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Weather & Climate in Grantville, GA
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Grantville enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winters average 43°F in January while summers reach 79°F in July. The area gets 304 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 52.5 inches (wetter than the 38-inch national average). The area receives 1.7 inches of snow annually. Air quality is rated Good with a median AQI of 44. The city sits at an elevation of 878 feet.
Temperature
43°F Jan (6°C)
79°F Jul (26°C)
| Annual Average | 61.4°F |
| 14% above US avg | |
| January Average | 43°F (6°C) |
| July Average | 79°F (26°C) |
| Sunny Days | 304 days/yr |
Geography
| Elevation | 878 ft (268 m) |
| Area | 5.6 sq mi (14.5 km²) |
| Population Density | 546/sq mi |
| Coordinates | 33.2371°N, 84.8301°W |
| Timezone | America/New_York |
| County | Coweta County County |
| Nearest Airport | Hartsfield - Jackson Atlanta International (ATL) 36 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 44.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 65.6 / 100 |
| Social Vulnerability | 13.6 / 100 |
| Community Resilience | 58.3 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Low |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
13 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.5.
| Jan 18, 2000 | 11 km SSE of Gray, Georgia | M3.5 | 132 km | 19 km |
| May 6, 2010 | 11 km ENE of Whitesboro, Alabama | M3.2 | 148 km | 5 km |
| Feb 17, 1991 | 6 km N of Goldville, Alabama | M2.9 | 88 km | 1 km |
| Apr 15, 2001 | 9 km E of Bon Air, Alabama | M2.6 | 131 km | 5 km |
| Apr 15, 2001 | 12 km SW of Talladega, Alabama | M2.6 | 129 km | 11 km |
| Jun 2, 2017 | 7 km NW of Broomtown, Alabama | M2.6 | 148 km | 13 km |
| Sep 12, 2022 | 13 km NE of Jackson, Georgia | M2.5 | 92 km | 1 km |
| Mar 17, 2009 | 5 km W of Ragland, Alabama | M2.5 | 140 km | 8 km |
| Oct 6, 2003 | 11 km SW of Talladega, Alabama | M2.5 | 129 km | 0 km |
| Jan 4, 2008 | 14 km N of Hollins, Alabama | M2.5 | 120 km | 0 km |
| May 11, 1998 | 2 km SSE of Glencoe, Alabama | M2.5 | 127 km | 2 km |
| Jan 28, 1998 | 7 km NNW of Broomtown, Alabama | M2.5 | 148 km | 0 km |
| Aug 18, 1993 | 2 km NNW of Lakeview Estates, Georgia | M2.5 | 91 km | 0 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
4 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Helene | Category 2 | 109 mph | 259 km |
| 2018 | Michael | Category 3 | 92 mph | 154 km |
| 1995 | Opal | Category 1 | 92 mph | 201 km |
| 1985 | Kate | Category 1 | 75 mph | 230 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
527 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 43 fatalities, 1,542 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Mar 25, 2021 | EF4 | 34 km | 38.6 mi | 0 |
| Nov 22, 1992 | EF4 | 77 km | 20.0 mi | 0 |
| Mar 26, 2023 | EF3 | 50 km | 21.5 mi | 0 |
| Jan 12, 2023 | EF3 | 34 km | 31.2 mi | 0 |
| Apr 13, 2020 | EF3 | 63 km | 16.6 mi | 0 |
| Apr 13, 2020 | EF3 | 78 km | 5.3 mi | 0 |
| Apr 29, 2014 | EF3 | 94 km | 11.5 mi | 0 |
| Mar 2, 2012 | EF3 | 82 km | 29.0 mi | 0 |
| Apr 27, 2011 | EF3 | 25 km | 21.7 mi | 2 |
| Apr 27, 2011 | EF3 | 55 km | 30.8 mi | 2 |
| Mar 15, 2008 | EF3 | 98 km | 16.9 mi | 2 |
| Feb 26, 2008 | EF3 | 56 km | 7.2 mi | 0 |
| Jan 2, 2006 | EF3 | 37 km | 3.0 mi | 0 |
| Feb 21, 1993 | EF3 | 78 km | 8.0 mi | 0 |
| Feb 21, 1993 | EF3 | 94 km | 9.0 mi | 1 |
| Mar 29, 1991 | EF3 | 68 km | 5.0 mi | 0 |
| Mar 5, 1989 | EF3 | 5 km | 14.0 mi | 0 |
| Mar 24, 1975 | EF3 | 66 km | 14.8 mi | 3 |
| Jan 26, 1974 | EF3 | 61 km | 21.3 mi | 1 |
| May 27, 1973 | EF3 | 62 km | 0.5 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (7,740 acres, 2014).
| Year | Name | Acres Burned | Distance |
| 2014 | UNNAMED | 7,740 | 94 km |
| 2013 | UNNAMED | 6,320 | 87 km |
| 2016 | UNNAMED | 5,844 | 92 km |
| 2004 | UNNAMED | 5,397 | 86 km |
| 2014 | HOUCK CREEK | 3,857 | 88 km |
| 2022 | SC 540C/CHOCCOLOCCO | 3,750 | 94 km |
| 2020 | SC WEST END C AND D | 3,538 | 95 km |
| 2010 | UPPER SHOAL | 3,512 | 89 km |
| 2008 | UNNAMED | 3,410 | 92 km |
| 1998 | CHEAHA WILDERNESS | 3,299 | 97 km |
| 2018 | HOUCK CREEK | 3,188 | 90 km |
| 2010 | BANKHEAD I | 3,027 | 89 km |
| 2005 | UNNAMED | 2,992 | 94 km |
| 2013 | UNNAMED | 2,777 | 89 km |
| 2019 | TL BUNN | 2,688 | 99 km |
| 2019 | 540C | 2,622 | 93 km |
| 2013 | UNNAMED | 2,611 | 90 km |
| 2006 | UNNAMED | 2,584 | 92 km |
| 2015 | UNNAMED | 2,568 | 88 km |
| 2021 | SC RATTLESNAKE M | 2,568 | 94 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 43°F (6°C) | 5.1 in | Coldest |
| February | 46°F (8°C) | 5.2 in | |
| March | 54°F (12°C) | 6.0 in | Wettest |
| April | 61°F (16°C) | 4.5 in | |
| May | 68°F (20°C) | 4.2 in | |
| June | 75°F (24°C) | 4.0 in | |
| July | 79°F (26°C) | 4.9 in | Warmest |
| August | 78°F (25°C) | 3.8 in | |
| September | 73°F (23°C) | 3.3 in | |
| October | 62°F (17°C) | 3.0 in | Driest |
| November | 53°F (12°C) | 3.9 in | |
| December | 46°F (8°C) | 4.7 in |
Grantville has a seasonal temperature swing of 36°F / from 43°F in January to 79°F in July. Total annual precipitation is 52.5 inches, with March being the wettest month (6.0") and October the driest (3.0").