All Countries
Weather & Climate in Glen Allen, MO
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Glen Allen enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 31°F in January while summers reach 78°F in July. The area gets 250 sunny days per year, above the national average. Annual precipitation totals 47.2 inches (wetter than the 38-inch national average). The area receives 2.9 inches of snow annually. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 469 feet.
Temperature
31°F Jan (-1°C)
78°F Jul (25°C)
| Annual Average | 55.8°F |
| 3% above US avg | |
| January Average | 31°F (-1°C) |
| July Average | 78°F (25°C) |
| Sunny Days | 250 days/yr |
Geography
| Elevation | 469 ft (143 m) |
| Area | 0.1 sq mi (0.2 km²) |
| Population Density | 1,250/sq mi |
| Coordinates | 37.3169°N, 90.0278°W |
| Timezone | America/Chicago |
| Nearest Airport | Cape Girardeau Regional (CGI) 25 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Earthquake History
360 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 | 41 km | 1 km |
| May 4, 1991 | 2 km NNW of Risco, Missouri | M4.5 | 84 km | 11 km |
| Feb 5, 1994 | 2 km WNW of Dongola, Illinois | M4.2 | 75 km | 16 km |
| Jun 2, 2005 | 12 km S of Ridgely, Tennessee | M4.0 | 139 km | 15 km |
| Jun 6, 2003 | 1 km NE of Bardwell, Kentucky | M4.0 | 104 km | 3 km |
| Aug 22, 2000 | 19 km WNW of Maynard, Arkansas | M3.9 | 134 km | 10 km |
| Oct 21, 1999 | 9 km NW of Maynard, Arkansas | M3.9 | 125 km | 10 km |
| Feb 21, 2012 | 4 km SSE of Bertrand, Missouri | M3.9 | 73 km | 8 km |
| Jun 7, 2011 | 18 km NNW of Potosi, Missouri | M3.9 | 114 km | 21 km |
| May 16, 2024 | 6 km S of Ridgely, Tennessee | M3.8 | 133 km | 8 km |
| Mar 2, 2010 | 2 km ENE of East Prairie, Missouri | M3.7 | 84 km | 8 km |
| Apr 24, 2019 | 12 km NNW of Dyersburg, Tennessee | M3.7 | 141 km | 14 km |
| Jan 16, 2018 | 4 km SW of Caruthersville, Missouri | M3.6 | 132 km | 9 km |
| Jun 20, 2005 | 4 km WSW of Blandville, Kentucky | M3.6 | 101 km | 19 km |
| Apr 2, 2015 | 1 km WNW of Cooter, Missouri | M3.6 | 142 km | 10 km |
| Sep 22, 2011 | 6 km E of Grandin, Missouri | M3.6 | 85 km | 11 km |
| Mar 15, 2017 | 9 km ESE of Wyatt, Missouri | M3.6 | 94 km | 8 km |
| Jun 15, 2004 | 3 km S of Canalou, Missouri | M3.5 | 73 km | 5 km |
| Jul 16, 2004 | 6 km SE of Wyatt, Missouri | M3.5 | 91 km | 4 km |
| May 1, 2016 | 5 km SE of New Grand Chain, Illinois | M3.5 | 93 km | 16 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
566 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 62 fatalities, 966 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Feb 28, 2017 | EF4 | 45 km | 53.5 mi | 1 |
| Sep 22, 2006 | EF4 | 44 km | 27.5 mi | 0 |
| May 6, 2003 | EF4 | 88 km | 33.0 mi | 2 |
| Apr 24, 2002 | EF4 | 95 km | 40.5 mi | 0 |
| May 29, 1982 | EF4 | 96 km | 17.0 mi | 10 |
| Apr 22, 1981 | EF4 | 87 km | 63.0 mi | 1 |
| Jun 22, 1969 | EF4 | 65 km | 15.1 mi | 4 |
| Dec 18, 1957 | EF4 | 64 km | 28.3 mi | 11 |
| May 26, 2024 | EF3 | 64 km | 19.6 mi | 0 |
| May 26, 2024 | EF3 | 94 km | 4.9 mi | 0 |
| Oct 24, 2021 | EF3 | 41 km | 18.8 mi | 0 |
| Oct 24, 2021 | EF3 | 55 km | 16.7 mi | 0 |
| Nov 17, 2013 | EF3 | 42 km | 14.3 mi | 0 |
| Feb 29, 2012 | EF3 | 49 km | 20.0 mi | 1 |
| May 25, 2011 | EF3 | 92 km | 47.4 mi | 0 |
| Mar 11, 2006 | EF3 | 93 km | 5.1 mi | 0 |
| Mar 11, 2006 | EF3 | 56 km | 53.5 mi | 2 |
| May 6, 2003 | EF3 | 32 km | 2.0 mi | 0 |
| Apr 28, 2002 | EF3 | 62 km | 19.3 mi | 1 |
| Apr 27, 2002 | EF3 | 11 km | 4.0 mi | 1 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: WYLIE KING 1 (6,077 acres, 2010).
| Year | Name | Acres Burned | Distance |
| 2010 | WYLIE KING 1 | 6,077 | 66 km |
| 2021 | MILLER KING | 4,130 | 67 km |
| 2013 | UNNAMED | 3,313 | 69 km |
| 2021 | VICTORY 1-7 | 3,237 | 67 km |
| 2021 | COUNCIL BLUFF | 3,035 | 92 km |
| 2013 | UNNAMED | 2,963 | 97 km |
| 2024 | COUNCIL BLUFF WEST RX | 2,846 | 92 km |
| 2005 | UNNAMED | 2,751 | 98 km |
| 2005 | MCKENZIE HILL | 2,722 | 72 km |
| 2010 | COUNCIL BLUFF LAKE | 2,651 | 92 km |
| 2006 | UNNAMED | 2,512 | 92 km |
| 2000 | UNNAMED | 2,203 | 97 km |
| 2021 | RED SHALE UNIT RX | 2,123 | 93 km |
| 2015 | CARTY | 1,674 | 85 km |
| 2010 | CHILTON SOUTH RX | 1,649 | 96 km |
| 2014 | UNNAMED | 1,627 | 62 km |
| 2019 | ATWOOD RIDGE RX | 1,622 | 62 km |
| 2015 | UNNAMED | 1,586 | 96 km |
| 2007 | BRAWLEY HOLLOW | 1,575 | 73 km |
| 2010 | DELBRIDGE SOUTH | 1,574 | 96 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 31°F (-1°C) | 2.9 in | Coldest, Driest |
| February | 36°F (2°C) | 3.2 in | |
| March | 46°F (8°C) | 4.9 in | Wettest |
| April | 56°F (13°C) | 4.5 in | |
| May | 64°F (18°C) | 4.7 in | |
| June | 73°F (23°C) | 3.8 in | |
| July | 78°F (25°C) | 3.9 in | Warmest |
| August | 76°F (25°C) | 3.8 in | |
| September | 69°F (21°C) | 3.6 in | |
| October | 58°F (14°C) | 3.2 in | |
| November | 47°F (8°C) | 4.5 in | |
| December | 37°F (3°C) | 4.2 in |
Glen Allen has a seasonal temperature swing of 47°F / from 31°F in January to 78°F in July. Total annual precipitation is 47.2 inches, with March being the wettest month (4.9") and January the driest (2.9").