Temperature, precipitation, air quality, natural hazards, and monthly weather data.
South Rosemary enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winters average 41°F in January while summers reach 80°F in July. The area gets 318 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Air quality is rated Good with a median AQI of 40. The city sits at an elevation of 206 feet.
Temperature
41°F Jan (5°C)80°F Jul (27°C)
Annual Average
60.6°F
12% above US avg
January Average
41°F (5°C)
July Average
80°F (27°C)
Sunny Days
318 days/yr
Geography
Elevation
206 ft (63 m)
Area
6.1 sq mi (15.9 km²)
Population Density
412/sq mi
Coordinates
36.4534°N, 77.7134°W
Timezone
America/New_York
County
Halifax County County
Nearest Airport
Halifax/Northampton Regional (RZZ) 10 miles away
Precipitation & Snow
Wettest Month (Jul)4.69"
Driest Month (Oct)3.03"
Air Quality
AQI Median
40.0
Rating
Good
Natural Hazard Risk
Overall Risk
Relatively Low
Risk Score
72.9 / 100
Social Vulnerability
93.1 / 100
Community Resilience
21.0 / 100
Hazard Breakdown
Tornado
Relatively Moderate
Hurricane
Relatively Moderate
Earthquake
Relatively Low
Wildfire
Very Low
Flood
Relatively Moderate
Hail
Relatively Low
Strong Wind
Relatively Low
Heat Wave
Relatively Low
Winter Weather
Relatively High
Lightning
Relatively Low
Ice Storm
Relatively Low
Drought
Relatively Moderate
Cold Wave
Relatively Low
Landslide
Very Low
Coastal Flood
No Rating
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
12 earthquakes (M2.5+) recorded within 150 km since 1990.
Strongest on record: M3.8.
Oct 21, 1998
13 km S of Dillwyn, Virginia
M3.8
126 km
13 km
Mar 15, 1991
7 km NNW of Goochland, Virginia
M3.8
145 km
16 km
May 5, 2003
Virginia
M3.6
132 km
13 km
May 22, 2014
15 km ENE of Cumberland, Virginia
M3.1
124 km
10 km
May 6, 2025
8 km S of Dillwyn, Virginia
M3.0
131 km
8 km
Aug 3, 1995
13 km N of Williamsburg, Virginia
M2.9
138 km
1 km
Jan 14, 2025
1 km NNE of Wyndham, Virginia
M2.8
140 km
0 km
Mar 13, 2017
6 km ENE of Goochland, Virginia
M2.6
139 km
11 km
Feb 26, 2015
4 km NNE of Goochland, Virginia
M2.5
141 km
10 km
Sep 23, 2019
3 km WNW of Wyndham, Virginia
M2.5
140 km
8 km
Sep 3, 2001
Virginia
M2.5
112 km
5 km
Apr 29, 2000
3 km N of Glen Allen, Virginia
M2.5
140 km
5 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
19 hurricanes (Category 1+) recorded within 500 km since 1980.
Strongest on record: Category 4.
Year
Name
Category
Max Wind
Closest
2020
Isaias
Category 1
92 mph
293 km
2019
Dorian
Category 2
104 mph
236 km
2018
Florence
Category 2
104 mph
240 km
2016
Matthew
Category 1
81 mph
249 km
2014
Arthur
Category 2
98 mph
201 km
2011
Irene
Category 1
86 mph
159 km
2005
Ophelia
Category 1
86 mph
250 km
2004
Alex
Category 2
98 mph
252 km
2003
Isabel
Category 2
104 mph
28 km
1999
Irene
Category 2
109 mph
292 km
1999
Floyd
Category 2
104 mph
117 km
1998
Bonnie
Category 2
109 mph
167 km
1996
Fran
Category 3
115 mph
165 km
1996
Bertha
Category 2
104 mph
162 km
1993
Emily
Category 3
115 mph
270 km
1991
Bob
Category 3
115 mph
274 km
1986
Charley
Category 1
81 mph
162 km
1985
Gloria
Category 2
104 mph
226 km
1984
Diana
Category 4
132 mph
274 km
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
323 tornadoes (EF0+) recorded within 100 km since 1950.
Strongest on record: EF4. Total: 36 fatalities, 778 injuries.
Date
Rating
Distance
Path
Fatalities
Aug 6, 1993
EF4
87 km
1.0 mi
4
Sep 27, 2024
EF3
54 km
0.3 mi
0
Aug 8, 2024
EF3
92 km
6.5 mi
1
Jul 19, 2023
EF3
52 km
13.5 mi
0
Aug 3, 2020
EF3
97 km
10.0 mi
2
Apr 16, 2011
EF3
80 km
17.9 mi
12
Nov 15, 2008
EF3
80 km
8.2 mi
1
Apr 28, 2008
EF3
96 km
24.0 mi
0
May 4, 1990
EF3
97 km
8.0 mi
0
Oct 14, 1986
EF3
37 km
12.0 mi
0
May 8, 1984
EF3
89 km
2.0 mi
0
Mar 28, 1984
EF3
91 km
14.0 mi
2
Mar 28, 1984
EF3
58 km
6.0 mi
6
May 22, 1983
EF3
73 km
3.5 mi
0
Apr 19, 1978
EF3
49 km
35.6 mi
0
May 15, 1972
EF3
99 km
8.5 mi
0
Mar 24, 1969
EF3
99 km
0.1 mi
1
Nov 8, 1957
EF3
84 km
46.9 mi
0
Mar 15, 1953
EF3
84 km
30.1 mi
0
Aug 4, 2020
EF2
68 km
15.9 mi
0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
6 wildfires (100+ acres) recorded within 100 km.
Largest: OLD STAGE ROAD (2,238 acres, 2008).
Year
Name
Acres Burned
Distance
2008
OLD STAGE ROAD
2,238
62 km
2008
LYNCH ROAD
1,824
31 km
2008
POCAHONTAS ROAD
1,146
41 km
2008
SYCAMORE SHORES
1,044
24 km
2008
HIGHWAY 1
766
76 km
2017
VAGDR FY17 RX DGIF SUPPORT
674
77 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
41°F (5°C)
3.6 in
Coldest
February
42°F (5°C)
3.7 in
March
49°F (10°C)
3.8 in
April
58°F (14°C)
3.1 in
May
66°F (19°C)
3.9 in
June
74°F (23°C)
3.9 in
July
80°F (27°C)
4.7 in
Warmest, Wettest
August
77°F (25°C)
4.6 in
September
71°F (22°C)
3.5 in
October
60°F (15°C)
3.0 in
Driest
November
51°F (10°C)
3.2 in
December
42°F (6°C)
3.3 in
South Rosemary has a seasonal temperature swing of 38°F / from 41°F in January to 80°F in July. Total annual precipitation is 44.3 inches, with July being the wettest month (4.7") and October the driest (3.0").