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Mount Croghan, SC

Full City Profile · South Carolina · Chesterfield County County

3.2 /5.0
B Good
138 Population 182/sq mi density
$65,833 Median Income $30,704 per capita
$106,300 Home Value $172,816 Zillow
63°F Avg Temperature 310 sunny days/yr
892 Violent Crime/100K 3,567 property/100K
B
Overall
3.2 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.3 / 5.0
$65,833 median income, 1.9% unemployment
A+
Affordability
5.0 / 5.0
$106,300 home value, /mo rent
F
Safety
1.0 / 5.0
892 violent crimes/100K (135% above avg)
C+
Education
2.6 / 5.0
19.6% bachelor's degree or higher
Mount Croghan enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 44°F in January while summers reach 81°F in July. The area gets 310 sunny days per year. Annual precipitation totals 48.2 inches. Air quality is rated Good with a median AQI of 43.

Temperature

44°F Jan (6°C) 81°F Jul (27°C)
Annual Average62.5°F
16% above US avg
January Average44°F (6°C)
July Average81°F (27°C)
Sunny Days310 days/yr

Geography

Elevation443 ft (135 m)
Area0.8 sq mi (2.0 km²)
Population Density182/sq mi
Coordinates34.7697°N, 80.2264°W
TimezoneAmerica/New_York
CountyChesterfield County County
Nearest AirportHartsville Regional (HVS)
26 miles away

Precipitation & Snow

Annual Rainfall 48.2"
27% above US avg
Wettest Month (Jul) 5.04"
Driest Month (Apr) 2.87"

Air Quality

AQI Median43.0
RatingGood

Air Pollutants (EPA 2023)

Ozone (O₃)0.0419 ppm
PM2.5 (Fine Particles)7.8 μg/m³

Natural Hazard Risk

Overall RiskRelatively Low
Risk Score74.0 / 100
Social Vulnerability83.3 / 100
Community Resilience19.8 / 100

Hazard Breakdown

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

Earthquake History

21 earthquakes (M2.5+) within 150 km since 1990. Strongest: M3.9. Most recent: M2.6 on Apr 26, 2025.

Apr 13, 1998 9 km S of Kershaw, South Carolina M3.9 48 km
Jun 29, 2022 6 km E of Elgin, South Carolina M3.6 81 km
Jun 29, 2022 6 km E of Elgin, South Carolina M3.5 81 km
Jun 26, 2022 6 km E of Elgin, South Carolina M3.4 81 km
May 9, 2022 5 km ESE of Elgin, South Carolina M3.3 82 km
Jun 5, 1998 4 km SSE of Mooresville, North Carolina M3.2 101 km
Mar 21, 2011 9 km S of Cordova, North Carolina M2.9 37 km
Feb 18, 2005 7 km ENE of Irmo, South Carolina M2.9 109 km
Jan 29, 1994 12 km NNE of Alcolu, South Carolina M2.9 102 km
May 10, 2022 5 km E of Elgin, South Carolina M2.8 81 km
Jul 12, 1993 5 km SW of Greensboro, North Carolina M2.7 145 km
Mar 9, 2024 5 km E of Elgin, South Carolina M2.7 82 km
Apr 26, 2025 6 km E of Elgin, South Carolina M2.6 82 km
May 10, 2022 6 km E of Elgin, South Carolina M2.6 81 km
Jan 5, 2022 5 km SW of Lugoff, South Carolina M2.6 80 km
May 31, 2021 4 km SW of Summit, South Carolina M2.6 149 km
Jan 3, 2022 5 km S of Lugoff, South Carolina M2.5 79 km
Jan 24, 2019 6 km NNW of Jenkinsville, South Carolina M2.5 111 km
Sep 15, 2024 6 km E of Elgin, South Carolina M2.5 80 km
Mar 26, 2019 8 km E of Archdale, North Carolina M2.5 133 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

17 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 4. Most recent: Ian (2022, Cat 1).

Year Name Category Closest
2022 Ian Category 1 189 km
2020 Isaias Category 1 186 km
2019 Dorian Category 3 253 km
2018 Florence Category 2 188 km
2016 Matthew Category 2 181 km
2014 Arthur Category 2 263 km
2005 Ophelia Category 1 268 km
2004 Charley Category 1 177 km
2004 Gaston Category 1 205 km
1999 Floyd Category 2 231 km
1999 Irene Category 1 282 km
1998 Bonnie Category 3 235 km
1996 Fran Category 3 147 km
1996 Bertha Category 2 228 km
1989 Hugo Category 4 80 km
1985 Bob Category 1 287 km
1984 Diana Category 4 196 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tornado History

366 tornadoes (EF0+) within 100 km since 1950. Strongest: EF4. Total: 28 fatalities, 891 injuries.

Date Rating Distance Fatalities
May 5, 1989 EF4 52 km 1
Mar 28, 1984 EF4 59 km 4
Mar 28, 1984 EF4 35 km 0
Mar 28, 1984 EF4 46 km 0
Mar 28, 1984 EF4 46 km 7
Apr 8, 1957 EF4 94 km 0
Apr 8, 1957 EF4 36 km 4
Sep 7, 2004 EF3 64 km 0
Mar 27, 1994 EF3 88 km 0
Oct 18, 1990 EF3 48 km 0
May 20, 1980 EF3 76 km 0
Apr 18, 1969 EF3 40 km 0
Aug 29, 1964 EF3 73 km 0
Mar 31, 2022 EF2 37 km 0
May 5, 2020 EF2 76 km 0
Apr 13, 2020 EF2 26 km 0
Feb 6, 2020 EF2 87 km 0
Jan 11, 2020 EF2 47 km 0
Mar 3, 2012 EF2 69 km 0
Nov 16, 2011 EF2 87 km 3
Source: NOAA SPC (EF0+, 1950–2024)

Wildfire History

20 wildfires (100+ acres) within 100 km. Largest: UNNAMED (5,322 ac, 2009).

Year Name Acres Distance
2009 UNNAMED 5,322 99 km
1991 UNNAMED 3,968 44 km
1991 UNNAMED 3,094 31 km
1985 UNNAMED 2,743 43 km
2008 05/05 RX BURN 2,351 16 km
2007 06-09 RX BURN 2,054 20 km
2022 SCCRR-FY22-RX-PRESCRIBED FIRE 2,039 26 km
2000 UNNAMED 1,989 39 km
1998 981406 1,892 25 km
1994 CM 15 16 17 1,871 25 km
2021 SLATES CHURCH FIRE 1,824 72 km
1994 COMP 1112 1,798 26 km
1998 980803 1,780 19 km
2000 2000 1003 1,768 24 km
1999 19990505 1,756 16 km
2016 COUNTY LINE ROAD FIRE 1,704 70 km
1992 COMP 15 1,697 23 km
2018 SCCRR-FY18-RX-COMP-14 1,687 24 km
2012 4-NOV 1,636 24 km
1993 UNNAMED 1,623 27 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 44°F (6°C) 4.4 in Coldest
February 45°F (7°C) 3.7 in
March 53°F (12°C) 4.5 in
April 61°F (16°C) 2.9 in Driest
May 69°F (20°C) 3.6 in
June 76°F (24°C) 4.3 in
July 81°F (27°C) 5.0 in Warmest, Wettest
August 78°F (26°C) 4.7 in
September 72°F (22°C) 3.9 in
October 61°F (16°C) 3.7 in
November 53°F (11°C) 3.0 in
December 45°F (7°C) 3.4 in

Mount Croghan has a seasonal temperature swing of 38°F / from 44°F in January to 81°F in July. Total annual precipitation is 47.1 inches, with July being the wettest month (5.0") and April the driest (2.9").

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