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Weather & Climate in Grannis, AR
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Grannis enjoys a temperate climate with an average annual temperature of 62°F (17°C). Winters average 42°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 55.0 inches (wetter than the 38-inch national average). The area receives 2.5 inches of snow annually. Air quality is rated Good with a median AQI of 43. The city sits at an elevation of 908 feet.
Temperature
42°F Jan (5°C)
81°F Jul (27°C)
| Annual Average | 62.1°F |
| 15% above US avg | |
| January Average | 42°F (5°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 301 days/yr |
Geography
| Elevation | 908 ft (277 m) |
| Area | 8.1 sq mi (21.0 km²) |
| Population Density | 64/sq mi |
| Coordinates | 34.2402°N, 94.3220°W |
| Timezone | America/Chicago |
| County | Polk County County |
| Nearest Airport | Texarkana Regional-Webb Field (TXK) 54 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 46.1 / 100 |
| Social Vulnerability | 84.0 / 100 |
| Community Resilience | 11.6 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Relatively Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively High |
| Drought | No Rating |
| Cold Wave | Relatively Low |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
69 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.1.
| Apr 3, 2012 | 8 km SSW of Pittsburg, Oklahoma | M4.1 | 149 km | 5 km |
| Aug 24, 2021 | 1 km S of Quinton, Oklahoma | M3.7 | 136 km | 7 km |
| Aug 18, 2019 | 1 km ENE of Quinton, Oklahoma | M3.7 | 136 km | 6 km |
| Mar 16, 1997 | 6 km SSE of Amity, Arkansas | M3.4 | 82 km | 5 km |
| Aug 22, 2021 | 3 km ESE of Quinton, Oklahoma | M3.4 | 134 km | 7 km |
| Jul 22, 2021 | 2 km E of Quinton, Oklahoma | M3.3 | 135 km | 8 km |
| Feb 7, 2020 | 2 km SSW of Quinton, Oklahoma | M3.2 | 136 km | 6 km |
| Feb 7, 2020 | 3 km SSW of Quinton, Oklahoma | M3.2 | 137 km | 6 km |
| Aug 4, 2001 | 16 km SW of Lake Hamilton, Arkansas | M3.2 | 100 km | 0 km |
| Aug 12, 2019 | 1 km NE of Quinton, Oklahoma | M3.2 | 137 km | 5 km |
| Jun 3, 2022 | 10 km W of Quinton, Oklahoma | M3.2 | 145 km | 13 km |
| Mar 14, 2022 | 12 km E of Crowder, Oklahoma | M3.1 | 147 km | 8 km |
| Apr 1, 2020 | 2 km NE of Quinton, Oklahoma | M3.1 | 138 km | 9 km |
| Apr 22, 2005 | 17 km N of Swink, Oklahoma | M3.0 | 80 km | 5 km |
| Jul 28, 1990 | 18 km W of Mountain Pine, Arkansas | M2.9 | 96 km | 4 km |
| Feb 3, 2021 | 1 km SW of Quinton, Oklahoma | M2.9 | 137 km | 7 km |
| Sep 21, 2019 | 2 km NNE of Quinton, Oklahoma | M2.9 | 138 km | 7 km |
| Aug 14, 2024 | 13 km WSW of Quinton, Oklahoma | M2.9 | 143 km | 8 km |
| May 8, 2022 | 13 km WSW of Quinton, Oklahoma | M2.9 | 145 km | 7 km |
| Aug 12, 2021 | 2 km E of Quinton, Oklahoma | M2.8 | 136 km | 7 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
1 hurricane (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 1.
| Year | Name | Category | Max Wind | Closest |
| 2020 | Laura | Category 1 | — | 274 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
396 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 49 fatalities, 492 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Mar 1, 1997 | EF4 | 99 km | 27.0 mi | 6 |
| Apr 2, 1982 | EF4 | 35 km | 45.0 mi | 3 |
| Mar 26, 1976 | EF4 | 91 km | 10.7 mi | 1 |
| Mar 12, 1971 | EF4 | 86 km | 5.1 mi | 1 |
| May 5, 1961 | EF4 | 85 km | 26.4 mi | 16 |
| Mar 21, 1952 | EF4 | 37 km | 13.0 mi | 7 |
| Apr 9, 2009 | EF3 | 29 km | 37.2 mi | 0 |
| Apr 9, 2009 | EF3 | 34 km | 14.8 mi | 3 |
| Mar 5, 1999 | EF3 | 62 km | 13.0 mi | 0 |
| Mar 1, 1997 | EF3 | 93 km | 18.0 mi | 0 |
| May 27, 1996 | EF3 | 94 km | 26.0 mi | 0 |
| Nov 22, 1983 | EF3 | 86 km | 3.0 mi | 0 |
| Dec 23, 1982 | EF3 | 38 km | 20.0 mi | 0 |
| Apr 2, 1982 | EF3 | 83 km | 18.0 mi | 5 |
| Apr 2, 1982 | EF3 | 94 km | 52.0 mi | 1 |
| Nov 1, 1977 | EF3 | 86 km | 5.9 mi | 0 |
| Oct 22, 1972 | EF3 | 60 km | 1.5 mi | 0 |
| May 10, 1971 | EF3 | 61 km | 20.3 mi | 0 |
| Apr 3, 1956 | EF3 | 83 km | 2.0 mi | 0 |
| Apr 30, 1954 | EF3 | 98 km | 111.6 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (10,593 acres, 2007).
| Year | Name | Acres Burned | Distance |
| 2007 | UNNAMED | 10,593 | 65 km |
| 2003 | UNNAMED | 9,749 | 81 km |
| 2007 | BRANTLEY CABIN | 9,666 | 28 km |
| 2016 | UNNAMED | 9,483 | 79 km |
| 2013 | UNNAMED | 9,385 | 88 km |
| 2021 | BILLY CREEK | 9,236 | 61 km |
| 2010 | W72 BLOOD SPRINGS | 8,674 | 58 km |
| 2006 | NO MANS LAND | 8,250 | 47 km |
| 2019 | UNNAMED | 8,217 | 29 km |
| 2014 | UNNAMED | 7,945 | 92 km |
| 2003 | UNNAMED | 7,347 | 90 km |
| 2023 | RX CEDAR MTN | 7,175 | 47 km |
| 2007 | UNNAMED | 6,804 | 83 km |
| 2022 | RIVER ROAD | 6,722 | 75 km |
| 2016 | UNNAMED | 6,409 | 30 km |
| 2020 | ASHFORD WELCH | 5,976 | 27 km |
| 2010 | WEST GRAPEVINE RX | 5,878 | 61 km |
| 2013 | UNNAMED | 5,759 | 61 km |
| 2020 | NEWMAN 489 | 5,662 | 82 km |
| 2021 | JACK PIGEON | 5,643 | 97 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 42°F (5°C) | 3.1 in | Coldest |
| February | 44°F (7°C) | 3.8 in | |
| March | 52°F (11°C) | 5.6 in | |
| April | 60°F (15°C) | 5.0 in | |
| May | 68°F (20°C) | 6.7 in | Wettest |
| June | 75°F (24°C) | 4.7 in | |
| July | 81°F (27°C) | 4.4 in | Warmest |
| August | 79°F (26°C) | 2.9 in | Driest |
| September | 73°F (23°C) | 4.6 in | |
| October | 62°F (17°C) | 5.0 in | |
| November | 51°F (10°C) | 5.0 in | |
| December | 43°F (6°C) | 4.7 in |
Grannis has a seasonal temperature swing of 39°F / from 42°F in January to 81°F in July. Total annual precipitation is 55.3 inches, with May being the wettest month (6.7") and August the driest (2.9").