Weather & Climate in Longtown, MO
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Longtown experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 31°F in January while summers reach 77°F in July. Annual precipitation totals 46.2 inches (wetter than the 38-inch national average). The area receives 4.7 inches of snow annually. The city sits at an elevation of 653 feet.
Temperature
31°F Jan (-0°C)
77°F Jul (25°C)
| Annual Average | 55.0°F |
| 2% above US avg | |
| January Average | 31°F (-0°C) |
| July Average | 77°F (25°C) |
Geography
| Elevation | 653 ft (199 m) |
| Area | 0.1 sq mi (0.3 km²) |
| Population Density | 762/sq mi |
| Coordinates | 37.6698°N, 89.7737°W |
| Timezone | America/Chicago |
| Nearest Airport | Cape Girardeau Regional (CGI) 34 miles away |
Precipitation & Snow
Air Quality
Earthquake History
229 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 | 59 km | 1 km |
| May 4, 1991 | 2 km NNW of Risco, Missouri | M4.5 | 122 km | 11 km |
| Feb 5, 1994 | 2 km WNW of Dongola, Illinois | M4.2 | 62 km | 16 km |
| Jun 6, 2003 | 1 km NE of Bardwell, Kentucky | M4.0 | 112 km | 3 km |
| Jun 7, 2011 | 18 km NNW of Potosi, Missouri | M3.9 | 109 km | 21 km |
| Feb 21, 2012 | 4 km SSE of Bertrand, Missouri | M3.9 | 94 km | 8 km |
| Mar 2, 2010 | 2 km ENE of East Prairie, Missouri | M3.7 | 105 km | 8 km |
| Jan 2, 2006 | 3 km NNE of Eldorado, Illinois | M3.6 | 121 km | 7 km |
| Sep 22, 2011 | 6 km E of Grandin, Missouri | M3.6 | 128 km | 11 km |
| Jun 20, 2005 | 4 km WSW of Blandville, Kentucky | M3.6 | 107 km | 19 km |
| Mar 15, 2017 | 9 km ESE of Wyatt, Missouri | M3.6 | 105 km | 8 km |
| Jul 16, 2004 | 6 km SE of Wyatt, Missouri | M3.5 | 104 km | 4 km |
| Jun 15, 2004 | 3 km S of Canalou, Missouri | M3.5 | 105 km | 5 km |
| May 1, 2016 | 5 km SE of New Grand Chain, Illinois | M3.5 | 86 km | 16 km |
| Sep 9, 2016 | 9 km NW of Tiptonville, Tennessee | M3.4 | 137 km | 10 km |
| Mar 2, 1990 | 9 km NW of Vernon, Illinois | M3.4 | 142 km | 0 km |
| Sep 26, 1994 | 4 km ENE of Blandville, Kentucky | M3.4 | 109 km | 13 km |
| Aug 27, 1993 | 5 km SSE of Olympian Village, Missouri | M3.3 | 75 km | 22 km |
| Feb 6, 1993 | 6 km NNW of Catron, Missouri | M3.3 | 112 km | 8 km |
| Jun 17, 2012 | 6 km NW of Tiptonville, Tennessee | M3.3 | 142 km | 8 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tornado History
595 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 72 fatalities, 1,015 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Dec 18, 1957 | EF5 | 65 km | 5.4 mi | 1 |
| Feb 28, 2017 | EF4 | 21 km | 53.5 mi | 1 |
| Nov 17, 2013 | EF4 | 88 km | 10.6 mi | 2 |
| Feb 29, 2012 | EF4 | 99 km | 26.1 mi | 8 |
| Sep 22, 2006 | EF4 | 5 km | 27.5 mi | 0 |
| May 6, 2003 | EF4 | 79 km | 33.0 mi | 2 |
| May 29, 1982 | EF4 | 58 km | 17.0 mi | 10 |
| Jun 22, 1969 | EF4 | 69 km | 15.1 mi | 4 |
| Dec 18, 1957 | EF4 | 26 km | 28.3 mi | 11 |
| Dec 18, 1957 | EF4 | 91 km | 16.8 mi | 1 |
| May 26, 2024 | EF3 | 68 km | 4.9 mi | 0 |
| May 26, 2024 | EF3 | 97 km | 19.6 mi | 0 |
| Oct 24, 2021 | EF3 | 56 km | 18.8 mi | 0 |
| Oct 24, 2021 | EF3 | 56 km | 16.7 mi | 0 |
| Nov 17, 2013 | EF3 | 72 km | 14.3 mi | 0 |
| Feb 29, 2012 | EF3 | 93 km | 20.0 mi | 1 |
| Mar 11, 2006 | EF3 | 26 km | 53.5 mi | 2 |
| Mar 11, 2006 | EF3 | 70 km | 5.1 mi | 0 |
| May 6, 2003 | EF3 | 34 km | 2.0 mi | 0 |
| Apr 28, 2002 | EF3 | 51 km | 19.3 mi | 1 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: RED SHALE UNIT RX (2,123 acres, 2021).
| Year | Name | Acres Burned | Distance |
| 2021 | RED SHALE UNIT RX | 2,123 | 61 km |
| 2014 | UNNAMED | 1,627 | 49 km |
| 2019 | ATWOOD RIDGE RX | 1,622 | 49 km |
| 2000 | UNNAMED | 1,552 | 75 km |
| 1999 | UNNAMED | 1,483 | 75 km |
| 2020 | UNNAMED | 1,334 | 63 km |
| 2000 | UNNAMED | 1,260 | 88 km |
| 2024 | RED SHALE RX | 1,259 | 61 km |
| 2017 | UNNAMED | 1,257 | 53 km |
| 2021 | OZARK HILL PRAIRIE RX | 1,235 | 53 km |
| 2019 | KINKAID RX | 1,215 | 33 km |
| 2000 | UNNAMED | 1,187 | 90 km |
| 2022 | JOHNSON MOUNTAIN | 1,155 | 99 km |
| 2022 | KINKAID STATE FISH AND WILDLIFE AREA RX | 1,115 | 33 km |
| 2024 | RENAULT | 1,085 | 99 km |
| 2021 | STATE OF ILLINOIS TRACT RX | 1,011 | 30 km |
| 2022 | BEAN RIDGE RX | 955 | 58 km |
| 2021 | MILL CREEK RX | 898 | 46 km |
| 2024 | HAMPTON NORTH RX | 807 | 61 km |
| 2005 | UNNAMED | 741 | 67 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 31°F (-0°C) | 2.7 in | Coldest, Driest |
| February | 35°F (2°C) | 2.8 in | |
| March | 44°F (7°C) | 3.8 in | |
| April | 55°F (13°C) | 5.5 in | |
| May | 65°F (18°C) | 5.7 in | Wettest |
| June | 74°F (23°C) | 4.3 in | |
| July | 77°F (25°C) | 3.9 in | Warmest |
| August | 75°F (24°C) | 3.3 in | |
| September | 68°F (20°C) | 3.3 in | |
| October | 56°F (14°C) | 3.4 in | |
| November | 44°F (7°C) | 4.2 in | |
| December | 35°F (2°C) | 3.2 in |
Longtown has a seasonal temperature swing of 46°F / from 31°F in January to 77°F in July. Total annual precipitation is 46.2 inches, with May being the wettest month (5.7") and January the driest (2.7").