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Weather & Climate in Big Rock, TN
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Big Rock enjoys a temperate climate with an average annual temperature of 58°F (15°C). Winters average 36°F in January while summers reach 79°F in July. The area gets 299 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 51.8 inches (wetter than the 38-inch national average). The area receives 5.2 inches of snow annually. Air quality is rated Good with a median AQI of 40. The city sits at an elevation of 600 feet.
Temperature
36°F Jan (2°C)
79°F Jul (26°C)
| Annual Average | 58.3°F |
| 8% above US avg | |
| January Average | 36°F (2°C) |
| July Average | 79°F (26°C) |
| Sunny Days | 299 days/yr |
Geography
| Elevation | 600 ft (183 m) |
| Area | 1.7 sq mi (4.5 km²) |
| Population Density | 94/sq mi |
| Coordinates | 36.5766°N, 87.7579°W |
| Timezone | America/Chicago |
| County | Stewart County County |
| Nearest Airport | Barkley Regional (PAH) 65 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 40.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 29.4 / 100 |
| Social Vulnerability | 79.3 / 100 |
| Community Resilience | 15.4 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
74 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.0.
| Jun 6, 2003 | 1 km NE of Bardwell, Kentucky | M4.0 | 115 km | 3 km |
| Mar 2, 2010 | 2 km ENE of East Prairie, Missouri | M3.7 | 144 km | 8 km |
| Jun 20, 2005 | 4 km WSW of Blandville, Kentucky | M3.6 | 118 km | 19 km |
| Mar 15, 2017 | 9 km ESE of Wyatt, Missouri | M3.6 | 126 km | 8 km |
| May 1, 2016 | 5 km SE of New Grand Chain, Illinois | M3.5 | 130 km | 16 km |
| Jul 16, 2004 | 6 km SE of Wyatt, Missouri | M3.5 | 130 km | 4 km |
| Sep 26, 1994 | 4 km ENE of Blandville, Kentucky | M3.4 | 112 km | 13 km |
| Aug 12, 2013 | 7 km S of Hornbeak, Tennessee | M3.3 | 143 km | 4 km |
| May 16, 2017 | 9 km ESE of Wyatt, Missouri | M3.3 | 126 km | 9 km |
| Apr 8, 1998 | 2 km NNW of Blandville, Kentucky | M3.2 | 117 km | 13 km |
| Mar 19, 2017 | 9 km ESE of Wyatt, Missouri | M3.2 | 127 km | 12 km |
| Nov 6, 1994 | 11 km WSW of Trenton, Tennessee | M3.1 | 136 km | 11 km |
| Aug 26, 2003 | 5 km WSW of Brookport, Illinois | M3.1 | 101 km | 2 km |
| May 3, 2011 | 3 km WSW of Wickliffe, Kentucky | M3.1 | 129 km | 0 km |
| Aug 7, 1990 | 5 km SSW of Wyatt, Missouri | M3.1 | 136 km | 7 km |
| May 30, 2023 | 6 km W of Calhoun, Kentucky | M3.0 | 114 km | 0 km |
| Sep 27, 2019 | 6 km NE of Pinhook, Missouri | M3.0 | 135 km | 17 km |
| Mar 1, 2006 | 2 km N of Buncombe, Illinois | M3.0 | 149 km | 6 km |
| Jun 27, 2000 | 6 km S of Joppa, Illinois | M2.9 | 115 km | 12 km |
| May 11, 1998 | 5 km NW of Bardwell, Kentucky | M2.9 | 121 km | 6 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
517 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 51 fatalities, 1,184 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Nov 15, 2005 | EF4 | 78 km | 15.0 mi | 0 |
| Apr 27, 1970 | EF4 | 58 km | 42.6 mi | 3 |
| Apr 3, 1968 | EF4 | 49 km | 50.6 mi | 2 |
| Mar 4, 1964 | EF4 | 63 km | 18.5 mi | 3 |
| May 26, 2024 | EF3 | 66 km | 34.1 mi | 1 |
| Dec 9, 2023 | EF3 | 26 km | 47.2 mi | 4 |
| Dec 11, 2021 | EF3 | 72 km | 28.0 mi | 0 |
| Mar 3, 2020 | EF3 | 85 km | 60.1 mi | 5 |
| May 10, 2016 | EF3 | 91 km | 19.0 mi | 0 |
| Nov 17, 2013 | EF3 | 68 km | 8.2 mi | 0 |
| Apr 26, 2011 | EF3 | 24 km | 2.6 mi | 0 |
| Apr 10, 2009 | EF3 | 65 km | 2.0 mi | 0 |
| Feb 5, 2008 | EF3 | 80 km | 18.1 mi | 3 |
| Apr 7, 2006 | EF3 | 93 km | 22.7 mi | 7 |
| Apr 7, 2006 | EF3 | 54 km | 18.8 mi | 0 |
| Apr 2, 2006 | EF3 | 38 km | 29.7 mi | 0 |
| Nov 15, 2005 | EF3 | 79 km | 44.0 mi | 1 |
| Nov 6, 2005 | EF3 | 97 km | 11.2 mi | 0 |
| May 11, 2003 | EF3 | 99 km | 1.0 mi | 0 |
| May 4, 2003 | EF3 | 40 km | 11.5 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
13 wildfires (100+ acres) recorded within 100 km. Largest: DEVILS BACKBONE RX (3,215 acres, 2010).
| Year | Name | Acres Burned | Distance |
| 2010 | DEVILS BACKBONE RX | 3,215 | 22 km |
| 2010 | FRANKLIN CREEK RX | 2,828 | 39 km |
| 2019 | UNNAMED | 2,282 | 39 km |
| 2014 | UNNAMED | 1,837 | 21 km |
| 2006 | UNNAMED | 1,493 | 29 km |
| 2024 | LBL - NWDA UNIT 3 RX | 1,187 | 43 km |
| 2013 | UNNAMED | 1,167 | 56 km |
| 2010 | BUFFALO TRAIL (NORTH) RX | 959 | 21 km |
| 2020 | UNNAMED | 917 | 54 km |
| 2006 | CLAY CREEK | 896 | 23 km |
| 2024 | DEAN EAST RX | 753 | 97 km |
| 2020 | UNNAMED | 750 | 57 km |
| 2010 | SCHOOLHOUSE RX | 722 | 32 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 36°F (2°C) | 3.9 in | Coldest |
| February | 38°F (4°C) | 4.4 in | |
| March | 48°F (9°C) | 5.2 in | Wettest |
| April | 57°F (14°C) | 4.6 in | |
| May | 65°F (18°C) | 4.9 in | |
| June | 73°F (23°C) | 4.1 in | |
| July | 79°F (26°C) | 4.2 in | Warmest |
| August | 76°F (25°C) | 3.5 in | |
| September | 70°F (21°C) | 3.7 in | |
| October | 58°F (15°C) | 3.4 in | Driest |
| November | 48°F (9°C) | 4.7 in | |
| December | 39°F (4°C) | 5.1 in |
Big Rock has a seasonal temperature swing of 44°F / from 36°F in January to 79°F in July. Total annual precipitation is 51.7 inches, with March being the wettest month (5.2") and October the driest (3.4").