Weather & Climate in Mill Spring, MO
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Mill Spring enjoys a temperate climate with an average annual temperature of 57°F (14°C). Winters average 33°F in January while summers reach 79°F in July. Annual precipitation totals 48.7 inches (wetter than the 38-inch national average). The area receives 8.9 inches of snow annually. The city sits at an elevation of 443 feet.
Temperature
33°F Jan (1°C)
79°F Jul (26°C)
| Annual Average | 56.5°F |
| 5% above US avg | |
| January Average | 33°F (1°C) |
| July Average | 79°F (26°C) |
Geography
| Elevation | 443 ft (135 m) |
| Area | 0.4 sq mi (1.1 km²) |
| Population Density | 261/sq mi |
| Coordinates | 37.0620°N, 90.6840°W |
| Timezone | America/Chicago |
| Nearest Airport | Poplar Bluff Regional Business (POF) 28 miles away |
Precipitation & Snow
Air Quality
Earthquake History
366 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.
| Sep 26, 1990 | 4 km SE of Chaffee, Missouri | M4.8 | 96 km | 1 km |
| May 4, 1991 | 2 km NNW of Risco, Missouri | M4.5 | 94 km | 11 km |
| May 1, 2005 | 5 km SSE of Manila, Arkansas | M4.2 | 145 km | 10 km |
| Feb 5, 1994 | 2 km WNW of Dongola, Illinois | M4.2 | 137 km | 16 km |
| Feb 10, 2005 | 3 km NNW of Etowah, Arkansas | M4.1 | 150 km | 15 km |
| Jun 2, 2005 | 12 km S of Ridgely, Tennessee | M4.0 | 148 km | 15 km |
| Apr 30, 2003 | 1 km N of Blytheville, Arkansas | M4.0 | 142 km | 24 km |
| Aug 22, 2000 | 19 km WNW of Maynard, Arkansas | M3.9 | 75 km | 10 km |
| Jul 7, 1991 | 11 km ENE of Brandsville, Missouri | M3.9 | 89 km | 8 km |
| Feb 21, 2012 | 4 km SSE of Bertrand, Missouri | M3.9 | 114 km | 8 km |
| Oct 21, 1999 | 9 km NW of Maynard, Arkansas | M3.9 | 69 km | 10 km |
| Jun 7, 2011 | 18 km NNW of Potosi, Missouri | M3.9 | 115 km | 21 km |
| Nov 29, 1996 | 1 km W of Blytheville, Arkansas | M3.8 | 143 km | 19 km |
| May 16, 2024 | 6 km S of Ridgely, Tennessee | M3.8 | 144 km | 8 km |
| Mar 2, 2010 | 2 km ENE of East Prairie, Missouri | M3.7 | 122 km | 8 km |
| Aug 16, 2003 | 5 km W of Thomasville, Missouri | M3.7 | 87 km | 0 km |
| Jan 16, 2018 | 4 km SW of Caruthersville, Missouri | M3.6 | 134 km | 9 km |
| Oct 15, 2017 | 6 km SE of Manila, Arkansas | M3.6 | 146 km | 17 km |
| Jun 20, 2005 | 4 km WSW of Blandville, Kentucky | M3.6 | 150 km | 19 km |
| Sep 22, 2011 | 6 km E of Grandin, Missouri | M3.6 | 28 km | 11 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tornado History
417 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 52 fatalities, 702 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Feb 28, 2017 | EF4 | 95 km | 53.5 mi | 1 |
| Apr 24, 2002 | EF4 | 31 km | 40.5 mi | 0 |
| Jan 21, 1999 | EF4 | 88 km | 16.0 mi | 0 |
| Apr 22, 1981 | EF4 | 57 km | 63.0 mi | 1 |
| Jun 22, 1969 | EF4 | 75 km | 15.1 mi | 4 |
| Dec 21, 1967 | EF4 | 79 km | 27.9 mi | 3 |
| May 21, 1957 | EF4 | 45 km | 9.1 mi | 7 |
| May 26, 2024 | EF3 | 98 km | 12.4 mi | 0 |
| May 26, 2024 | EF3 | 90 km | 19.6 mi | 0 |
| Oct 24, 2021 | EF3 | 76 km | 16.7 mi | 0 |
| Oct 24, 2021 | EF3 | 59 km | 18.8 mi | 0 |
| Nov 17, 2013 | EF3 | 85 km | 14.3 mi | 0 |
| Feb 29, 2012 | EF3 | 48 km | 20.0 mi | 1 |
| May 25, 2011 | EF3 | 31 km | 47.4 mi | 0 |
| Apr 2, 2006 | EF3 | 97 km | 77.0 mi | 2 |
| May 6, 2003 | EF3 | 97 km | 2.0 mi | 0 |
| Apr 27, 2002 | EF3 | 57 km | 4.0 mi | 1 |
| Oct 18, 1984 | EF3 | 81 km | 26.0 mi | 1 |
| Feb 21, 1976 | EF3 | 42 km | 23.7 mi | 1 |
| May 7, 1973 | EF3 | 46 km | 36.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: HANDY (12,818 acres, 2012).
| Year | Name | Acres Burned | Distance |
| 2012 | HANDY | 12,818 | 47 km |
| 2011 | UNNAMED | 9,641 | 46 km |
| 2022 | CEDAR BLUFF | 9,617 | 47 km |
| 2020 | BIG BARREN CREEK | 8,150 | 46 km |
| 2022 | STEGALL MOUNTAIN | 6,979 | 46 km |
| 2010 | WYLIE KING 1 | 6,077 | 21 km |
| 2015 | 15 STEGAL MOUNTAIN | 5,112 | 46 km |
| 2011 | MINNINGHAW | 4,792 | 74 km |
| 2024 | BRIDGES RX | 4,781 | 45 km |
| 2009 | STEGAL MTN. COMPLEX | 4,717 | 45 km |
| 2017 | UNNAMED | 4,602 | 74 km |
| 2021 | MILLER KING | 4,130 | 18 km |
| 1999 | STEGALL99 | 3,415 | 45 km |
| 2013 | UNNAMED | 3,313 | 14 km |
| 2005 | UNNAMED | 3,252 | 72 km |
| 2021 | VICTORY 1-7 | 3,237 | 24 km |
| 2024 | WOLF MOUNTAIN RX | 3,140 | 59 km |
| 1988 | HANES 1 | 3,139 | 53 km |
| 2021 | COUNCIL BLUFF | 3,035 | 76 km |
| 2011 | MUD POND | 3,030 | 55 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 33°F (1°C) | 3.4 in | Coldest |
| February | 38°F (3°C) | 3.2 in | Driest |
| March | 47°F (8°C) | 4.7 in | |
| April | 57°F (14°C) | 5.3 in | Wettest |
| May | 66°F (19°C) | 5.1 in | |
| June | 74°F (24°C) | 3.9 in | |
| July | 79°F (26°C) | 4.6 in | Warmest |
| August | 77°F (25°C) | 3.3 in | |
| September | 69°F (20°C) | 3.8 in | |
| October | 57°F (14°C) | 3.4 in | |
| November | 46°F (8°C) | 4.6 in | |
| December | 37°F (3°C) | 3.4 in |
Mill Spring has a seasonal temperature swing of 45°F / from 33°F in January to 79°F in July. Total annual precipitation is 48.7 inches, with April being the wettest month (5.3") and February the driest (3.2").