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Weather & Climate in Keo, AR
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Keo 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 50.4 inches (wetter than the 38-inch national average). The area receives 3.8 inches of snow annually. Air quality is rated Good with a median AQI of 43. The city sits at an elevation of 228 feet.
Temperature
41°F Jan (5°C)
81°F Jul (27°C)
| Annual Average | 61.7°F |
| 14% above US avg | |
| January Average | 41°F (5°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 301 days/yr |
Geography
| Elevation | 228 ft (69 m) |
| Area | 4.7 sq mi (12.3 km²) |
| Population Density | 64/sq mi |
| Coordinates | 34.6093°N, 92.0116°W |
| Timezone | America/Chicago |
| County | Pulaski County County |
| Nearest Airport | Bill And Hillary Clinton Ntl/Adams Field (LIT) 15 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 96.8 / 100 |
| Social Vulnerability | 61.3 / 100 |
| Community Resilience | 80.2 / 100 |
Hazard Breakdown
| Tornado | Very High |
| Hurricane | Relatively Low |
| Earthquake | Relatively High |
| Wildfire | Relatively Low |
| Flood | Relatively High |
| Hail | Relatively High |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Very High |
| Lightning | Very High |
| Ice Storm | Very High |
| Drought | Very Low |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
233 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 | 80 km | 3 km |
| May 4, 2001 | 8 km NNW of Holland, Arkansas | M4.3 | 75 km | 8 km |
| Feb 18, 2011 | 4 km NNE of Greenbrier, Arkansas | M4.1 | 81 km | 6 km |
| Oct 29, 2012 | 8 km SW of Parkin, Arkansas | M3.9 | 142 km | 21 km |
| Apr 8, 2011 | 3 km NE of Greenbrier, Arkansas | M3.9 | 79 km | 6 km |
| Feb 18, 2011 | 3 km NNE of Greenbrier, Arkansas | M3.9 | 79 km | 5 km |
| Feb 17, 2011 | 4 km NNE of Greenbrier, Arkansas | M3.8 | 80 km | 6 km |
| Jun 4, 2014 | 3 km ESE of Fairfield Bay, Arkansas | M3.8 | 110 km | 0 km |
| Apr 7, 2011 | 2 km NE of Greenbrier, Arkansas | M3.7 | 79 km | 6 km |
| Feb 20, 2011 | 3 km NNE of Greenbrier, Arkansas | M3.6 | 80 km | 5 km |
| Feb 28, 2011 | 4 km NNE of Greenbrier, Arkansas | M3.6 | 81 km | 4 km |
| Apr 8, 2011 | 2 km NNE of Greenbrier, Arkansas | M3.5 | 79 km | 6 km |
| Feb 25, 2011 | 4 km NNE of Greenbrier, Arkansas | M3.5 | 81 km | 6 km |
| Mar 3, 2011 | 0 km N of Greenbrier, Arkansas | M3.5 | 78 km | 7 km |
| Nov 15, 1990 | 16 km NNW of Hector, Arkansas | M3.5 | 145 km | 29 km |
| Mar 9, 2011 | 1 km NW of Greenbrier, Arkansas | M3.5 | 79 km | 6 km |
| Feb 16, 2011 | 4 km NNE of Greenbrier, Arkansas | M3.5 | 80 km | 7 km |
| May 24, 2013 | 16 km WSW of Center Ridge, Arkansas | M3.4 | 100 km | 6 km |
| May 22, 2013 | 16 km WSW of Center Ridge, Arkansas | M3.4 | 100 km | 5 km |
| Feb 19, 2011 | 4 km NNE of Greenbrier, Arkansas | M3.4 | 80 km | 7 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
604 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 197 fatalities, 2,524 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Apr 27, 2014 | EF4 | 62 km | 41.1 mi | 16 |
| Mar 1, 1997 | EF4 | 48 km | 14.0 mi | 10 |
| Mar 1, 1997 | EF4 | 31 km | 11.0 mi | 5 |
| May 26, 1973 | EF4 | 94 km | 54.8 mi | 3 |
| Apr 3, 1968 | EF4 | 78 km | 33.7 mi | 5 |
| Apr 10, 1965 | EF4 | 63 km | 4.7 mi | 6 |
| Mar 21, 1952 | EF4 | 74 km | 14.6 mi | 50 |
| Mar 21, 1952 | EF4 | 36 km | 7.6 mi | 2 |
| Mar 21, 1952 | EF4 | 82 km | 13.1 mi | 29 |
| Mar 31, 2023 | EF3 | 45 km | 34.2 mi | 0 |
| Apr 25, 2011 | EF3 | 94 km | 16.8 mi | 1 |
| May 10, 2008 | EF3 | 41 km | 14.1 mi | 0 |
| May 2, 2008 | EF3 | 95 km | 45.3 mi | 5 |
| Feb 24, 2007 | EF3 | 100 km | 29.1 mi | 0 |
| Nov 27, 2005 | EF3 | 86 km | 2.0 mi | 0 |
| Nov 27, 2005 | EF3 | 87 km | 19.0 mi | 0 |
| Nov 27, 2005 | EF3 | 86 km | 15.0 mi | 1 |
| May 4, 2003 | EF3 | 54 km | 34.9 mi | 0 |
| May 4, 2003 | EF3 | 77 km | 43.0 mi | 0 |
| Dec 18, 2002 | EF3 | 61 km | 9.8 mi | 1 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (5,604 acres, 2006).
| Year | Name | Acres Burned | Distance |
| 2006 | UNNAMED | 5,604 | 98 km |
| 2006 | FLATSIDE | 5,256 | 97 km |
| 2006 | UNNAMED | 4,553 | 82 km |
| 2013 | UNNAMED | 4,461 | 99 km |
| 2000 | UNNAMED | 3,938 | 37 km |
| 2024 | RX LOWER LAKE WINONA UNIT 07 | 3,373 | 81 km |
| 2022 | HOUSTON | 3,176 | 88 km |
| 2007 | UNNAMED | 3,052 | 90 km |
| 2021 | JWF ROCK CREEK UNIT 2 AND 3 | 2,966 | 93 km |
| 2010 | CAMP | 2,772 | 38 km |
| 2024 | RX LITTLE BEAR 3 | 2,427 | 99 km |
| 2014 | UNNAMED | 2,178 | 86 km |
| 2006 | UNNAMED | 2,066 | 62 km |
| 2014 | UNNAMED | 1,962 | 81 km |
| 2010 | LAKE WINONA 2 | 1,885 | 81 km |
| 2024 | RX LITTLE BEAR 1 | 1,664 | 100 km |
| 2006 | UNNAMED | 1,397 | 97 km |
| 2021 | JWF ROCK CREEK UNIT 1 | 1,327 | 98 km |
| 2007 | UNNAMED | 1,314 | 54 km |
| 2014 | UNNAMED | 1,228 | 83 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 41°F (5°C) | 3.7 in | Coldest |
| February | 45°F (7°C) | 3.7 in | |
| March | 54°F (12°C) | 5.0 in | |
| April | 62°F (17°C) | 5.3 in | Wettest |
| May | 70°F (21°C) | 5.0 in | |
| June | 78°F (26°C) | 3.8 in | |
| July | 81°F (27°C) | 3.7 in | Warmest |
| August | 80°F (27°C) | 3.2 in | Driest |
| September | 74°F (23°C) | 3.6 in | |
| October | 63°F (17°C) | 4.1 in | |
| November | 52°F (11°C) | 5.2 in | |
| December | 44°F (6°C) | 5.0 in |
Keo has a seasonal temperature swing of 41°F / from 41°F in January to 81°F in July. Total annual precipitation is 51.3 inches, with April being the wettest month (5.3") and August the driest (3.2").