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Weather & Climate in Wheaton, MO
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Wheaton enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 32°F in January while summers reach 78°F in July. The area gets 256 sunny days per year, above the national average. Annual precipitation totals 44.3 inches. The area receives 1.9 inches of snow annually. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 1,388 feet.
Temperature
32°F Jan (-0°C)
78°F Jul (25°C)
| Annual Average | 56.1°F |
| 4% above US avg | |
| January Average | 32°F (-0°C) |
| July Average | 78°F (25°C) |
| Sunny Days | 256 days/yr |
Geography
| Elevation | 1,388 ft (423 m) |
| Area | 0.5 sq mi (1.3 km²) |
| Population Density | 714/sq mi |
| Coordinates | 36.7628°N, 94.0560°W |
| Timezone | America/Chicago |
| Nearest Airport | Northwest Arkansas Ntl (XNA) 36 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Earthquake History
12 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.6.
| Jun 11, 2017 | 6 km NNE of Bergman, Arkansas | M3.6 | 105 km | 6 km |
| Mar 30, 2001 | 1 km SW of Hermitage, Missouri | M3.1 | 145 km | 5 km |
| Jun 16, 2017 | 6 km N of Bergman, Arkansas | M2.9 | 104 km | 6 km |
| Mar 23, 2024 | 9 km SE of Foyil, Oklahoma | M2.8 | 133 km | 5 km |
| Apr 3, 2016 | Arkansas-Oklahoma border region | M2.7 | 146 km | 5 km |
| Jul 3, 2014 | 6 km S of Yellville, Arkansas | M2.7 | 140 km | 8 km |
| May 21, 2010 | 2 km SW of Centerton, Arkansas | M2.6 | 52 km | 1 km |
| Jun 21, 2017 | 6 km N of Bergman, Arkansas | M2.5 | 104 km | 5 km |
| May 13, 2015 | 8 km E of Lead Hill, Arkansas | M2.5 | 117 km | 0 km |
| Jan 4, 2024 | 13 km E of South Lead Hill, Arkansas | M2.5 | 122 km | 4 km |
| Apr 29, 2010 | 3 km SW of Centerton, Arkansas | M2.5 | 53 km | 0 km |
| Aug 11, 2011 | 11 km WSW of Jasper, Arkansas | M2.5 | 110 km | 4 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
638 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 226 fatalities, 2,316 injuries.
| Date | Rating | Distance | Path | Fatalities |
| May 22, 2011 | EF5 | 58 km | 21.6 mi | 158 |
| May 10, 2008 | EF4 | 100 km | 75.5 mi | 21 |
| Nov 29, 1991 | EF4 | 77 km | 10.0 mi | 2 |
| Apr 24, 1975 | EF4 | 47 km | 11.9 mi | 3 |
| Apr 3, 1956 | EF4 | 81 km | 41.8 mi | 0 |
| May 25, 2024 | EF3 | 72 km | 7.9 mi | 0 |
| Mar 30, 2022 | EF3 | 72 km | 5.2 mi | 0 |
| May 22, 2019 | EF3 | 63 km | 11.3 mi | 3 |
| May 22, 2019 | EF3 | 64 km | 9.2 mi | 0 |
| May 22, 2011 | EF3 | 81 km | 17.9 mi | 0 |
| Dec 31, 2010 | EF3 | 97 km | 21.1 mi | 4 |
| Jan 7, 2008 | EF3 | 98 km | 50.4 mi | 3 |
| Mar 12, 2006 | EF3 | 33 km | 42.0 mi | 1 |
| Mar 12, 2006 | EF3 | 80 km | 25.0 mi | 0 |
| May 4, 2003 | EF3 | 22 km | 49.0 mi | 7 |
| May 4, 2003 | EF3 | 87 km | 25.0 mi | 5 |
| May 4, 2003 | EF3 | 99 km | 86.0 mi | 5 |
| Apr 29, 1983 | EF3 | 73 km | 5.5 mi | 1 |
| Mar 26, 1983 | EF3 | 94 km | 7.0 mi | 0 |
| Mar 15, 1982 | EF3 | 81 km | 9.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (4,546 acres, 1992).
| Year | Name | Acres Burned | Distance |
| 1992 | UNNAMED | 4,546 | 96 km |
| 1986 | UNNAMED | 3,427 | 56 km |
| 2007 | UNNAMED | 3,160 | 94 km |
| 2016 | RXBURN | 2,951 | 75 km |
| 1996 | UNNAMED | 2,918 | 96 km |
| 2021 | BRUSH CREEK | 2,814 | 78 km |
| 2004 | UNNAMED | 2,661 | 93 km |
| 2020 | TWIN PEAKS | 2,578 | 74 km |
| 2023 | RX TWIN PEAKS | 2,560 | 75 km |
| 2019 | SWAN CREEK | 2,365 | 98 km |
| 2002 | ROUNDTPCOX | 2,248 | 34 km |
| 2021 | EAST FORK | 2,134 | 36 km |
| 2021 | BIG CREEK | 2,123 | 85 km |
| 2023 | DEVREAUX | 2,031 | 89 km |
| 2007 | UNNAMED | 2,031 | 69 km |
| 1995 | UNNAMED | 2,022 | 90 km |
| 1992 | UNNAMED | 1,996 | 95 km |
| 1995 | UNNAMED | 1,992 | 96 km |
| 2024 | EAST FORK RX | 1,956 | 36 km |
| 2018 | ROCK CREEK RX | 1,956 | 31 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 32°F (-0°C) | 1.9 in | Coldest, Driest |
| February | 38°F (3°C) | 2.2 in | |
| March | 47°F (8°C) | 4.0 in | |
| April | 56°F (13°C) | 4.3 in | |
| May | 64°F (18°C) | 4.9 in | Wettest |
| June | 72°F (22°C) | 4.8 in | |
| July | 78°F (25°C) | 3.1 in | Warmest |
| August | 77°F (25°C) | 3.7 in | |
| September | 69°F (21°C) | 4.8 in | |
| October | 58°F (15°C) | 3.8 in | |
| November | 46°F (8°C) | 3.9 in | |
| December | 37°F (3°C) | 3.0 in |
Wheaton has a seasonal temperature swing of 46°F / from 32°F in January to 78°F in July. Total annual precipitation is 44.3 inches, with May being the wettest month (4.9") and January the driest (1.9").