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Flower Hill, MD

Full City Profile · Maryland · Montgomery County County

3.9 /5.0
B+ Good
13,743 Population 6,576/sq mi density
$107,987 Median Income $41,740 per capita
$426,900 Home Value $521,654 Zillow
$2,032 Median Rent 32.1% income on rent
56°F Avg Temperature 293 sunny days/yr
B+
Overall
3.9 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.6 / 5.0
$107,987 median income, 4.7% unemployment
A
Affordability
4.5 / 5.0
$426,900 home value, $2,032/mo rent
C+
Safety
2.5 / 5.0
0 violent crimes/100K
A
Education
4.1 / 5.0
39.0% bachelor's degree or higher
Flower Hill enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 35°F in January while summers reach 78°F in July. The area gets 293 sunny days per year. Annual precipitation totals 41.3 inches. Air quality is rated Good with a median AQI of 41.

Temperature

35°F Jan (1°C) 78°F Jul (26°C)
Annual Average56.2°F
4% above US avg
January Average35°F (1°C)
July Average78°F (26°C)
Sunny Days293 days/yr

Geography

Elevation440 ft (134 m)
Area0.9 sq mi (2.4 km²)
Population Density6,576/sq mi
Coordinates39.1684°N, 77.1844°W
TimezoneAmerica/New_York
CountyMontgomery County County
Nearest AirportRonald Reagan Washington Ntl (DCA)
23 miles away

Precipitation & Snow

Annual Rainfall 41.3"
9% above US avg
Wettest Month (May) 4.13"
Driest Month (Feb) 2.76"

Air Quality

AQI Median41.0
RatingGood

Air Pollutants (EPA 2023)

Ozone (O₃)0.0449 ppm
PM2.5 (Fine Particles)6.3 μg/m³

Natural Hazard Risk

Overall RiskRelatively Moderate
Risk Score91.7 / 100
Social Vulnerability19.9 / 100
Community Resilience63.6 / 100

Hazard Breakdown

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

Earthquake History

22 earthquakes (M2.5+) within 150 km since 1990. Strongest: M3.6. Most recent: M2.6 on Jun 25, 2021.

Jul 16, 2010 5 km NNW of Barnesville, Maryland M3.6 22 km
Jun 13, 2019 9 km N of Blain, Pennsylvania M3.4 142 km
Oct 23, 1990 3 km W of Hancocks Bridge, New Jersey M3.2 149 km
Jun 3, 2010 4 km ENE of Franklintown, Pennsylvania M3.1 104 km
Jan 17, 2016 3 km NE of Ranson, West Virginia M3.0 58 km
Nov 14, 1997 0 km S of Rothsville, Pennsylvania M3.0 135 km
Oct 2, 2010 10 km NNW of Ashland, Virginia M3.0 149 km
Apr 24, 2009 1 km S of Franklintown, Pennsylvania M2.9 101 km
Sep 15, 2019 5 km ESE of East Berlin, Pennsylvania M2.8 87 km
Mar 15, 2015 6 km SW of Mineral, Virginia M2.8 150 km
Oct 25, 2009 4 km ENE of Franklintown, Pennsylvania M2.8 105 km
Mar 15, 1993 5 km W of Columbia, Maryland M2.7 26 km
Oct 28, 1994 1 km E of Mount Vernon, Maryland M2.7 52 km
Mar 11, 1995 0 km ENE of Landisville, Pennsylvania M2.7 124 km
Jan 13, 1990 6 km ENE of Eldersburg, Maryland M2.6 39 km
Jun 25, 2021 2 km SE of Woodlawn, Maryland M2.6 44 km
Aug 25, 2011 7 km SE of Mineral, Virginia M2.6 147 km
Jan 18, 1994 3 km SE of Clay, Pennsylvania M2.6 141 km
Jul 27, 1997 5 km SSE of Culpeper, Virginia M2.5 107 km
Sep 29, 1997 Virginia M2.5 45 km
Source: USGS (M2.5+, 1990-2025)

Hurricane History

5 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 2. Most recent: Irene (2011, Cat 1).

Year Name Category Closest
2011 Irene Category 1 224 km
2003 Isabel Category 1 278 km
1999 Floyd Category 1 280 km
1986 Charley Category 1 262 km
1985 Gloria Category 2 248 km
Source: NOAA IBTrACS (Cat 1+, 1980-2026)

Tornado History

489 tornadoes (EF0+) within 100 km since 1950. Strongest: EF4. Total: 9 fatalities, 385 injuries.

Date Rating Distance Fatalities
Apr 28, 2002 EF4 69 km 3
Sep 24, 2001 EF4 96 km 0
Sep 17, 2004 EF3 90 km 0
Sep 24, 2001 EF3 32 km 2
Jul 19, 1996 EF3 41 km 0
May 22, 1983 EF3 59 km 0
Jun 7, 1980 EF3 86 km 0
Sep 5, 1979 EF3 44 km 1
Jan 26, 1978 EF3 75 km 1
Apr 1, 1973 EF3 43 km 0
Jun 9, 1961 EF3 49 km 0
Apr 5, 1952 EF3 72 km 0
Sep 1, 2021 EF2 62 km 0
Apr 19, 2019 EF2 100 km 0
Nov 2, 2018 EF2 20 km 0
Jul 23, 2017 EF2 76 km 0
May 8, 2008 EF2 95 km 0
Sep 18, 2004 EF2 92 km 0
Sep 17, 2004 EF2 72 km 0
Sep 17, 2004 EF2 80 km 0
Source: NOAA SPC (EF0+, 1950-2024)

Wildfire History

2 wildfires (100+ acres) within 100 km. Largest: SMITH RUN FIRE (1,908 ac, 2011).

Year Name Acres Distance
2011 SMITH RUN FIRE 1,908 95 km
1999 NCO 816 71 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 35°F (1°C) 2.9 in
February 34°F (1°C) 2.8 in Coldest, Driest
March 43°F (6°C) 3.5 in
April 53°F (12°C) 3.3 in
May 62°F (17°C) 4.1 in Wettest
June 71°F (21°C) 3.8 in
July 78°F (26°C) 3.7 in Warmest
August 74°F (23°C) 3.7 in
September 67°F (19°C) 3.5 in
October 56°F (13°C) 3.1 in
November 46°F (8°C) 3.3 in
December 36°F (2°C) 3.1 in

Flower Hill has a seasonal temperature swing of 44°F / from 34°F in February to 78°F in July. Total annual precipitation is 40.9 inches, with May being the wettest month (4.1") and February the driest (2.8").

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