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Weather & Climate in St. Charles, AR
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
St. Charles enjoys a temperate climate with an average annual temperature of 62°F (17°C). Winters average 41°F in January while summers reach 81°F in July. The area gets 301 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 51.9 inches (wetter than the 38-inch national average). The area receives 1.2 inches of snow annually. Air quality is rated Good with a median AQI of 43. The city sits at an elevation of 203 feet.
Temperature
41°F Jan (5°C)
81°F Jul (27°C)
| Annual Average | 62.0°F |
| 15% above US avg | |
| January Average | 41°F (5°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 301 days/yr |
Geography
| Elevation | 203 ft (62 m) |
| Area | 0.9 sq mi (2.2 km²) |
| Population Density | 292/sq mi |
| Coordinates | 34.3730°N, 91.1374°W |
| Timezone | America/Chicago |
| County | Arkansas County County |
| Nearest Airport | Pinebluff Regional/Grider Field (PBF) 48 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 63.2 / 100 |
| Social Vulnerability | 85.9 / 100 |
| Community Resilience | 55.0 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively Low |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
154 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.7.
| Feb 28, 2011 | 4 km NE of Greenbrier, Arkansas | M4.7 | 149 km | 3 km |
| May 4, 2001 | 8 km NNW of Holland, Arkansas | M4.3 | 143 km | 8 km |
| Apr 8, 2011 | 3 km NE of Greenbrier, Arkansas | M3.9 | 149 km | 6 km |
| Oct 29, 2012 | 8 km SW of Parkin, Arkansas | M3.9 | 103 km | 21 km |
| Feb 18, 2011 | 3 km NNE of Greenbrier, Arkansas | M3.9 | 149 km | 5 km |
| Feb 17, 2011 | 4 km NNE of Greenbrier, Arkansas | M3.8 | 150 km | 6 km |
| Apr 7, 2011 | 2 km NE of Greenbrier, Arkansas | M3.7 | 149 km | 6 km |
| Jan 8, 2019 | 8 km WNW of Hollandale, Mississippi | M3.7 | 132 km | 16 km |
| Feb 23, 2013 | 7 km SW of Trumann, Arkansas | M3.7 | 149 km | 14 km |
| Feb 20, 2011 | 3 km NNE of Greenbrier, Arkansas | M3.6 | 150 km | 5 km |
| Mar 3, 2011 | 0 km N of Greenbrier, Arkansas | M3.5 | 150 km | 7 km |
| Apr 8, 2011 | 2 km NNE of Greenbrier, Arkansas | M3.5 | 150 km | 6 km |
| Feb 16, 2011 | 4 km NNE of Greenbrier, Arkansas | M3.5 | 150 km | 7 km |
| Apr 7, 2011 | 1 km E of Greenbrier, Arkansas | M3.4 | 147 km | 6 km |
| Feb 26, 2011 | 5 km SSW of Guy, Arkansas | M3.4 | 149 km | 3 km |
| Feb 28, 2011 | 4 km S of Guy, Arkansas | M3.4 | 149 km | 2 km |
| Aug 19, 2012 | 0 km NE of Greenbrier, Arkansas | M3.3 | 149 km | 4 km |
| Jun 26, 2010 | 10 km NW of Garner, Arkansas | M3.3 | 114 km | 0 km |
| Mar 1, 2011 | 0 km NE of Greenbrier, Arkansas | M3.3 | 149 km | 6 km |
| Mar 1, 2011 | 0 km NNW of Greenbrier, Arkansas | M3.3 | 150 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
443 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 83 fatalities, 873 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Apr 3, 1968 | EF4 | 83 km | 33.7 mi | 5 |
| Mar 21, 1952 | EF4 | 71 km | 13.1 mi | 29 |
| Mar 21, 1952 | EF4 | 88 km | 7.6 mi | 2 |
| Mar 31, 2023 | EF3 | 91 km | 72.6 mi | 4 |
| Dec 23, 2015 | EF3 | 57 km | 61.6 mi | 2 |
| May 10, 2008 | EF3 | 44 km | 14.1 mi | 0 |
| Feb 24, 2007 | EF3 | 90 km | 29.1 mi | 0 |
| Apr 2, 2006 | EF3 | 95 km | 38.0 mi | 0 |
| May 4, 2003 | EF3 | 88 km | 43.0 mi | 0 |
| Feb 24, 2001 | EF3 | 82 km | 42.0 mi | 0 |
| Jan 21, 1999 | EF3 | 36 km | 16.0 mi | 0 |
| Jan 21, 1999 | EF3 | 71 km | 39.0 mi | 0 |
| Nov 19, 1988 | EF3 | 77 km | 4.0 mi | 0 |
| May 14, 1983 | EF3 | 39 km | 0.8 mi | 0 |
| May 14, 1983 | EF3 | 87 km | 5.0 mi | 0 |
| Dec 24, 1982 | EF3 | 90 km | 15.0 mi | 1 |
| Jan 7, 1978 | EF3 | 73 km | 39.6 mi | 1 |
| Apr 24, 1976 | EF3 | 43 km | 24.6 mi | 0 |
| Mar 26, 1976 | EF3 | 78 km | 9.6 mi | 0 |
| Jun 6, 1974 | EF3 | 75 km | 3.8 mi | 4 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
5 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (1,334 acres, 2006).
| Year | Name | Acres Burned | Distance |
| 2006 | UNNAMED | 1,334 | 52 km |
| 2007 | UNNAMED | 1,194 | 64 km |
| 2017 | 310 WEST OF COMO | 745 | 99 km |
| 2007 | UNNAMED | 627 | 63 km |
| 2018 | UNNAMED | 599 | 54 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 41°F (5°C) | 3.9 in | Coldest |
| February | 44°F (7°C) | 4.3 in | |
| March | 53°F (12°C) | 5.5 in | Wettest |
| April | 61°F (16°C) | 5.2 in | |
| May | 70°F (21°C) | 5.2 in | |
| June | 78°F (25°C) | 3.9 in | |
| July | 81°F (27°C) | 3.6 in | Warmest |
| August | 80°F (27°C) | 2.7 in | Driest |
| September | 74°F (23°C) | 3.3 in | |
| October | 63°F (17°C) | 3.7 in | |
| November | 53°F (11°C) | 5.2 in | |
| December | 44°F (7°C) | 5.2 in |
St. Charles has a seasonal temperature swing of 40°F / from 41°F in January to 81°F in July. Total annual precipitation is 51.7 inches, with March being the wettest month (5.5") and August the driest (2.7").