Weather & Climate in Clark, MO
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Clark experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 25°F in January while summers reach 76°F in July. Annual precipitation totals 38.6 inches. The area receives 26.6 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 676 feet.
Temperature
25°F Jan (-4°C)
76°F Jul (24°C)
| Annual Average | 52.1°F |
| 4% below US avg | |
| January Average | 25°F (-4°C) |
| July Average | 76°F (24°C) |
Geography
| Elevation | 676 ft (206 m) |
| Area | 0.6 sq mi (1.5 km²) |
| Population Density | 247/sq mi |
| Coordinates | 40.3962°N, 91.7362°W |
| Timezone | America/Chicago |
| Nearest Airport | Southeast Iowa Regional (BRL) 42 miles away |
Precipitation & Snow
Air Quality
Earthquake History
1 earthquake (M2.5+) recorded within 150 km since 1990. Strongest on record: M2.9.
| Feb 8, 2004 | 6 km SSW of Stoutsville, Missouri | M2.9 | 101 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tornado History
405 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 13 fatalities, 254 injuries.
| Date | Rating | Distance | Path | Fatalities |
| May 13, 1995 | EF4 | 41 km | 50.0 mi | 0 |
| Apr 20, 1973 | EF4 | 82 km | 3.8 mi | 1 |
| Jan 24, 1967 | EF4 | 67 km | 25.7 mi | 0 |
| Mar 31, 2023 | EF3 | 90 km | 26.1 mi | 0 |
| May 27, 2019 | EF3 | 37 km | 7.3 mi | 0 |
| May 10, 2003 | EF3 | 81 km | 12.0 mi | 0 |
| Apr 8, 1999 | EF3 | 70 km | 16.0 mi | 0 |
| Apr 8, 1999 | EF3 | 25 km | 7.5 mi | 0 |
| May 15, 1998 | EF3 | 98 km | 47.0 mi | 0 |
| Jun 21, 1981 | EF3 | 96 km | 8.8 mi | 1 |
| Apr 13, 1974 | EF3 | 71 km | 0.1 mi | 0 |
| Apr 13, 1974 | EF3 | 26 km | 11.0 mi | 0 |
| Sep 30, 1973 | EF3 | 71 km | 0.1 mi | 0 |
| May 1, 1973 | EF3 | 3 km | 3.6 mi | 2 |
| Apr 20, 1973 | EF3 | 27 km | 9.5 mi | 0 |
| Jun 12, 1970 | EF3 | 97 km | 8.5 mi | 0 |
| Apr 21, 1967 | EF3 | 69 km | 0.1 mi | 0 |
| Apr 16, 1967 | EF3 | 46 km | 19.4 mi | 2 |
| Jan 24, 1967 | EF3 | 47 km | 4.3 mi | 1 |
| Jan 24, 1967 | EF3 | 60 km | 25.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Wildfire History
5 wildfires (100+ acres) recorded within 100 km. Largest: UNIT 3 (1,206 acres, 1999).
| Year | Name | Acres Burned | Distance |
| 1999 | UNIT 3 | 1,206 | 97 km |
| 2002 | HSB 03 2 | 1,130 | 96 km |
| 2000 | DESTRUST A | 756 | 97 km |
| 2006 | HSB 003 | 674 | 96 km |
| 2004 | HSB 009 | 608 | 97 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 25°F (-4°C) | 1.4 in | Coldest, Driest |
| February | 29°F (-2°C) | 1.8 in | |
| March | 40°F (5°C) | 2.4 in | |
| April | 52°F (11°C) | 3.4 in | |
| May | 63°F (17°C) | 5.5 in | Wettest |
| June | 72°F (22°C) | 5.3 in | |
| July | 76°F (24°C) | 4.2 in | Warmest |
| August | 74°F (24°C) | 4.0 in | |
| September | 67°F (19°C) | 3.8 in | |
| October | 55°F (13°C) | 3.0 in | |
| November | 42°F (5°C) | 2.3 in | |
| December | 30°F (-1°C) | 1.6 in |
Clark has a seasonal temperature swing of 51°F / from 25°F in January to 76°F in July. Total annual precipitation is 38.6 inches, with May being the wettest month (5.5") and January the driest (1.4").