Weather & Climate in Koshkonong, MO
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Koshkonong enjoys a temperate climate with an average annual temperature of 57°F (14°C). Winters average 35°F in January while summers reach 78°F in July. Annual precipitation totals 48.8 inches (wetter than the 38-inch national average). The area receives 4.2 inches of snow annually. The city sits at an elevation of 981 feet.
Temperature
35°F Jan (2°C)
78°F Jul (26°C)
| Annual Average | 57.4°F |
| 6% above US avg | |
| January Average | 35°F (2°C) |
| July Average | 78°F (26°C) |
Geography
| Elevation | 981 ft (299 m) |
| Area | 0.2 sq mi (0.4 km²) |
| Population Density | 1,167/sq mi |
| Coordinates | 36.5959°N, 91.6457°W |
| Timezone | America/Chicago |
| Nearest Airport | Sharp County Regional (CKK) 23 miles away |
Precipitation & Snow
Air Quality
Earthquake History
115 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.9.
| Aug 22, 2000 | 19 km WNW of Maynard, Arkansas | M3.9 | 51 km | 10 km |
| Oct 21, 1999 | 9 km NW of Maynard, Arkansas | M3.9 | 62 km | 10 km |
| Jul 7, 1991 | 11 km ENE of Brandsville, Missouri | M3.9 | 12 km | 8 km |
| Jun 4, 2014 | 3 km ESE of Fairfield Bay, Arkansas | M3.8 | 125 km | 0 km |
| Sep 17, 1997 | 2 km E of Trumann, Arkansas | M3.8 | 147 km | 0 km |
| Aug 16, 2003 | 5 km W of Thomasville, Missouri | M3.7 | 22 km | 0 km |
| Sep 12, 2019 | 13 km N of Big Flat, Arkansas | M3.7 | 86 km | 18 km |
| Feb 23, 2013 | 7 km SW of Trumann, Arkansas | M3.7 | 145 km | 14 km |
| Jun 11, 2017 | 6 km NNE of Bergman, Arkansas | M3.6 | 123 km | 6 km |
| Sep 22, 2011 | 6 km E of Grandin, Missouri | M3.6 | 84 km | 11 km |
| Aug 20, 1994 | 4 km NE of Black Rock, Arkansas | M3.5 | 73 km | 10 km |
| Jun 27, 2000 | 15 km WSW of Marshall, Arkansas | M3.4 | 132 km | 0 km |
| Jan 20, 2010 | 4 km WNW of Lynn, Arkansas | M3.3 | 71 km | 0 km |
| Oct 5, 2011 | 5 km WSW of Quitman, Arkansas | M3.3 | 148 km | 5 km |
| Jul 17, 2013 | 7 km SW of Trumann, Arkansas | M3.2 | 145 km | 14 km |
| Aug 21, 2022 | 4 km SSW of Imboden, Arkansas | M3.1 | 62 km | 16 km |
| May 15, 2014 | 4 km W of Malden, Missouri | M3.1 | 145 km | 6 km |
| Oct 21, 1999 | 10 km NW of Maynard, Arkansas | M3.1 | 61 km | 9 km |
| Mar 18, 1990 | 9 km W of Alton, Missouri | M3.0 | 17 km | 1 km |
| Jun 27, 2025 | 12 km WSW of Grandin, Missouri | M2.9 | 66 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tornado History
360 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 32 fatalities, 609 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Apr 24, 2002 | EF4 | 72 km | 40.5 mi | 0 |
| Dec 24, 1982 | EF4 | 46 km | 63.0 mi | 0 |
| Apr 2, 1982 | EF4 | 51 km | 20.0 mi | 2 |
| May 21, 1957 | EF4 | 58 km | 9.1 mi | 7 |
| Mar 25, 1954 | EF4 | 96 km | 12.1 mi | 2 |
| May 26, 2024 | EF3 | 49 km | 12.4 mi | 0 |
| May 25, 2011 | EF3 | 75 km | 47.4 mi | 0 |
| May 8, 2009 | EF3 | 41 km | 2.2 mi | 0 |
| Mar 1, 2007 | EF3 | 45 km | 15.0 mi | 1 |
| Apr 2, 2006 | EF3 | 74 km | 77.0 mi | 2 |
| Mar 1, 1997 | EF3 | 100 km | 5.0 mi | 0 |
| Mar 5, 1996 | EF3 | 74 km | 46.5 mi | 0 |
| Oct 18, 1984 | EF3 | 22 km | 26.0 mi | 1 |
| Dec 2, 1982 | EF3 | 46 km | 9.0 mi | 0 |
| Apr 2, 1982 | EF3 | 46 km | 1.5 mi | 2 |
| Apr 11, 1979 | EF3 | 63 km | 35.4 mi | 0 |
| Apr 19, 1973 | EF3 | 94 km | 1.0 mi | 0 |
| Dec 14, 1971 | EF3 | 94 km | 23.6 mi | 0 |
| Jul 19, 1970 | EF3 | 25 km | 5.0 mi | 0 |
| Apr 30, 1970 | EF3 | 93 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 | 54 km |
| 2007 | DEAD HORSE | 10,389 | 90 km |
| 2004 | LOWER WILD | 10,034 | 90 km |
| 2011 | UNNAMED | 9,641 | 55 km |
| 2022 | CEDAR BLUFF | 9,617 | 53 km |
| 2013 | LOWER WILDERNESS RX | 8,699 | 91 km |
| 2020 | BIG BARREN CREEK | 8,150 | 55 km |
| 2022 | STEGALL MOUNTAIN | 6,979 | 68 km |
| 2021 | SYL BIRMINGHAM | 6,803 | 84 km |
| 2015 | 15 STEGAL MOUNTAIN | 5,112 | 67 km |
| 2021 | ROCK PILE | 5,067 | 50 km |
| 2018 | UNNAMED | 4,873 | 85 km |
| 2011 | MINNINGHAW | 4,792 | 100 km |
| 2024 | BRIDGES RX | 4,781 | 58 km |
| 2009 | STEGAL MTN. COMPLEX | 4,717 | 67 km |
| 2017 | UNNAMED | 4,602 | 99 km |
| 2019 | UNNAMED | 4,493 | 78 km |
| 2014 | UNNAMED | 4,337 | 79 km |
| 2016 | UNNAMED | 3,807 | 84 km |
| 2021 | UNNAMED | 3,665 | 100 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 35°F (2°C) | 3.6 in | Coldest |
| February | 39°F (4°C) | 3.5 in | |
| March | 48°F (9°C) | 4.6 in | |
| April | 57°F (14°C) | 5.2 in | |
| May | 66°F (19°C) | 5.3 in | Wettest |
| June | 74°F (24°C) | 3.3 in | Driest |
| July | 78°F (26°C) | 4.0 in | Warmest |
| August | 77°F (25°C) | 3.5 in | |
| September | 70°F (21°C) | 3.6 in | |
| October | 58°F (15°C) | 3.8 in | |
| November | 47°F (8°C) | 4.6 in | |
| December | 38°F (3°C) | 3.8 in |
Koshkonong has a seasonal temperature swing of 44°F / from 35°F in January to 78°F in July. Total annual precipitation is 48.8 inches, with May being the wettest month (5.3") and June the driest (3.3").