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Weather & Climate in Maryville, MO
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Maryville experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 23°F in January while summers reach 76°F in July. The area gets 273 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 34.8 inches. The area receives 3.0 inches of snow annually. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 1,161 feet.
Temperature
23°F Jan (-5°C)
76°F Jul (25°C)
| Annual Average | 51.2°F |
| 5% below US avg | |
| January Average | 23°F (-5°C) |
| July Average | 76°F (25°C) |
| Sunny Days | 273 days/yr |
Geography
| Elevation | 1,161 ft (354 m) |
| Area | 5.8 sq mi (15.0 km²) |
| Population Density | 1,624/sq mi |
| Coordinates | 40.3461°N, 94.8725°W |
| Timezone | America/Chicago |
| Nearest Airport | Kansas City International (MCI) 73 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Earthquake History
7 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.6.
| Dec 17, 2009 | 2 km NW of Auburn, Nebraska | M3.6 | 84 km | 5 km |
| Jul 16, 2004 | 6 km SSE of Riverton, Iowa | M3.5 | 66 km | 5 km |
| Mar 23, 2007 | 5 km N of Nortonville, Kansas | M3.1 | 106 km | 5 km |
| Feb 11, 1995 | 6 km E of Clearmont, Missouri | M3.1 | 19 km | 5 km |
| May 13, 1999 | 6 km WSW of Kansas City, Kansas | M3.0 | 139 km | 5 km |
| Jan 6, 2014 | 5 km NW of Liberty, Nebraska | M2.9 | 144 km | 5 km |
| Mar 31, 1993 | 2 km SE of Nemaha, Nebraska | M2.9 | 66 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
573 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 19 fatalities, 311 injuries.
| Date | Rating | Distance | Path | Fatalities |
| May 21, 2024 | EF4 | 62 km | 40.7 mi | 5 |
| May 29, 2004 | EF4 | 74 km | 22.0 mi | 3 |
| Apr 8, 1999 | EF4 | 89 km | 56.0 mi | 0 |
| Apr 8, 1999 | EF4 | 56 km | 49.0 mi | 0 |
| May 27, 1995 | EF4 | 89 km | 57.0 mi | 0 |
| May 24, 1989 | EF4 | 72 km | 49.0 mi | 0 |
| Jun 7, 1984 | EF4 | 72 km | 134.0 mi | 3 |
| Jun 2, 1980 | EF4 | 86 km | 31.2 mi | 0 |
| Mar 29, 1979 | EF4 | 28 km | 18.8 mi | 0 |
| Jun 22, 1964 | EF4 | 63 km | 11.9 mi | 0 |
| Apr 12, 1964 | EF4 | 47 km | 13.1 mi | 1 |
| Apr 5, 1954 | EF4 | 49 km | 6.3 mi | 0 |
| May 21, 2024 | EF3 | 63 km | 33.9 mi | 0 |
| May 29, 2004 | EF3 | 92 km | 7.0 mi | 0 |
| Apr 11, 2001 | EF3 | 43 km | 76.5 mi | 0 |
| May 27, 1995 | EF3 | 78 km | 30.4 mi | 0 |
| Jun 7, 1984 | EF3 | 45 km | 25.0 mi | 0 |
| Aug 28, 1979 | EF3 | 99 km | 38.3 mi | 2 |
| Mar 29, 1979 | EF3 | 27 km | 29.6 mi | 0 |
| Mar 29, 1979 | EF3 | 63 km | 57.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
6 wildfires (100+ acres) recorded within 100 km. Largest: MOSQR-FY20-RX-WUI (964 acres, 2020).
| Year | Name | Acres Burned | Distance |
| 2020 | MOSQR-FY20-RX-WUI | 964 | 42 km |
| 2016 | SQR BM SL DESOTO 2016 WUI RX | 866 | 42 km |
| 1988 | NORTH POOL | 698 | 43 km |
| 2020 | UNNAMED | 645 | 42 km |
| 2009 | UNIT 6 | 625 | 43 km |
| 2002 | SCRDGRS 6 | 536 | 44 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 23°F (-5°C) | 0.9 in | Coldest, Driest |
| February | 29°F (-2°C) | 0.9 in | |
| March | 40°F (5°C) | 2.2 in | |
| April | 52°F (11°C) | 3.1 in | |
| May | 62°F (17°C) | 4.3 in | |
| June | 72°F (22°C) | 4.3 in | |
| July | 76°F (25°C) | 4.5 in | Warmest, Wettest |
| August | 74°F (23°C) | 4.3 in | |
| September | 66°F (19°C) | 4.4 in | |
| October | 54°F (12°C) | 2.8 in | |
| November | 39°F (4°C) | 2.1 in | |
| December | 28°F (-3°C) | 1.2 in |
Maryville has a seasonal temperature swing of 54°F / from 23°F in January to 76°F in July. Total annual precipitation is 34.8 inches, with July being the wettest month (4.5") and January the driest (0.9").