Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Summersville enjoys a temperate climate with an average annual temperature of 57°F (14°C). Winters average 35°F in January while summers reach 78°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 51.7 inches (wetter than the 38-inch national average). Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 813 feet.
Temperature
35°F Jan (2°C)78°F Jul (25°C)
Annual Average
56.9°F
5% above US avg
January Average
35°F (2°C)
July Average
78°F (25°C)
Sunny Days
299 days/yr
Geography
Elevation
813 ft (248 m)
Area
2.9 sq mi (7.5 km²)
Population Density
125/sq mi
Coordinates
37.3261°N, 85.5368°W
Timezone
America/New_York
County
Green County County
Nearest Airport
Lake Cumberland Regional (SME) 54 miles away
Precipitation & Snow
Annual Rainfall51.7"
36% above US avg
Wettest Month (May)5.31"
Driest Month (Oct)3.15"
Air Quality
AQI Median
41.0
Rating
Good
Natural Hazard Risk
Overall Risk
Very Low
Risk Score
14.0 / 100
Social Vulnerability
77.6 / 100
Community Resilience
46.5 / 100
Hazard Breakdown
Tornado
Relatively Low
Hurricane
Very Low
Earthquake
Very Low
Wildfire
Very Low
Flood
Very Low
Hail
Relatively Low
Strong Wind
Relatively Low
Heat Wave
Very Low
Winter Weather
Relatively Low
Lightning
Relatively Low
Ice Storm
Relatively Low
Drought
Relatively Low
Cold Wave
Relatively Low
Landslide
Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
17 earthquakes (M2.5+) recorded within 150 km since 1990.
Strongest on record: M3.9.
Jan 24, 1990
6 km WNW of Alton, Indiana
M3.9
123 km
10 km
Jan 27, 1990
6 km N of Alton, Indiana
M3.8
124 km
5 km
Sep 17, 2004
8 km ESE of Corbin, Kentucky
M3.7
143 km
1 km
Jan 27, 2009
4 km NE of Williamsburg, Kentucky
M3.2
139 km
26 km
Aug 20, 2015
6 km SE of Lawrenceburg, Kentucky
M2.8
97 km
34 km
Mar 8, 2015
1 km SE of Pleasant View, Kentucky
M2.8
146 km
9 km
May 11, 2025
11 km SE of High Bridge, Kentucky
M2.8
95 km
30 km
Mar 9, 1990
8 km ENE of New Amsterdam, Indiana
M2.7
107 km
5 km
Mar 21, 1990
1 km W of Spring Mill, Kentucky
M2.7
91 km
4 km
Jan 12, 2023
4 km E of Burgin, Kentucky
M2.6
86 km
35 km
Aug 4, 2023
11 km ENE of Lancaster, Kentucky
M2.6
102 km
17 km
May 11, 2019
5 km ENE of Pleasant View, Kentucky
M2.6
148 km
25 km
Jan 29, 1990
11 km S of Paoli, Indiana
M2.6
149 km
0 km
Jan 8, 1995
Kentucky
M2.6
148 km
30 km
Mar 22, 1990
9 km E of Rochester, Kentucky
M2.6
112 km
5 km
Jan 21, 2018
8 km SSE of High Bridge, Kentucky
M2.6
91 km
11 km
Mar 8, 1990
4 km SW of Oak Grove, Kentucky
M2.5
111 km
5 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
393 tornadoes (EF0+) recorded within 100 km since 1950.
Strongest on record: EF5. Total: 82 fatalities, 1,469 injuries.
Date
Rating
Distance
Path
Fatalities
Apr 3, 1974
EF5
98 km
32.0 mi
31
May 28, 1996
EF4
94 km
30.0 mi
0
Apr 3, 1974
EF4
92 km
14.0 mi
0
Apr 3, 1974
EF4
99 km
18.5 mi
3
Apr 3, 1974
EF4
90 km
79.4 mi
4
Apr 3, 1974
EF4
98 km
11.0 mi
5
Apr 3, 1974
EF4
77 km
38.4 mi
10
Apr 3, 1974
EF4
54 km
37.9 mi
3
Apr 3, 1974
EF4
13 km
20.2 mi
0
Apr 27, 1971
EF4
50 km
13.0 mi
2
Apr 27, 1971
EF4
21 km
14.1 mi
6
Dec 11, 2021
EF3
13 km
14.5 mi
1
Feb 6, 2008
EF3
92 km
9.4 mi
4
May 23, 2000
EF3
71 km
6.0 mi
0
Apr 16, 1998
EF3
94 km
8.6 mi
0
Apr 16, 1998
EF3
25 km
20.0 mi
0
Mar 28, 1997
EF3
52 km
15.0 mi
0
Mar 28, 1997
EF3
24 km
2.0 mi
0
Mar 28, 1997
EF3
34 km
9.0 mi
1
Apr 20, 1986
EF3
57 km
3.0 mi
0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
16 wildfires (100+ acres) recorded within 100 km.
Largest: FLOATING MILL HOLLOW (2,422 acres, 2010).
Year
Name
Acres Burned
Distance
2010
FLOATING MILL HOLLOW
2,422
51 km
2008
BROOKS KNOB
2,225
61 km
2012
FY2012 CRYSTAL CAVE BROADCAST BURN
2,221
48 km
2010
JOPPA CHURCH
2,037
55 km
2004
JIM LEE
1,770
54 km
2009
TEMPLE HILL
1,628
61 km
2009
JIM LEE
1,613
53 km
2007
Big Woods
1,500
47 km
2008
GOBLIN KNOB
1,445
50 km
2000
UNNAMED
1,083
54 km
2001
UNNAMED
848
54 km
2000
UNNAMED
719
100 km
2007
DENNISON FERRY RX
655
46 km
2000
UNNAMED
641
68 km
2022
SAND MINE
610
93 km
2005
UNNAMED
576
48 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
35°F (2°C)
3.8 in
Coldest
February
38°F (3°C)
4.2 in
March
47°F (8°C)
5.0 in
April
56°F (13°C)
4.4 in
May
65°F (18°C)
5.3 in
Wettest
June
73°F (23°C)
4.5 in
July
78°F (25°C)
5.0 in
Warmest
August
75°F (24°C)
3.9 in
September
69°F (21°C)
4.1 in
October
57°F (14°C)
3.2 in
Driest
November
47°F (8°C)
4.3 in
December
38°F (4°C)
4.9 in
Summersville has a seasonal temperature swing of 43°F / from 35°F in January to 78°F in July. Total annual precipitation is 52.4 inches, with May being the wettest month (5.3") and October the driest (3.2").