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Weather & Climate in Clarksville, MO
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Clarksville experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 26°F in January while summers reach 77°F in July. The area gets 269 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 36.8 inches. The area receives 5.8 inches of snow annually. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 489 feet.
Temperature
26°F Jan (-3°C)
77°F Jul (25°C)
| Annual Average | 53.4°F |
| 1% below US avg | |
| January Average | 26°F (-3°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 269 days/yr |
Geography
| Elevation | 489 ft (149 m) |
| Area | 0.8 sq mi (2.1 km²) |
| Population Density | 769/sq mi |
| Coordinates | 39.3706°N, 90.9051°W |
| Timezone | America/Chicago |
| Nearest Airport | Quincy Regional-Baldwin Field (UIN) 42 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: M3.9.
| Jun 7, 2011 | 18 km NNW of Potosi, Missouri | M3.9 | 144 km | 21 km |
| Aug 27, 1993 | 5 km SSE of Olympian Village, Missouri | M3.3 | 148 km | 22 km |
| Feb 8, 2004 | 6 km SSW of Stoutsville, Missouri | M2.9 | 85 km | 5 km |
| Jul 8, 2003 | 1 km N of Leasburg, Missouri | M2.9 | 144 km | 4 km |
| Apr 29, 2022 | 1 km SSW of Peerless Park, Missouri | M2.8 | 100 km | 8 km |
| Mar 28, 2024 | 1 km NNE of Germantown, Illinois | M2.8 | 148 km | 24 km |
| May 5, 2008 | 3 km SSE of Fenton, Missouri | M2.8 | 107 km | 19 km |
| Sep 5, 2015 | 5 km SE of High Ridge, Missouri | M2.7 | 111 km | 8 km |
| Mar 7, 2009 | 7 km S of Miramiguoa Park, Missouri | M2.6 | 134 km | 7 km |
| Feb 3, 2014 | 18 km NW of Potosi, Missouri | M2.6 | 145 km | 14 km |
| Sep 19, 2024 | 1 km S of Old Monroe, Missouri | M2.6 | 52 km | 2 km |
| Jan 15, 1998 | 1 km SSE of Fenton, Missouri | M2.5 | 105 km | 16 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
493 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 34 fatalities, 915 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Apr 22, 2011 | EF4 | 79 km | 21.3 mi | 0 |
| Apr 3, 1981 | EF4 | 99 km | 11.9 mi | 0 |
| Jan 24, 1967 | EF4 | 83 km | 25.0 mi | 3 |
| Feb 10, 1959 | EF4 | 97 km | 23.9 mi | 21 |
| Dec 10, 2021 | EF3 | 86 km | 24.8 mi | 1 |
| Dec 10, 2021 | EF3 | 100 km | 4.2 mi | 6 |
| May 31, 2013 | EF3 | 77 km | 31.7 mi | 0 |
| May 31, 2013 | EF3 | 91 km | 10.6 mi | 0 |
| Apr 19, 2011 | EF3 | 93 km | 4.3 mi | 0 |
| Mar 13, 2006 | EF3 | 54 km | 44.5 mi | 0 |
| Mar 13, 2006 | EF3 | 68 km | 6.0 mi | 0 |
| May 10, 2003 | EF3 | 78 km | 12.0 mi | 0 |
| Nov 15, 1988 | EF3 | 66 km | 1.0 mi | 0 |
| Apr 29, 1984 | EF3 | 47 km | 8.0 mi | 0 |
| May 1, 1983 | EF3 | 55 km | 4.0 mi | 0 |
| Jun 21, 1981 | EF3 | 98 km | 8.8 mi | 1 |
| Apr 7, 1980 | EF3 | 82 km | 7.3 mi | 0 |
| Sep 30, 1973 | EF3 | 96 km | 0.1 mi | 0 |
| Jun 12, 1970 | EF3 | 83 km | 16.0 mi | 0 |
| Oct 24, 1967 | EF3 | 81 km | 21.8 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 26°F (-3°C) | 1.5 in | Coldest, Driest |
| February | 32°F (-0°C) | 1.7 in | |
| March | 43°F (6°C) | 3.1 in | |
| April | 54°F (12°C) | 3.7 in | |
| May | 64°F (18°C) | 4.3 in | Wettest |
| June | 73°F (23°C) | 3.6 in | |
| July | 77°F (25°C) | 3.7 in | Warmest |
| August | 75°F (24°C) | 3.3 in | |
| September | 68°F (20°C) | 3.4 in | |
| October | 56°F (13°C) | 2.8 in | |
| November | 43°F (6°C) | 3.1 in | |
| December | 32°F (-0°C) | 2.5 in |
Clarksville has a seasonal temperature swing of 51°F / from 26°F in January to 77°F in July. Total annual precipitation is 36.8 inches, with May being the wettest month (4.3") and January the driest (1.5").