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Weather & Climate in Jamestown, SC

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

Jamestown enjoys a temperate climate with an average annual temperature of 65°F (18°C). Winters average 47°F in January while summers reach 82°F in July. The area gets 304 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 51.9 inches (wetter than the 38-inch national average). Air quality is rated Good with a median AQI of 43. The city sits at an elevation of 37 feet.

Temperature

47°F Jan (8°C) 82°F Jul (28°C)
Annual Average64.6°F
20% above US avg
January Average47°F (8°C)
July Average82°F (28°C)
Sunny Days304 days/yr

Geography

Elevation37 ft (11 m)
Area0.6 sq mi (1.6 km²)
Population Density115/sq mi
Coordinates33.2859°N, 79.6946°W
TimezoneAmerica/New_York
CountyBerkeley County County
Nearest AirportCharleston Afb/International (CHS)
33 miles away

Precipitation & Snow

Annual Rainfall 51.9"
36% above US avg
Wettest Month (Aug) 6.46"
Driest Month (Nov) 2.64"

Air Quality

AQI Median43.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively High
Risk Score94.8 / 100
Social Vulnerability14.8 / 100
Community Resilience62.8 / 100

Hazard Breakdown

Tornado Relatively Moderate
Hurricane Very High
Earthquake Relatively Moderate
Wildfire Relatively Moderate
Flood Relatively Moderate
Hail Relatively Low
Strong Wind Relatively Moderate
Heat Wave Relatively Low
Winter Weather Relatively Moderate
Lightning Relatively High
Ice Storm Relatively High
Drought Very Low
Cold Wave Relatively Moderate
Landslide Very Low
Coastal Flood Relatively Moderate
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

44 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.1.

Aug 21, 1992 1 km SSE of Centerville, South Carolina M4.1 55 km 7 km
Apr 17, 1995 0 km NNW of Centerville, South Carolina M3.9 55 km 8 km
Jun 29, 2022 6 km E of Elgin, South Carolina M3.6 137 km 3 km
Nov 8, 2002 24 km SSE of Kiawah Island, South Carolina M3.5 99 km 4 km
Jun 29, 2022 6 km E of Elgin, South Carolina M3.5 137 km 3 km
Nov 13, 1990 4 km SSW of Ladson, South Carolina M3.5 56 km 3 km
Jun 26, 2022 6 km E of Elgin, South Carolina M3.4 137 km 4 km
May 9, 2022 5 km ESE of Elgin, South Carolina M3.3 136 km 4 km
Aug 29, 2009 2 km NE of Summerville, South Carolina M3.2 52 km 5 km
May 5, 2003 4 km NNW of Summerville, South Carolina M3.1 53 km 11 km
Jul 20, 2004 7 km WSW of Centerville, South Carolina M3.1 62 km 10 km
Mar 19, 2014 0 km WNW of Centerville, South Carolina M3.0 55 km 7 km
Mar 29, 1999 3 km NNW of Sangaree, South Carolina M3.0 48 km 11 km
Jul 26, 2002 4 km NNW of Summerville, South Carolina M3.0 53 km 10 km
Jul 7, 2002 1 km NW of Sangaree, South Carolina M2.9 49 km 11 km
Mar 2, 2003 7 km S of Centerville, South Carolina M2.9 59 km 7 km
Feb 7, 1990 9 km S of Centerville, South Carolina M2.9 61 km 9 km
Jan 29, 1994 12 km NNE of Alcolu, South Carolina M2.9 76 km 2 km
Jul 16, 2002 5 km SSW of Ladson, South Carolina M2.8 57 km 7 km
May 12, 2010 6 km SSW of Ladson, South Carolina M2.8 57 km 1 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Hurricane History

20 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.

Year Name Category Max Wind Closest
2022 Ian Category 1 86 mph 46 km
2020 Isaias Category 1 92 mph 77 km
2019 Dorian Category 3 115 mph 99 km
2018 Florence Category 2 104 mph 144 km
2016 Matthew Category 2 109 mph 37 km
2014 Arthur Category 2 98 mph 137 km
2011 Irene Category 2 92 mph 269 km
2005 Ophelia Category 1 86 mph 162 km
2004 Charley Category 1 81 mph 42 km
2004 Gaston Category 1 75 mph 33 km
2004 Alex Category 1 81 mph 188 km
1999 Floyd Category 2 109 mph 134 km
1999 Dennis Category 2 104 mph 194 km
1999 Irene Category 1 92 mph 137 km
1998 Bonnie Category 3 115 mph 176 km
1996 Fran Category 3 115 mph 164 km
1996 Bertha Category 2 104 mph 141 km
1989 Hugo Category 4 138 mph 55 km
1985 Bob Category 1 75 mph 142 km
1984 Diana Category 4 132 mph 143 km
Source: NOAA IBTrACS (Category 1+, 1980–2026).

Tornado History

308 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 10 fatalities, 193 injuries.

Date Rating Distance Path Fatalities
Apr 13, 2020 EF3 30 km 5.7 mi 0
Apr 15, 2007 EF3 93 km 19.0 mi 1
Nov 24, 1967 EF3 84 km 3.3 mi 0
Sep 11, 1960 EF3 58 km 8.8 mi 0
Apr 5, 2022 EF2 67 km 2.8 mi 0
Apr 13, 2020 EF2 61 km 4.6 mi 0
Apr 19, 2019 EF2 56 km 2.9 mi 0
Sep 24, 2015 EF2 71 km 6.9 mi 0
May 11, 2008 EF2 81 km 12.0 mi 0
Sep 7, 2004 EF2 92 km 4.0 mi 0
Oct 11, 2002 EF2 38 km 1.2 mi 0
Jul 6, 2001 EF2 89 km 4.0 mi 0
Sep 3, 1998 EF2 31 km 7.0 mi 0
May 10, 1998 EF2 54 km 10.5 mi 1
Mar 8, 1998 EF2 71 km 5.0 mi 0
Sep 16, 1996 EF2 74 km 1.5 mi 0
Nov 7, 1995 EF2 85 km 5.0 mi 0
Nov 7, 1995 EF2 97 km 1.5 mi 0
Aug 28, 1988 EF2 68 km 0.8 mi 1
Jun 2, 1985 EF2 94 km 5.0 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
1886 CHARLESTON, SC Earthquake 52 km
Source: NOAA/NCEI Historical Tsunami Database.

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: HIGHWAY 31 (17,004 acres, 2009).

Year Name Acres Burned Distance
2009 HIGHWAY 31 17,004 98 km
2004 UNNAMED 13,429 22 km
2005 UNNAMED 11,023 20 km
2005 UNNAMED 8,560 19 km
2009 UNNAMED 8,439 19 km
1997 MURRELL 5,126 23 km
2017 UNNAMED 4,893 12 km
2014 UNNAMED 4,890 9 km
2008 UNNAMED 4,852 26 km
2017 UNNAMED 4,813 22 km
2016 UNNAMED 4,336 18 km
2008 UNNAMED 3,955 19 km
2010 UNNAMED 3,759 39 km
2003 LITTLE HELLHOLE 3,724 20 km
2009 UNNAMED 3,641 22 km
2001 UNNAMED 3,481 91 km
2015 UNNAMED 3,367 18 km
2017 UNNAMED 3,217 9 km
1997 UNNAMED 3,111 54 km
2008 UNNAMED 3,104 21 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 47°F (8°C) 4.0 in Coldest
February 49°F (10°C) 3.6 in
March 56°F (14°C) 4.3 in
April 63°F (17°C) 2.8 in
May 70°F (21°C) 3.9 in
June 77°F (25°C) 5.4 in
July 82°F (28°C) 6.0 in Warmest
August 79°F (26°C) 6.5 in Wettest
September 75°F (24°C) 4.7 in
October 65°F (18°C) 3.4 in
November 57°F (14°C) 2.6 in Driest
December 50°F (10°C) 3.4 in

Jamestown has a seasonal temperature swing of 35°F / from 47°F in January to 82°F in July. Total annual precipitation is 50.5 inches, with August being the wettest month (6.5") and November the driest (2.6").

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