Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Secretary enjoys a temperate climate with an average annual temperature of 58°F (15°C). Winters average 38°F in January while summers reach 79°F in July. Annual precipitation totals 47.6 inches (wetter than the 38-inch national average). The area receives 14.1 inches of snow annually. The city sits at an elevation of 21 feet.
Temperature
38°F Jan (3°C)79°F Jul (26°C)
Annual Average
58.3°F
8% above US avg
January Average
38°F (3°C)
July Average
79°F (26°C)
Geography
Elevation
21 ft (6 m)
Area
0.3 sq mi (0.7 km²)
Population Density
2,062/sq mi
Coordinates
38.6082°N, 75.9470°W
Timezone
America/New_York
County
Caroline County County
Nearest Airport
Cambridge-Dorchester Regional (CGE) 7 miles away
Precipitation & Snow
Annual Rainfall47.6"
25% above US avg
Snowfall14.1"
Wettest Month (Aug)4.78"
Driest Month (Feb)3.06"
Air Quality
Natural Hazard Risk
Overall Risk
Relatively Low
Risk Score
45.7 / 100
Social Vulnerability
58.7 / 100
Community Resilience
56.0 / 100
Hazard Breakdown
Tornado
Very Low
Hurricane
Relatively Moderate
Earthquake
Very Low
Wildfire
Relatively Low
Flood
Very Low
Hail
Relatively Low
Strong Wind
Relatively Moderate
Heat Wave
Relatively Low
Winter Weather
Relatively Moderate
Lightning
Relatively Low
Ice Storm
Relatively Low
Drought
Relatively High
Cold Wave
Relatively Low
Landslide
Very Low
Coastal Flood
Relatively Low
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
11 earthquakes (M2.5+) recorded within 150 km since 1990.
Strongest on record: M3.6.
Jul 16, 2010
5 km NNW of Barnesville, Maryland
M3.6
146 km
7 km
Oct 23, 1990
3 km W of Hancocks Bridge, New Jersey
M3.2
108 km
10 km
Jul 1, 2009
3 km ESE of Pennsville, New Jersey
M2.8
122 km
5 km
Mar 15, 1993
5 km W of Columbia, Maryland
M2.7
108 km
5 km
Oct 28, 1994
1 km E of Mount Vernon, Maryland
M2.7
95 km
-
Jan 13, 1990
6 km ENE of Eldersburg, Maryland
M2.6
122 km
5 km
Jun 25, 2021
2 km SE of Woodlawn, Maryland
M2.6
102 km
3 km
Jul 5, 1996
2 km NW of Chester Heights, Pennsylvania
M2.6
150 km
18 km
Feb 9, 2023
29 km E of Greenbackville, Virginia
M2.6
101 km
11 km
Sep 29, 1997
Virginia
M2.5
132 km
3 km
Mar 10, 1993
3 km WSW of Columbia, Maryland
M2.5
107 km
5 km
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Hurricane History
10 hurricanes (Category 1+) recorded within 500 km since 1980.
Strongest on record: Category 3.
Year
Name
Category
Max Wind
Closest
2014
Arthur
Category 2
92 mph
242 km
2012
Sandy
Category 1
92 mph
242 km
2011
Irene
Category 1
75 mph
100 km
2003
Isabel
Category 1
75 mph
262 km
1999
Floyd
Category 1
-
202 km
1998
Bonnie
Category 1
86 mph
257 km
1993
Emily
Category 3
115 mph
259 km
1991
Bob
Category 3
115 mph
219 km
1986
Charley
Category 1
81 mph
149 km
1985
Gloria
Category 2
98 mph
128 km
Source: NOAA IBTrACS (Category 1+, 1980-2026).
Tornado History
300 tornadoes (EF0+) recorded within 100 km since 1950.
Strongest on record: EF3. Total: 8 fatalities, 175 injuries.
Date
Rating
Distance
Path
Fatalities
Apr 1, 2023
EF3
31 km
14.3 mi
1
Apr 28, 2002
EF3
37 km
18.0 mi
0
Sep 24, 2001
EF3
96 km
17.5 mi
2
Nov 2, 1966
EF3
100 km
0.1 mi
0
Jun 9, 1961
EF3
88 km
0.1 mi
0
Sep 1, 2021
EF2
62 km
11.4 mi
0
May 3, 2021
EF2
91 km
4.4 mi
0
Aug 4, 2020
EF2
67 km
35.8 mi
0
Aug 4, 2020
EF2
24 km
1.3 mi
0
Aug 4, 2020
EF2
74 km
3.8 mi
0
Apr 15, 2019
EF2
31 km
6.2 mi
0
Jul 23, 2017
EF2
53 km
2.4 mi
0
Apr 28, 2002
EF2
90 km
3.0 mi
0
Oct 5, 1995
EF2
90 km
2.5 mi
0
May 18, 1995
EF2
30 km
10.0 mi
0
Jul 27, 1994
EF2
76 km
4.0 mi
0
Jul 27, 1994
EF2
73 km
7.0 mi
0
Jul 27, 1994
EF2
88 km
0.8 mi
0
Jul 27, 1994
EF2
75 km
0.8 mi
0
Jul 31, 1992
EF2
59 km
4.0 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
1840
PHILADELPHIA, PENNSYLVANIA
Earthquake
-
-
147 km
Source: NOAA/NCEI Historical Tsunami Database.
Wildfire History
20 wildfires (100+ acres) recorded within 100 km.
Largest: BESTPITCH (7,743 acres, 2017).
Year
Name
Acres Burned
Distance
2017
BESTPITCH
7,743
25 km
2004
RETAINING ECOLOGICAL HEALTH
5,678
27 km
2014
BLACKWATER MARSH WUI BURNS FY14
5,433
26 km
2005
MARSH RX-FWS
4,380
24 km
2007
GUINEA MARSH
4,173
26 km
2009
DOCTORS CREEK
3,686
26 km
1999
FB R O C I
3,525
28 km
2019
MDBWR-FY19-RX-MDWHS SUPPORT
3,197
26 km
2011
COMPARTMENT J
2,775
26 km
2005
ISLAND CREEK
2,729
27 km
2004
UNNAMED
2,156
27 km
1992
UNNAMED
2,038
23 km
2005
VEGETATION RESEARCH
1,926
22 km
2011
THOROFARE
1,850
23 km
1987
UNNAMED
1,692
26 km
2004
ROBBINS FIRE
1,612
29 km
1988
SLAU BCH 2
1,578
65 km
2004
BLACKWATER HAZARD FUEL REDUCTION
1,518
24 km
2009
BECKERS ISLAND
1,398
28 km
2022
ELLIOTTS ISLAND
1,324
26 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
38°F (3°C)
3.5 in
Coldest
February
39°F (4°C)
3.1 in
Driest
March
47°F (8°C)
4.4 in
April
57°F (14°C)
3.7 in
May
66°F (19°C)
4.0 in
June
74°F (24°C)
4.0 in
July
79°F (26°C)
4.3 in
Warmest
August
77°F (25°C)
4.8 in
Wettest
September
71°F (22°C)
4.2 in
October
60°F (16°C)
4.4 in
November
50°F (10°C)
3.4 in
December
41°F (5°C)
3.9 in
Secretary has a seasonal temperature swing of 42°F / from 38°F in January to 79°F in July. Total annual precipitation is 47.6 inches, with August being the wettest month (4.8") and February the driest (3.1").