Weather & Climate in Somerville, TN

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

Somerville enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winters average 40°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 54.9 inches (wetter than the 38-inch national average). The area receives 1.9 inches of snow annually. Air quality is rated Good with a median AQI of 40. The city sits at an elevation of 469 feet.

Temperature

40°F Jan (5°C) 81°F Jul (27°C)

Annual Average	61.2°F
	13% above US avg
January Average	40°F (5°C)
July Average	81°F (27°C)
Sunny Days	301 days/yr

Geography

Elevation	469 ft (143 m)
Area	12.5 sq mi (32.5 km²)
Population Density	253/sq mi
Coordinates	35.2322°N, 89.3754°W
Timezone	America/Chicago
County	Fayette County County
Nearest Airport	Mc Kellar-Sipes Regional (MKL) 36 miles away

Precipitation & Snow

Annual Rainfall 54.9"

44% above US avg

Snowfall 1.9"

Wettest Month (Apr) 5.51"

Driest Month (Oct) 3.07"

Air Quality

AQI Median	40.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Low
Risk Score	76.0 / 100
Social Vulnerability	62.7 / 100
Community Resilience	50.4 / 100

Hazard Breakdown

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

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

Earthquake History

274 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.2.

May 1, 2005	5 km SSE of Manila, Arkansas	M4.2	97 km	10 km
Feb 10, 2005	3 km NNW of Etowah, Arkansas	M4.1	99 km	15 km
Jun 2, 2005	12 km S of Ridgely, Tennessee	M4.0	103 km	15 km
Apr 30, 2003	1 km N of Blytheville, Arkansas	M4.0	93 km	24 km
Oct 29, 2012	8 km SW of Parkin, Arkansas	M3.9	114 km	21 km
May 16, 2024	6 km S of Ridgely, Tennessee	M3.8	108 km	8 km
Nov 29, 1996	1 km W of Blytheville, Arkansas	M3.8	93 km	19 km
Sep 17, 1997	2 km E of Trumann, Arkansas	M3.8	111 km	0 km
Feb 23, 2013	7 km SW of Trumann, Arkansas	M3.7	116 km	14 km
Apr 24, 2019	12 km NNW of Dyersburg, Tennessee	M3.7	101 km	14 km
Jan 16, 2018	4 km SW of Caruthersville, Missouri	M3.6	107 km	9 km
Oct 15, 2017	6 km SE of Manila, Arkansas	M3.6	95 km	17 km
Apr 2, 2015	1 km WNW of Cooter, Missouri	M3.6	100 km	10 km
Jan 8, 1993	6 km WSW of Gosnell, Arkansas	M3.5	98 km	22 km
Aug 25, 2015	9 km W of Henning, Tennessee	M3.5	56 km	13 km
Sep 9, 2016	9 km NW of Tiptonville, Tennessee	M3.4	137 km	10 km
Aug 29, 1990	9 km WSW of Central, Tennessee	M3.4	66 km	15 km
Apr 28, 1993	8 km SSE of Ridgely, Tennessee	M3.4	107 km	7 km
Nov 6, 2009	6 km NNW of Dyersburg, Tennessee	M3.4	95 km	9 km
Jun 17, 2012	6 km NW of Tiptonville, Tennessee	M3.3	132 km	8 km

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

Tornado History

482 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 220 fatalities, 1,861 injuries.

Date	Rating	Distance	Path	Fatalities
Dec 23, 2015	EF4	77 km	75.1 mi	9
Feb 5, 2008	EF4	68 km	7.6 mi	0
Feb 5, 2008	EF4	99 km	16.2 mi	3
May 4, 2003	EF4	45 km	39.0 mi	11
Jan 17, 1999	EF4	59 km	16.0 mi	6
Mar 1, 1997	EF4	98 km	10.0 mi	0
Mar 1, 1997	EF4	84 km	15.0 mi	1
Mar 1, 1997	EF4	94 km	20.0 mi	0
Apr 19, 1970	EF4	66 km	47.6 mi	4
Apr 3, 1956	EF4	91 km	11.6 mi	3
Mar 21, 1952	EF4	36 km	46.8 mi	38
Mar 21, 1952	EF4	97 km	2.0 mi	4
Mar 21, 1952	EF4	99 km	6.5 mi	17
Mar 21, 1952	EF4	89 km	4.7 mi	2
Mar 21, 1952	EF4	49 km	29.6 mi	16
Mar 31, 2023	EF3	51 km	86.0 mi	9
Mar 31, 2023	EF3	49 km	39.2 mi	1
Dec 10, 2021	EF3	99 km	122.6 mi	0
May 2, 2010	EF3	51 km	29.6 mi	3
Feb 5, 2008	EF3	93 km	7.2 mi	0

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

Tsunami History

1 tsunami recorded within 500 km.

Year	Location	Cause	Max Wave	Deaths	Distance
1811	AR: NE - NEW MADRID EARTHQUAKES	Eruption + Earthquake	—	—	102 km

Source: NOAA/NCEI Historical Tsunami Database.

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	97 km
2014	C-55 CHILLI LAKE	3,555	66 km
2017	UNNAMED	3,152	55 km
2014	C-39 EAST CHEWALLA	3,107	55 km
2017	UNNAMED	3,031	66 km
2022	HOLLY SPRINGS BB 119/90/88	2,955	83 km
2013	UNNAMED	2,848	59 km
2014	C-84 BAGLEY BOTTOMS	2,766	84 km
2016	UNNAMED	2,645	97 km
2013	MIDWAY CEM PRESCRIBED BURN	2,513	82 km
2013	PUSKUS LAKE	2,271	89 km
2017	UNNAMED	2,248	71 km
2022	HOLLY SPRINGS BB 51/52/53	2,182	66 km
2010	COMP 42	2,142	59 km
2017	UNNAMED	2,073	83 km
2022	HOLLY SPRINGS BB10 11 12 14	1,977	52 km
2016	UNNAMED	1,972	73 km
2014	C-109	1,863	96 km
2019	UNNAMED	1,841	95 km
2016	UNNAMED	1,785	59 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	40°F (5°C)	4.1 in	Coldest
February	43°F (6°C)	4.4 in
March	51°F (11°C)	5.4 in
April	60°F (16°C)	5.5 in	Wettest
May	68°F (20°C)	5.2 in
June	76°F (25°C)	3.8 in
July	81°F (27°C)	4.1 in	Warmest
August	78°F (26°C)	3.2 in
September	72°F (22°C)	3.8 in
October	61°F (16°C)	3.1 in	Driest
November	51°F (10°C)	5.0 in
December	42°F (5°C)	5.5 in

Somerville has a seasonal temperature swing of 40°F / from 40°F in January to 81°F in July. Total annual precipitation is 53.0 inches, with April being the wettest month (5.5") and October the driest (3.1").

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