Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Parole enjoys a temperate climate with an average annual temperature of 59°F (15°C). Winters average 37°F in January while summers reach 80°F in July. The area gets 297 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 41. The city sits at an elevation of 85 feet.
Temperature
37°F Jan (3°C)80°F Jul (27°C)
Annual Average
58.8°F
9% above US avg
January Average
37°F (3°C)
July Average
80°F (27°C)
Sunny Days
297 days/yr
Geography
Elevation
85 ft (26 m)
Area
11.8 sq mi (30.6 km²)
Population Density
1,744/sq mi
Coordinates
38.9879°N, 76.5527°W
Timezone
America/New_York
County
Anne Arundel County County
Nearest Airport
Baltimore/Washington International Thurgood Marshall (BWI) 14 miles away
Precipitation & Snow
Wettest Month (May)4.33"
Driest Month (Feb)2.83"
Air Quality
AQI Median
41.0
Rating
Good
Natural Hazard Risk
Overall Risk
Relatively Moderate
Risk Score
81.9 / 100
Social Vulnerability
10.6 / 100
Community Resilience
89.0 / 100
Hazard Breakdown
Tornado
Relatively Moderate
Hurricane
Relatively Moderate
Earthquake
Relatively Low
Wildfire
Very Low
Flood
Relatively Moderate
Hail
Relatively Moderate
Strong Wind
Relatively High
Heat Wave
Relatively Moderate
Winter Weather
Relatively High
Lightning
Relatively High
Ice Storm
Relatively Moderate
Drought
Relatively Moderate
Cold Wave
Relatively Moderate
Landslide
Relatively Low
Coastal Flood
Relatively Moderate
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
22 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
80 km
7 km
Oct 23, 1990
3 km W of Hancocks Bridge, New Jersey
M3.2
107 km
10 km
Jun 3, 2010
4 km ENE of Franklintown, Pennsylvania
M3.1
127 km
2 km
Jan 17, 2016
3 km NE of Ranson, West Virginia
M3.0
116 km
5 km
Nov 14, 1997
0 km S of Rothsville, Pennsylvania
M3.0
131 km
5 km
Apr 24, 2009
1 km S of Franklintown, Pennsylvania
M2.9
126 km
1 km
Sep 15, 2019
5 km ESE of East Berlin, Pennsylvania
M2.8
109 km
5 km
Jul 1, 2009
3 km ESE of Pennsville, New Jersey
M2.8
118 km
5 km
Oct 25, 2009
4 km ENE of Franklintown, Pennsylvania
M2.8
129 km
1 km
Mar 15, 1993
5 km W of Columbia, Maryland
M2.7
40 km
5 km
Oct 28, 1994
1 km E of Mount Vernon, Maryland
M2.7
35 km
—
Mar 11, 1995
0 km ENE of Landisville, Pennsylvania
M2.7
124 km
5 km
Jan 25, 2015
4 km ESE of Downingtown, Pennsylvania
M2.6
136 km
2 km
Jan 13, 1990
6 km ENE of Eldersburg, Maryland
M2.6
56 km
5 km
Jun 25, 2021
2 km SE of Woodlawn, Maryland
M2.6
38 km
3 km
Jan 18, 1994
3 km SE of Clay, Pennsylvania
M2.6
137 km
5 km
Oct 28, 1996
2 km W of Reinholds, Pennsylvania
M2.6
147 km
5 km
Jul 5, 1996
2 km NW of Chester Heights, Pennsylvania
M2.6
137 km
18 km
Jul 27, 1997
5 km SSE of Culpeper, Virginia
M2.5
139 km
19 km
Sep 29, 1997
Virginia
M2.5
80 km
3 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
6 hurricanes (Category 1+) recorded within 500 km since 1980.
Strongest on record: Category 3.
Year
Name
Category
Max Wind
Closest
2011
Irene
Category 1
75 mph
167 km
2003
Isabel
Category 1
75 mph
274 km
1999
Floyd
Category 1
—
247 km
1991
Bob
Category 3
115 mph
286 km
1986
Charley
Category 1
81 mph
213 km
1985
Gloria
Category 2
98 mph
190 km
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
464 tornadoes (EF0+) recorded within 100 km since 1950.
Strongest on record: EF4. Total: 13 fatalities, 451 injuries.
Date
Rating
Distance
Path
Fatalities
Apr 28, 2002
EF4
73 km
38.0 mi
3
Apr 1, 2023
EF3
83 km
14.3 mi
1
Apr 28, 2002
EF3
67 km
18.0 mi
0
Sep 24, 2001
EF3
38 km
17.5 mi
2
Jul 19, 1996
EF3
68 km
2.2 mi
0
May 22, 1983
EF3
99 km
2.0 mi
0
Sep 5, 1979
EF3
51 km
17.9 mi
1
Jan 26, 1978
EF3
85 km
0.7 mi
1
Apr 1, 1973
EF3
70 km
9.8 mi
0
Jun 9, 1961
EF3
24 km
0.1 mi
0
Apr 5, 1952
EF3
98 km
17.5 mi
0
Sep 1, 2021
EF2
16 km
11.4 mi
0
Aug 4, 2020
EF2
92 km
35.8 mi
0
Aug 4, 2020
EF2
92 km
1.3 mi
0
Apr 15, 2019
EF2
96 km
6.2 mi
0
Nov 2, 2018
EF2
67 km
5.5 mi
0
Jul 23, 2017
EF2
18 km
2.4 mi
0
Sep 18, 2004
EF2
81 km
2.0 mi
0
Sep 17, 2004
EF2
77 km
15.0 mi
0
Sep 17, 2004
EF2
86 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
82 km
2004
RETAINING ECOLOGICAL HEALTH
5,678
79 km
2014
BLACKWATER MARSH WUI BURNS FY14
5,433
79 km
2005
MARSH RX-FWS
4,380
79 km
2007
GUINEA MARSH
4,173
85 km
2009
DOCTORS CREEK
3,686
85 km
1999
FB R O C I
3,525
82 km
2019
MDBWR-FY19-RX-MDWHS SUPPORT
3,197
80 km
2011
COMPARTMENT J
2,775
80 km
2005
ISLAND CREEK
2,729
86 km
2004
UNNAMED
2,156
86 km
1992
UNNAMED
2,038
81 km
2005
VEGETATION RESEARCH
1,926
81 km
2011
THOROFARE
1,850
81 km
1987
UNNAMED
1,692
77 km
2004
ROBBINS FIRE
1,612
82 km
2004
BLACKWATER HAZARD FUEL REDUCTION
1,518
72 km
2009
BECKERS ISLAND
1,398
82 km
2022
ELLIOTTS ISLAND
1,324
86 km
2006
UNNAMED
1,260
79 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
37°F (3°C)
3.3 in
February
36°F (2°C)
2.8 in
Coldest, Driest
March
45°F (7°C)
3.9 in
April
54°F (12°C)
3.4 in
May
63°F (17°C)
4.3 in
Wettest
June
72°F (22°C)
3.7 in
July
80°F (27°C)
4.2 in
Warmest
August
75°F (24°C)
4.1 in
September
69°F (20°C)
3.9 in
October
57°F (14°C)
3.2 in
November
48°F (9°C)
3.4 in
December
39°F (4°C)
3.4 in
Parole has a seasonal temperature swing of 44°F / from 36°F in February to 80°F in July. Total annual precipitation is 43.6 inches, with May being the wettest month (4.3") and February the driest (2.8").