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Weather & Climate in Oak Grove, MO
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Oak Grove experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 27°F in January while summers reach 78°F in July. The area gets 264 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 39.7 inches. The area receives 4.6 inches of snow annually. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 873 feet.
Temperature
27°F Jan (-3°C)
78°F Jul (26°C)
| Annual Average | 54.1°F |
| 0% below US avg | |
| January Average | 27°F (-3°C) |
| July Average | 78°F (26°C) |
| Sunny Days | 264 days/yr |
Geography
| Elevation | 873 ft (266 m) |
| Area | 6.4 sq mi (16.6 km²) |
| Population Density | 1,322/sq mi |
| Coordinates | 39.0050°N, 94.1294°W |
| Timezone | America/Chicago |
| Nearest Airport | Kansas City International (MCI) 37 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: M3.3.
| May 18, 2005 | Missouri | M3.3 | 62 km | 5 km |
| Jul 31, 2005 | Missouri | M3.3 | 126 km | 5 km |
| Mar 23, 2007 | 5 km N of Nortonville, Kansas | M3.1 | 116 km | 5 km |
| Mar 30, 2001 | 1 km SW of Hermitage, Missouri | M3.1 | 138 km | 5 km |
| May 13, 1999 | 6 km WSW of Kansas City, Kansas | M3.0 | 50 km | 5 km |
| Apr 4, 2015 | 3 km ESE of Clinton, Missouri | M2.6 | 79 km | 2 km |
| Jul 15, 2025 | 3 km W of Hale, Missouri | M2.5 | 92 km | 8 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
495 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 20 fatalities, 424 injuries.
| Date | Rating | Distance | Path | Fatalities |
| May 29, 2004 | EF4 | 98 km | 22.0 mi | 3 |
| May 4, 2003 | EF4 | 61 km | 21.0 mi | 2 |
| May 4, 2003 | EF4 | 39 km | 5.0 mi | 0 |
| May 4, 1977 | EF4 | 37 km | 48.6 mi | 0 |
| May 4, 1977 | EF4 | 28 km | 12.0 mi | 0 |
| Apr 23, 1975 | EF4 | 79 km | 11.4 mi | 1 |
| Apr 19, 1973 | EF4 | 74 km | 10.0 mi | 0 |
| Jun 8, 1966 | EF4 | 93 km | 19.9 mi | 1 |
| May 7, 1961 | EF4 | 72 km | 26.2 mi | 0 |
| May 22, 1952 | EF4 | 94 km | 26.9 mi | 0 |
| Mar 6, 2017 | EF3 | 11 km | 17.7 mi | 0 |
| May 2, 2008 | EF3 | 44 km | 0.9 mi | 0 |
| Mar 12, 2006 | EF3 | 80 km | 35.0 mi | 0 |
| May 29, 2004 | EF3 | 83 km | 7.0 mi | 0 |
| Jun 19, 1981 | EF3 | 99 km | 7.7 mi | 1 |
| May 12, 1980 | EF3 | 72 km | 15.8 mi | 0 |
| May 4, 1977 | EF3 | 76 km | 11.2 mi | 0 |
| May 4, 1977 | EF3 | 18 km | 26.2 mi | 1 |
| May 4, 1977 | EF3 | 74 km | 29.8 mi | 2 |
| Apr 20, 1973 | EF3 | 91 km | 5.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
3 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (2,089 acres, 2006).
| Year | Name | Acres Burned | Distance |
| 2006 | UNNAMED | 2,089 | 78 km |
| 2005 | NR STEELE | 1,652 | 97 km |
| 2012 | HIGHWAY E | 897 | 64 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 27°F (-3°C) | 1.3 in | Coldest, Driest |
| February | 33°F (0°C) | 1.4 in | |
| March | 44°F (6°C) | 2.8 in | |
| April | 55°F (13°C) | 3.8 in | |
| May | 64°F (18°C) | 5.0 in | Wettest |
| June | 73°F (23°C) | 4.7 in | |
| July | 78°F (26°C) | 4.1 in | Warmest |
| August | 76°F (24°C) | 3.7 in | |
| September | 68°F (20°C) | 4.8 in | |
| October | 57°F (14°C) | 3.5 in | |
| November | 43°F (6°C) | 2.7 in | |
| December | 32°F (0°C) | 1.9 in |
Oak Grove has a seasonal temperature swing of 51°F / from 27°F in January to 78°F in July. Total annual precipitation is 39.7 inches, with May being the wettest month (5.0") and January the driest (1.3").