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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 33°F in January while summers reach 78°F in July. The area gets 254 sunny days per year, above the national average. Annual precipitation totals 45.0 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 981 feet.
Temperature
33°F Jan (0°C)
78°F Jul (26°C)
| Annual Average | 56.9°F |
| 5% above US avg | |
| January Average | 33°F (0°C) |
| July Average | 78°F (26°C) |
| Sunny Days | 254 days/yr |
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
| AQI Median | 41.0 |
| Rating | Good |
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 | 33°F (0°C) | 2.6 in | Coldest, Driest |
| February | 38°F (4°C) | 2.9 in | |
| March | 48°F (9°C) | 4.5 in | |
| April | 57°F (14°C) | 4.3 in | |
| May | 65°F (19°C) | 4.4 in | |
| June | 73°F (23°C) | 3.7 in | |
| July | 78°F (26°C) | 3.2 in | Warmest |
| August | 77°F (25°C) | 3.4 in | |
| September | 70°F (21°C) | 3.9 in | |
| October | 59°F (15°C) | 3.4 in | |
| November | 47°F (8°C) | 4.7 in | Wettest |
| December | 37°F (3°C) | 4.1 in |
Koshkonong has a seasonal temperature swing of 46°F / from 33°F in January to 78°F in July. Total annual precipitation is 45.0 inches, with November being the wettest month (4.7") and January the driest (2.6").