Weather & Climate in Calhoun, TN

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Calhoun enjoys a temperate climate with an average annual temperature of 60°F (15°C). Winters average 40°F in January while summers reach 78°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 57.6 inches (wetter than the 38-inch national average). The area receives 1.1 inches of snow annually. Air quality is rated Good with a median AQI of 40. The city sits at an elevation of 845 feet.

Temperature

40°F Jan (4°C) 78°F Jul (26°C)

Annual Average	59.6°F
	10% above US avg
January Average	40°F (4°C)
July Average	78°F (26°C)
Sunny Days	301 days/yr

Geography

Elevation	845 ft (258 m)
Area	1.2 sq mi (3.0 km²)
Population Density	424/sq mi
Coordinates	35.3018°N, 84.7415°W
Timezone	America/Chicago
County	McMinn County County
Nearest Airport	Mc Ghee Tyson (TYS) 55 miles away

Precipitation & Snow

Annual Rainfall 57.6"

52% above US avg

Snowfall 1.1"

Wettest Month (Mar) 6.10"

Driest Month (Oct) 3.50"

Air Quality

AQI Median	40.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Low
Risk Score	60.2 / 100
Social Vulnerability	59.3 / 100
Community Resilience	37.7 / 100

Hazard Breakdown

Tornado	Relatively Moderate
Hurricane	Very Low
Earthquake	Relatively Low
Wildfire	Very Low
Flood	Relatively Low
Hail	Relatively Low
Strong Wind	Relatively Moderate
Heat Wave	Very Low
Winter Weather	Relatively Low
Lightning	Relatively Moderate
Ice Storm	Relatively Low
Drought	Relatively Low
Cold Wave	Relatively Low
Landslide	Relatively Low

Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

187 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.6.

Apr 29, 2003	8 km S of Valley Head, Alabama	M4.6	121 km	20 km
May 10, 2025	21 km SE of Greenback, Tennessee	M4.1	74 km	25 km
Jan 20, 2020	2 km NE of Fincastle, Tennessee	M3.8	141 km	35 km
Jul 5, 1995	12 km ESE of Tellico Plains, Tennessee	M3.7	53 km	10 km
Jun 17, 1998	9 km SSE of Coalfield, Tennessee	M3.6	78 km	11 km
Jul 19, 1997	12 km E of Cohutta, Georgia	M3.5	39 km	3 km
Jun 19, 2007	10 km ENE of Spencer, Tennessee	M3.5	78 km	1 km
Jun 16, 2006	9 km W of Maggie Valley, North Carolina	M3.4	141 km	1 km
Mar 5, 2019	7 km NE of Maynardville, Tennessee	M3.4	143 km	17 km
Apr 11, 2006	5 km NE of Etowah, Tennessee	M3.3	25 km	20 km
Mar 18, 1995	10 km SE of Dayton, Tennessee	M3.3	23 km	26 km
Aug 31, 2009	2 km NNE of Friendsville, Tennessee	M3.3	77 km	14 km
Apr 20, 2010	4 km SW of Maryville, Tennessee	M3.3	82 km	2 km
Apr 5, 1994	10 km N of Trenton, Georgia	M3.2	78 km	24 km
May 10, 2006	3 km WNW of Madisonville, Tennessee	M3.2	41 km	25 km
Mar 7, 2001	5 km WNW of Decatur, Tennessee	M3.2	27 km	18 km
Jul 26, 2001	11 km N of Sevierville, Tennessee	M3.2	131 km	14 km
Jul 26, 2001	11 km S of New Market, Tennessee	M3.2	133 km	17 km
Mar 21, 2001	7 km ESE of Trenton, Georgia	M3.2	81 km	0 km
Mar 7, 2001	6 km NW of Decatur, Tennessee	M3.2	30 km	7 km

Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

307 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 86 fatalities, 1,237 injuries.

Date	Rating	Distance	Path	Fatalities
Apr 27, 2011	EF4	68 km	14.5 mi	0
Apr 27, 2011	EF4	62 km	40.2 mi	4
Apr 27, 2011	EF4	62 km	48.0 mi	20
Apr 3, 1974	EF4	56 km	24.0 mi	4
Apr 3, 1974	EF4	94 km	29.5 mi	9
May 2, 1953	EF4	25 km	4.2 mi	4
Apr 12, 2020	EF3	62 km	19.3 mi	2
Nov 30, 2016	EF3	21 km	4.6 mi	2
Mar 2, 2012	EF3	43 km	41.0 mi	0
Mar 23, 2011	EF3	61 km	5.8 mi	0
Nov 10, 2002	EF3	82 km	8.3 mi	7
Nov 10, 2002	EF3	74 km	12.2 mi	4
Mar 29, 1997	EF3	22 km	4.0 mi	0
Mar 29, 1997	EF3	60 km	8.0 mi	0
May 18, 1995	EF3	69 km	9.0 mi	0
Apr 15, 1994	EF3	24 km	15.0 mi	1
Feb 21, 1993	EF3	91 km	16.0 mi	0
Feb 21, 1993	EF3	26 km	19.0 mi	0
Feb 21, 1993	EF3	66 km	30.0 mi	1
Feb 6, 1986	EF3	11 km	10.0 mi	0

Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: ROUGH RIDGE (27,610 acres, 2016).

Year	Name	Acres Burned	Distance
2016	ROUGH RIDGE	27,610	45 km
2024	RX - T26 BRUSHY RIDGE	8,324	57 km
2016	MAPLE SPRINGS	7,696	74 km
2024	RX - T10 MILLER RIDGE	5,154	57 km
2003	UNNAMED	4,675	69 km
2024	RX - O63 CHESTNUT MTN	4,570	35 km
2013	BEAVER DAM	4,336	57 km
2001	UNNAMED	4,213	68 km
2021	UNNAMED	3,888	57 km
2021	DUTCH CREEK	3,845	32 km
2019	COW CAMP	3,786	63 km
2000	UNNAMED	3,539	59 km
2014	UNNAMED	3,298	93 km
2019	JACK DAVIS/DOGWOOD SPRINGS RX	3,120	63 km
2016	SR116-DEVONIA	3,077	95 km
2010	COW CAMP-A	2,953	63 km
2022	UNNAMED	2,933	27 km
2016	UNNAMED	2,908	45 km
2023	SMITH MOUNTAIN	2,807	37 km
2000	UNNAMED	2,793	93 km

Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	40°F (4°C)	5.2 in	Coldest
February	42°F (5°C)	4.8 in
March	50°F (10°C)	6.1 in	Wettest
April	58°F (14°C)	4.5 in
May	66°F (19°C)	4.8 in
June	74°F (23°C)	4.0 in
July	78°F (26°C)	4.9 in	Warmest
August	77°F (25°C)	3.9 in
September	71°F (21°C)	4.2 in
October	59°F (15°C)	3.5 in	Driest
November	49°F (9°C)	4.6 in
December	41°F (5°C)	5.3 in

Calhoun has a seasonal temperature swing of 39°F / from 40°F in January to 78°F in July. Total annual precipitation is 55.9 inches, with March being the wettest month (6.1") and October the driest (3.5").

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