Weather & Climate in Sundown, MO
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sundown enjoys a temperate climate with an average annual temperature of 59°F (15°C). Winters average 37°F in January while summers reach 79°F in July. Annual precipitation totals 41.2 inches. The area receives 8.2 inches of snow annually. The city sits at an elevation of 761 feet.
Temperature
37°F Jan (3°C)
79°F Jul (26°C)
| Annual Average | 58.8°F |
| 9% above US avg | |
| January Average | 37°F (3°C) |
| July Average | 79°F (26°C) |
Geography
| Elevation | 761 ft (232 m) |
| Area | 1.5 sq mi (3.8 km²) |
| Population Density | 130/sq mi |
| Coordinates | 36.5665°N, 92.6368°W |
| Timezone | America/Chicago |
| Nearest Airport | Marion County Regional (FLP) 19 miles away |
Precipitation & Snow
Air Quality
Earthquake History
225 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 | 147 km | 3 km |
| Feb 18, 2011 | 4 km NNE of Greenbrier, Arkansas | M4.1 | 146 km | 6 km |
| Feb 18, 2011 | 3 km NNE of Greenbrier, Arkansas | M3.9 | 148 km | 5 km |
| Jul 7, 1991 | 11 km ENE of Brandsville, Missouri | M3.9 | 96 km | 8 km |
| Oct 21, 1999 | 9 km NW of Maynard, Arkansas | M3.9 | 149 km | 10 km |
| Apr 8, 2011 | 3 km NE of Greenbrier, Arkansas | M3.9 | 147 km | 6 km |
| Aug 22, 2000 | 19 km WNW of Maynard, Arkansas | M3.9 | 138 km | 10 km |
| Jun 4, 2014 | 3 km ESE of Fairfield Bay, Arkansas | M3.8 | 115 km | 0 km |
| Feb 17, 2011 | 4 km NNE of Greenbrier, Arkansas | M3.8 | 146 km | 6 km |
| Apr 7, 2011 | 2 km NE of Greenbrier, Arkansas | M3.7 | 148 km | 6 km |
| Sep 12, 2019 | 13 km N of Big Flat, Arkansas | M3.7 | 53 km | 18 km |
| Aug 16, 2003 | 5 km W of Thomasville, Missouri | M3.7 | 96 km | 0 km |
| Jun 11, 2017 | 6 km NNE of Bergman, Arkansas | M3.6 | 38 km | 6 km |
| Feb 28, 2011 | 4 km NNE of Greenbrier, Arkansas | M3.6 | 146 km | 4 km |
| Feb 20, 2011 | 3 km NNE of Greenbrier, Arkansas | M3.6 | 147 km | 5 km |
| Feb 25, 2011 | 4 km NNE of Greenbrier, Arkansas | M3.5 | 145 km | 6 km |
| Feb 16, 2011 | 4 km NNE of Greenbrier, Arkansas | M3.5 | 146 km | 7 km |
| Apr 8, 2011 | 2 km NNE of Greenbrier, Arkansas | M3.5 | 147 km | 6 km |
| Nov 15, 1990 | 16 km NNW of Hector, Arkansas | M3.5 | 113 km | 29 km |
| Mar 9, 2011 | 1 km NW of Greenbrier, Arkansas | M3.5 | 149 km | 6 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tornado History
431 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 39 fatalities, 605 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Apr 14, 1996 | EF4 | 87 km | 44.0 mi | 7 |
| Nov 29, 1991 | EF4 | 84 km | 10.0 mi | 2 |
| Apr 2, 1982 | EF4 | 37 km | 20.0 mi | 2 |
| Sep 26, 1959 | EF4 | 87 km | 7.8 mi | 0 |
| Mar 25, 1954 | EF4 | 91 km | 12.1 mi | 2 |
| May 26, 2024 | EF3 | 91 km | 12.4 mi | 0 |
| May 26, 2024 | EF3 | 42 km | 34.6 mi | 1 |
| May 26, 2024 | EF3 | 57 km | 21.6 mi | 4 |
| May 8, 2009 | EF3 | 72 km | 2.2 mi | 0 |
| Jan 7, 2008 | EF3 | 92 km | 50.4 mi | 3 |
| Mar 1, 2007 | EF3 | 44 km | 15.0 mi | 1 |
| Mar 12, 2006 | EF3 | 79 km | 32.0 mi | 0 |
| Mar 5, 1996 | EF3 | 85 km | 46.5 mi | 0 |
| Nov 18, 1985 | EF3 | 43 km | 34.0 mi | 3 |
| Apr 2, 1982 | EF3 | 49 km | 1.5 mi | 2 |
| Apr 2, 1982 | EF3 | 43 km | 1.0 mi | 0 |
| Apr 11, 1979 | EF3 | 68 km | 35.4 mi | 0 |
| Apr 20, 1973 | EF3 | 65 km | 7.8 mi | 1 |
| Apr 7, 1972 | EF3 | 92 km | 2.0 mi | 0 |
| Dec 14, 1971 | EF3 | 35 km | 23.6 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: DEAD HORSE (10,389 acres, 2007).
| Year | Name | Acres Burned | Distance |
| 2007 | DEAD HORSE | 10,389 | 51 km |
| 2004 | LOWER WILD | 10,034 | 51 km |
| 2018 | UNNAMED | 9,226 | 95 km |
| 2013 | LOWER WILDERNESS RX | 8,699 | 51 km |
| 2003 | UNNAMED | 8,286 | 98 km |
| 2007 | UNNAMED | 6,931 | 23 km |
| 2021 | SYL BIRMINGHAM | 6,803 | 61 km |
| 2011 | UNNAMED | 6,686 | 19 km |
| 2017 | UNNAMED | 6,457 | 98 km |
| 2010 | BRUSHY/CLAYTON | 6,401 | 23 km |
| 2020 | BIG CREEK | 6,399 | 19 km |
| 2001 | UNNAMED | 6,354 | 90 km |
| 2016 | UNNAMED | 5,118 | 98 km |
| 2021 | ROCK PILE | 5,067 | 66 km |
| 2013 | UNNAMED | 4,912 | 98 km |
| 2018 | UNNAMED | 4,873 | 61 km |
| 2019 | UNNAMED | 4,493 | 74 km |
| 2014 | UNNAMED | 4,337 | 72 km |
| 2020 | CAVE CREEK | 4,263 | 73 km |
| 2016 | BIG CREEK | 4,031 | 19 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 37°F (3°C) | 2.9 in | Coldest |
| February | 41°F (5°C) | 2.4 in | Driest |
| March | 50°F (10°C) | 3.6 in | |
| April | 59°F (15°C) | 4.7 in | Wettest |
| May | 67°F (19°C) | 4.5 in | |
| June | 75°F (24°C) | 3.5 in | |
| July | 79°F (26°C) | 3.6 in | Warmest |
| August | 78°F (26°C) | 3.4 in | |
| September | 71°F (22°C) | 2.7 in | |
| October | 60°F (15°C) | 3.4 in | |
| November | 49°F (9°C) | 3.7 in | |
| December | 40°F (4°C) | 2.9 in |
Sundown has a seasonal temperature swing of 42°F / from 37°F in January to 79°F in July. Total annual precipitation is 41.2 inches, with April being the wettest month (4.7") and February the driest (2.4").