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Weather & Climate in Bismarck, MO
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Bismarck experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 30°F in January while summers reach 77°F in July. The area gets 258 sunny days per year, above the national average. Annual precipitation totals 42.8 inches. The area receives 8.2 inches of snow annually. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 1,024 feet.
Temperature
30°F Jan (-1°C)
77°F Jul (25°C)
| Annual Average | 54.6°F |
| 1% above US avg | |
| January Average | 30°F (-1°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 258 days/yr |
Geography
| Elevation | 1,024 ft (312 m) |
| Area | 1.0 sq mi (2.6 km²) |
| Population Density | 1,560/sq mi |
| Coordinates | 37.7692°N, 90.6248°W |
| Timezone | America/Chicago |
| Nearest Airport | Farmington Regional (FAM) 12 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Earthquake History
90 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 | 113 km | 1 km |
| Feb 5, 1994 | 2 km WNW of Dongola, Illinois | M4.2 | 134 km | 16 km |
| Jul 7, 1991 | 11 km ENE of Brandsville, Missouri | M3.9 | 147 km | 8 km |
| Feb 21, 2012 | 4 km SSE of Bertrand, Missouri | M3.9 | 146 km | 8 km |
| Jun 7, 2011 | 18 km NNW of Potosi, Missouri | M3.9 | 42 km | 21 km |
| Aug 22, 2000 | 19 km WNW of Maynard, Arkansas | M3.9 | 150 km | 10 km |
| Oct 21, 1999 | 9 km NW of Maynard, Arkansas | M3.9 | 146 km | 10 km |
| Aug 16, 2003 | 5 km W of Thomasville, Missouri | M3.7 | 139 km | 0 km |
| Sep 22, 2011 | 6 km E of Grandin, Missouri | M3.6 | 106 km | 11 km |
| Jun 15, 2004 | 3 km S of Canalou, Missouri | M3.5 | 143 km | 5 km |
| Feb 6, 1993 | 6 km NNW of Catron, Missouri | M3.3 | 146 km | 8 km |
| Aug 27, 1993 | 5 km SSE of Olympian Village, Missouri | M3.3 | 39 km | 22 km |
| Dec 27, 1992 | 2 km E of Pocahontas, Missouri | M3.2 | 94 km | 10 km |
| Apr 6, 1994 | 2 km NE of Tamaroa, Illinois | M3.2 | 131 km | 15 km |
| Oct 21, 1999 | 10 km NW of Maynard, Arkansas | M3.1 | 146 km | 9 km |
| May 15, 2014 | 4 km W of Malden, Missouri | M3.1 | 145 km | 6 km |
| Mar 12, 2002 | 6 km S of Marble Hill, Missouri | M3.1 | 82 km | 10 km |
| Mar 1, 2006 | 2 km N of Buncombe, Illinois | M3.0 | 148 km | 6 km |
| Feb 28, 1994 | 5 km NW of Harrison, Illinois | M3.0 | 110 km | 5 km |
| Jun 27, 2005 | 6 km E of Grand Tower, Illinois | M3.0 | 107 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tornado History
478 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 71 fatalities, 865 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Feb 28, 2017 | EF4 | 55 km | 53.5 mi | 1 |
| Sep 22, 2006 | EF4 | 71 km | 27.5 mi | 0 |
| Apr 24, 2002 | EF4 | 92 km | 40.5 mi | 0 |
| Jun 22, 1969 | EF4 | 46 km | 20.2 mi | 2 |
| Jun 22, 1969 | EF4 | 8 km | 15.1 mi | 4 |
| Dec 21, 1967 | EF4 | 46 km | 27.9 mi | 3 |
| Feb 10, 1959 | EF4 | 85 km | 23.9 mi | 21 |
| Feb 24, 1956 | EF4 | 80 km | 77.6 mi | 6 |
| Dec 10, 2021 | EF3 | 95 km | 24.8 mi | 1 |
| Oct 24, 2021 | EF3 | 20 km | 16.7 mi | 0 |
| Oct 24, 2021 | EF3 | 33 km | 18.8 mi | 0 |
| Dec 31, 2010 | EF3 | 82 km | 6.7 mi | 1 |
| Mar 11, 2006 | EF3 | 55 km | 53.5 mi | 2 |
| Mar 11, 2006 | EF3 | 47 km | 5.1 mi | 0 |
| May 6, 2003 | EF3 | 95 km | 2.0 mi | 0 |
| Apr 27, 2002 | EF3 | 78 km | 4.0 mi | 1 |
| Jun 1, 1999 | EF3 | 96 km | 7.0 mi | 0 |
| Apr 19, 1996 | EF3 | 67 km | 11.5 mi | 0 |
| May 29, 1982 | EF3 | 89 km | 10.0 mi | 0 |
| Apr 22, 1981 | EF3 | 47 km | 7.1 mi | 1 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: STEGALL MOUNTAIN (6,979 acres, 2022).
| Year | Name | Acres Burned | Distance |
| 2022 | STEGALL MOUNTAIN | 6,979 | 91 km |
| 2010 | WYLIE KING 1 | 6,077 | 97 km |
| 2015 | 15 STEGAL MOUNTAIN | 5,112 | 92 km |
| 2011 | MINNINGHAW | 4,792 | 72 km |
| 2009 | STEGAL MTN. COMPLEX | 4,717 | 92 km |
| 2017 | UNNAMED | 4,602 | 73 km |
| 2021 | MILLER KING | 4,130 | 95 km |
| 2022 | SMITH MILL HOLLOW | 3,978 | 39 km |
| 1999 | STEGALL99 | 3,415 | 92 km |
| 2013 | UNNAMED | 3,313 | 93 km |
| 2005 | UNNAMED | 3,252 | 74 km |
| 2021 | VICTORY 1-7 | 3,237 | 100 km |
| 2021 | COUNCIL BLUFF | 3,035 | 28 km |
| 2022 | LITTLE CREEK | 3,004 | 74 km |
| 2013 | UNNAMED | 2,963 | 86 km |
| 2021 | HODGE HOLLOW | 2,922 | 74 km |
| 2024 | COUNCIL BLUFF WEST RX | 2,846 | 28 km |
| 2004 | 04 RX CAMPBELL/BEAVER | 2,772 | 89 km |
| 2005 | UNNAMED | 2,751 | 30 km |
| 2005 | MCKENZIE HILL | 2,722 | 64 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 30°F (-1°C) | 2.2 in | Coldest, Driest |
| February | 35°F (2°C) | 2.4 in | |
| March | 45°F (7°C) | 4.1 in | |
| April | 55°F (13°C) | 4.2 in | |
| May | 63°F (17°C) | 4.5 in | Wettest |
| June | 72°F (22°C) | 3.5 in | |
| July | 77°F (25°C) | 3.6 in | Warmest |
| August | 75°F (24°C) | 3.9 in | |
| September | 68°F (20°C) | 3.6 in | |
| October | 57°F (14°C) | 3.0 in | |
| November | 45°F (7°C) | 4.3 in | |
| December | 35°F (2°C) | 3.5 in |
Bismarck has a seasonal temperature swing of 47°F / from 30°F in January to 77°F in July. Total annual precipitation is 42.7 inches, with May being the wettest month (4.5") and January the driest (2.2").