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Weather & Climate in Chewalla, TN
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Chewalla enjoys a temperate climate with an average annual temperature of 60°F (16°C). Winters average 39°F in January while summers reach 80°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 59.1 inches (wetter than the 38-inch national average). Air quality is rated Good with a median AQI of 40. The city sits at an elevation of 456 feet.
Temperature
39°F Jan (4°C)
80°F Jul (27°C)
| Annual Average | 60.4°F |
| 12% above US avg | |
| January Average | 39°F (4°C) |
| July Average | 80°F (27°C) |
| Sunny Days | 301 days/yr |
Geography
| Elevation | 456 ft (139 m) |
| Area | 1.3 sq mi (3.5 km²) |
| Population Density | 128/sq mi |
| Coordinates | 35.0209°N, 88.6427°W |
| Timezone | America/Chicago |
| County | McNairy County County |
| Nearest Airport | Mc Kellar-Sipes Regional (MKL) 43 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 40.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 50.5 / 100 |
| Social Vulnerability | 53.4 / 100 |
| Community Resilience | 29.1 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
67 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.0.
| Jun 2, 2005 | 12 km S of Ridgely, Tennessee | M4.0 | 146 km | 15 km |
| Apr 24, 2019 | 12 km NNW of Dyersburg, Tennessee | M3.7 | 143 km | 14 km |
| Aug 25, 2015 | 9 km W of Henning, Tennessee | M3.5 | 118 km | 13 km |
| Apr 28, 1993 | 8 km SSE of Ridgely, Tennessee | M3.4 | 149 km | 7 km |
| Aug 29, 1990 | 9 km WSW of Central, Tennessee | M3.4 | 124 km | 15 km |
| Nov 6, 2009 | 6 km NNW of Dyersburg, Tennessee | M3.4 | 137 km | 9 km |
| May 31, 2022 | 12 km SE of Ridgely, Tennessee | M3.2 | 146 km | 11 km |
| Aug 19, 1994 | 9 km WSW of Gilt Edge, Tennessee | M3.2 | 128 km | 11 km |
| Apr 7, 2014 | 8 km SE of Ridgely, Tennessee | M3.1 | 150 km | 6 km |
| Nov 6, 1994 | 11 km WSW of Trenton, Tennessee | M3.1 | 110 km | 11 km |
| May 10, 2008 | 1 km SSE of Sherman, Mississippi | M3.1 | 77 km | 0 km |
| Aug 7, 2015 | 16 km W of Millington, Tennessee | M3.0 | 136 km | 4 km |
| May 27, 1995 | 11 km SSE of Ridgely, Tennessee | M3.0 | 146 km | 6 km |
| Apr 3, 1992 | 4 km NE of Central, Tennessee | M2.9 | 119 km | 8 km |
| Jun 25, 2014 | 8 km NNW of Dyersburg, Tennessee | M2.9 | 139 km | 10 km |
| Jan 2, 2000 | 4 km SW of Lester, Alabama | M2.9 | 133 km | 13 km |
| Sep 27, 1997 | 9 km SE of Ridgely, Tennessee | M2.9 | 148 km | 10 km |
| Jan 2, 2000 | 4 km SW of Lester, Alabama | M2.9 | 133 km | 10 km |
| Jun 14, 2015 | 8 km SE of Ridgely, Tennessee | M2.8 | 149 km | 8 km |
| Feb 9, 2017 | 9 km NW of Dyersburg, Tennessee | M2.8 | 141 km | 4 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
447 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 128 fatalities, 1,219 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Apr 16, 1998 | EF5 | 61 km | 69.4 mi | 3 |
| Feb 5, 2008 | EF4 | 42 km | 16.2 mi | 3 |
| Feb 5, 2008 | EF4 | 76 km | 7.6 mi | 0 |
| May 4, 2003 | EF4 | 66 km | 39.0 mi | 11 |
| May 5, 1999 | EF4 | 90 km | 6.0 mi | 3 |
| Jan 17, 1999 | EF4 | 66 km | 16.0 mi | 6 |
| Apr 19, 1970 | EF4 | 47 km | 47.6 mi | 4 |
| Apr 3, 1956 | EF4 | 64 km | 11.6 mi | 3 |
| Mar 21, 1952 | EF4 | 96 km | 29.6 mi | 16 |
| Mar 21, 1952 | EF4 | 41 km | 46.8 mi | 38 |
| Mar 31, 2023 | EF3 | 22 km | 86.0 mi | 9 |
| Dec 23, 2015 | EF3 | 63 km | 48.4 mi | 0 |
| Apr 28, 2014 | EF3 | 90 km | 31.0 mi | 0 |
| May 2, 2010 | EF3 | 56 km | 29.6 mi | 3 |
| May 8, 2008 | EF3 | 86 km | 7.6 mi | 0 |
| Feb 5, 2008 | EF3 | 77 km | 31.1 mi | 3 |
| May 4, 2003 | EF3 | 57 km | 21.0 mi | 0 |
| Jan 17, 1999 | EF3 | 94 km | 10.0 mi | 0 |
| Jan 17, 1999 | EF3 | 66 km | 22.0 mi | 0 |
| Mar 1, 1997 | EF3 | 80 km | 30.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: COMP 109 (3,663 acres, 2010).
| Year | Name | Acres Burned | Distance |
| 2010 | COMP 109 | 3,663 | 99 km |
| 2014 | C-55 CHILLI LAKE | 3,555 | 60 km |
| 2017 | UNNAMED | 3,152 | 69 km |
| 2014 | C-39 EAST CHEWALLA | 3,107 | 69 km |
| 2017 | UNNAMED | 3,031 | 59 km |
| 2022 | HOLLY SPRINGS BB 119/90/88 | 2,955 | 92 km |
| 2013 | UNNAMED | 2,848 | 71 km |
| 2014 | C-84 BAGLEY BOTTOMS | 2,766 | 93 km |
| 2016 | UNNAMED | 2,645 | 99 km |
| 2013 | MIDWAY CEM PRESCRIBED BURN | 2,513 | 89 km |
| 2013 | PUSKUS LAKE | 2,271 | 92 km |
| 2017 | UNNAMED | 2,248 | 75 km |
| 2022 | HOLLY SPRINGS BB 51/52/53 | 2,182 | 58 km |
| 2010 | COMP 42 | 2,142 | 71 km |
| 2017 | UNNAMED | 2,073 | 92 km |
| 2022 | HOLLY SPRINGS BB10 11 12 14 | 1,977 | 39 km |
| 2016 | UNNAMED | 1,972 | 73 km |
| 2014 | C-109 | 1,863 | 97 km |
| 2019 | UNNAMED | 1,841 | 96 km |
| 2016 | UNNAMED | 1,785 | 71 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 39°F (4°C) | 4.6 in | Coldest |
| February | 42°F (6°C) | 4.7 in | |
| March | 51°F (11°C) | 6.0 in | Wettest |
| April | 60°F (15°C) | 5.4 in | |
| May | 68°F (20°C) | 5.8 in | |
| June | 75°F (24°C) | 3.9 in | |
| July | 80°F (27°C) | 4.4 in | Warmest |
| August | 78°F (25°C) | 3.1 in | Driest |
| September | 72°F (22°C) | 4.1 in | |
| October | 60°F (16°C) | 3.4 in | |
| November | 50°F (10°C) | 5.6 in | |
| December | 42°F (5°C) | 5.8 in |
Chewalla has a seasonal temperature swing of 41°F / from 39°F in January to 80°F in July. Total annual precipitation is 56.8 inches, with March being the wettest month (6.0") and August the driest (3.1").