6 km E of Grandin, Missouri | M3.6 | 53 km | 11 km |
| Mar 15, 2017 | 9 km ESE of Wyatt, Missouri | M3.6 | 142 km | 8 km |
| Jun 15, 2004 | 3 km S of Canalou, Missouri | M3.5 | 105 km | 5 km |
| Jul 16, 2004 | 6 km SE of Wyatt, Missouri | M3.5 | 138 km | 4 km |
| Aug 20, 1994 | 4 km NE of Black Rock, Arkansas | M3.5 | 133 km | 10 km |
| May 1, 2016 | 5 km SE of New Grand Chain, Illinois | M3.5 | 146 km | 16 km |
| Sep 9, 2016 | 9 km NW of Tiptonville, Tennessee | M3.4 | 135 km | 10 km |
| Jun 17, 2012 | 6 km NW of Tiptonville, Tennessee | M3.3 | 138 km | 8 km |
| Feb 6, 1993 | 6 km NNW of Catron, Missouri | M3.3 | 106 km | 8 km |
| Aug 27, 1993 | 5 km SSE of Olympian Village, Missouri | M3.3 | 92 km | 22 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
422 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 50 fatalities, 545 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Feb 28, 2017 | EF4 | 74 km | 53.5 mi | 1 |
| Sep 22, 2006 | EF4 | 84 km | 27.5 mi | 0 |
| Apr 24, 2002 | EF4 | 46 km | 40.5 mi | 0 |
| Apr 22, 1981 | EF4 | 78 km | 63.0 mi | 1 |
| Jun 22, 1969 | EF4 | 85 km | 20.2 mi | 2 |
| Jun 22, 1969 | EF4 | 50 km | 15.1 mi | 4 |
| Dec 21, 1967 | EF4 | 62 km | 27.9 mi | 3 |
| May 21, 1957 | EF4 | 60 km | 9.1 mi | 7 |
| May 26, 2024 | EF3 | 97 km | 19.6 mi | 0 |
| Oct 24, 2021 | EF3 | 51 km | 16.7 mi | 0 |
| Oct 24, 2021 | EF3 | 36 km | 18.8 mi | 0 |
| Nov 17, 2013 | EF3 | 85 km | 14.3 mi | 0 |
| Feb 29, 2012 | EF3 | 58 km | 20.0 mi | 1 |
| May 25, 2011 | EF3 | 55 km | 47.4 mi | 0 |
| Mar 11, 2006 | EF3 | 82 km | 53.5 mi | 2 |
| Mar 11, 2006 | EF3 | 97 km | 5.1 mi | 0 |
| May 6, 2003 | EF3 | 86 km | 2.0 mi | 0 |
| Apr 27, 2002 | EF3 | 51 km | 4.0 mi | 1 |
| Apr 19, 1996 | EF3 | 84 km | 11.5 mi | 0 |
| Oct 18, 1984 | EF3 | 97 km | 26.0 mi | 1 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: HANDY (12,818 acres, 2012).
| Year | Name | Acres Burned | Distance |
| 2012 | HANDY | 12,818 | 65 km |
| 2011 | UNNAMED | 9,641 | 67 km |
| 2022 | CEDAR BLUFF | 9,617 | 66 km |
| 2020 | BIG BARREN CREEK | 8,150 | 63 km |
| 2022 | STEGALL MOUNTAIN | 6,979 | 54 km |
| 2010 | WYLIE KING 1 | 6,077 | 43 km |
| 2015 | 15 STEGAL MOUNTAIN | 5,112 | 55 km |
| 2011 | MINNINGHAW | 4,792 | 66 km |
| 2024 | BRIDGES RX | 4,781 | 66 km |
| 2009 | STEGAL MTN. COMPLEX | 4,717 | 54 km |
| 2017 | UNNAMED | 4,602 | 66 km |
| 2021 | MILLER KING | 4,130 | 41 km |
| 2022 | SMITH MILL HOLLOW | 3,978 | 82 km |
| 1999 | STEGALL99 | 3,415 | 54 km |
| 2013 | UNNAMED | 3,313 | 38 km |
| 2005 | UNNAMED | 3,252 | 65 km |
| 2021 | VICTORY 1-7 | 3,237 | 46 km |
| 2024 | WOLF MOUNTAIN RX | 3,140 | 82 km |
| 1988 | HANES 1 | 3,139 | 70 km |
| 2021 | COUNCIL BLUFF | 3,035 | 55 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 31°F (-1°C) | 2.6 in | Coldest, Driest |
| February | 36°F (2°C) | 2.9 in | |
| March | 46°F (8°C) | 4.7 in | Wettest |
| April | 56°F (13°C) | 4.1 in | |
| May | 64°F (18°C) | 4.5 in | |
| June | 73°F (23°C) | 3.4 in | |
| July | 78°F (26°C) | 3.9 in | Warmest |
| August | 76°F (25°C) | 3.9 in | |
| September | 70°F (21°C) | 3.7 in | |
| October | 58°F (14°C) | 2.8 in | |
| November | 46°F (8°C) | 4.2 in | |
| December | 36°F (2°C) | 4.1 in |
Des Arc has a seasonal temperature swing of 47°F / from 31°F in January to 78°F in July. Total annual precipitation is 44.8 inches, with March being the wettest month (4.7") and January the driest (2.6").