Weather & Climate in Winona, MO
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Winona experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 31°F in January while summers reach 76°F in July. Annual precipitation totals 50.5 inches (wetter than the 38-inch national average). The area receives 6.0 inches of snow annually. The city sits at an elevation of 942 feet.
Temperature
31°F Jan (-0°C)
76°F Jul (24°C)
| Annual Average | 54.0°F |
| 0% below US avg | |
| January Average | 31°F (-0°C) |
| July Average | 76°F (24°C) |
Geography
| Elevation | 942 ft (287 m) |
| Area | 3.8 sq mi (9.9 km²) |
| Population Density | 218/sq mi |
| Coordinates | 37.0098°N, 91.3235°W |
| Timezone | America/Chicago |
| Nearest Airport | Sharp County Regional (CKK) 53 miles away |
Precipitation & Snow
Air Quality
Earthquake History
92 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.5.
| May 4, 1991 | 2 km NNW of Risco, Missouri | M4.5 | 142 km | 11 km |
| Oct 21, 1999 | 9 km NW of Maynard, Arkansas | M3.9 | 66 km | 10 km |
| Aug 22, 2000 | 19 km WNW of Maynard, Arkansas | M3.9 | 63 km | 10 km |
| Jun 7, 2011 | 18 km NNW of Potosi, Missouri | M3.9 | 124 km | 21 km |
| Jul 7, 1991 | 11 km ENE of Brandsville, Missouri | M3.9 | 42 km | 8 km |
| Sep 12, 2019 | 13 km N of Big Flat, Arkansas | M3.7 | 138 km | 18 km |
| Aug 16, 2003 | 5 km W of Thomasville, Missouri | M3.7 | 34 km | 0 km |
| Sep 22, 2011 | 6 km E of Grandin, Missouri | M3.6 | 55 km | 11 km |
| Aug 20, 1994 | 4 km NE of Black Rock, Arkansas | M3.5 | 100 km | 10 km |
| Jun 15, 2004 | 3 km S of Canalou, Missouri | M3.5 | 149 km | 5 km |
| Jan 20, 2010 | 4 km WNW of Lynn, Arkansas | M3.3 | 110 km | 0 km |
| Feb 6, 1993 | 6 km NNW of Catron, Missouri | M3.3 | 147 km | 8 km |
| Aug 27, 1993 | 5 km SSE of Olympian Village, Missouri | M3.3 | 143 km | 22 km |
| Aug 21, 2022 | 4 km SSW of Imboden, Arkansas | M3.1 | 94 km | 16 km |
| Mar 12, 2002 | 6 km S of Marble Hill, Missouri | M3.1 | 124 km | 10 km |
| Jun 29, 1995 | 2 km WNW of Catron, Missouri | M3.1 | 148 km | 4 km |
| Oct 21, 1999 | 10 km NW of Maynard, Arkansas | M3.1 | 66 km | 9 km |
| May 15, 2014 | 4 km W of Malden, Missouri | M3.1 | 127 km | 6 km |
| Mar 18, 1990 | 9 km W of Alton, Missouri | M3.0 | 39 km | 1 km |
| Jun 27, 2025 | 12 km WSW of Grandin, Missouri | M2.9 | 43 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tornado History
362 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 40 fatalities, 651 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Apr 24, 2002 | EF4 | 27 km | 40.5 mi | 0 |
| Dec 24, 1982 | EF4 | 96 km | 63.0 mi | 0 |
| Apr 2, 1982 | EF4 | 94 km | 20.0 mi | 2 |
| Apr 22, 1981 | EF4 | 92 km | 63.0 mi | 1 |
| Dec 21, 1967 | EF4 | 77 km | 27.9 mi | 3 |
| May 21, 1957 | EF4 | 15 km | 9.1 mi | 7 |
| Mar 25, 1954 | EF4 | 87 km | 12.1 mi | 2 |
| May 26, 2024 | EF3 | 41 km | 12.4 mi | 0 |
| May 25, 2011 | EF3 | 47 km | 47.4 mi | 0 |
| May 8, 2009 | EF3 | 56 km | 2.2 mi | 0 |
| Mar 1, 2007 | EF3 | 87 km | 15.0 mi | 1 |
| Apr 2, 2006 | EF3 | 93 km | 77.0 mi | 2 |
| Oct 18, 1984 | EF3 | 32 km | 26.0 mi | 1 |
| Dec 2, 1982 | EF3 | 96 km | 9.0 mi | 0 |
| Apr 2, 1982 | EF3 | 96 km | 1.5 mi | 2 |
| Apr 11, 1979 | EF3 | 71 km | 35.4 mi | 0 |
| Feb 21, 1976 | EF3 | 82 km | 23.7 mi | 1 |
| May 7, 1973 | EF3 | 91 km | 36.0 mi | 0 |
| Jul 19, 1970 | EF3 | 35 km | 5.0 mi | 0 |
| Apr 30, 1970 | EF3 | 80 km | 8.2 mi | 0 |
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 | 23 km |
| 2011 | UNNAMED | 9,641 | 32 km |
| 2022 | CEDAR BLUFF | 9,617 | 25 km |
| 2020 | BIG BARREN CREEK | 8,150 | 20 km |
| 2022 | STEGALL MOUNTAIN | 6,979 | 14 km |
| 2010 | WYLIE KING 1 | 6,077 | 69 km |
| 2015 | 15 STEGAL MOUNTAIN | 5,112 | 14 km |
| 2021 | ROCK PILE | 5,067 | 65 km |
| 2011 | MINNINGHAW | 4,792 | 50 km |
| 2024 | BRIDGES RX | 4,781 | 36 km |
| 2009 | STEGAL MTN. COMPLEX | 4,717 | 14 km |
| 2017 | UNNAMED | 4,602 | 50 km |
| 2021 | MILLER KING | 4,130 | 65 km |
| 2021 | UNNAMED | 3,665 | 79 km |
| 1999 | STEGALL99 | 3,415 | 14 km |
| 2013 | UNNAMED | 3,313 | 61 km |
| 2005 | UNNAMED | 3,252 | 48 km |
| 2021 | VICTORY 1-7 | 3,237 | 71 km |
| 2024 | WOLF MOUNTAIN RX | 3,140 | 45 km |
| 1988 | HANES 1 | 3,139 | 17 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 31°F (-0°C) | 3.1 in | Coldest, Driest |
| February | 36°F (2°C) | 3.1 in | |
| March | 44°F (7°C) | 4.7 in | |
| April | 53°F (12°C) | 5.3 in | |
| May | 63°F (17°C) | 6.6 in | Wettest |
| June | 71°F (22°C) | 4.0 in | |
| July | 76°F (24°C) | 4.3 in | Warmest |
| August | 74°F (24°C) | 3.8 in | |
| September | 66°F (19°C) | 4.1 in | |
| October | 55°F (13°C) | 3.7 in | |
| November | 44°F (6°C) | 4.6 in | |
| December | 35°F (1°C) | 3.4 in |
Winona has a seasonal temperature swing of 45°F / from 31°F in January to 76°F in July. Total annual precipitation is 50.5 inches, with May being the wettest month (6.6") and January the driest (3.1").