Weather & Climate in Ten Mile Creek, MD

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Ten Mile Creek experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 32°F in January while summers reach 75°F in July. The area gets 293 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 47.9 inches (wetter than the 38-inch national average). The area receives 31.4 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 586 feet.

Temperature

32°F Jan (-0°C) 75°F Jul (24°C)

Annual Average	54.0°F
	0% below US avg
January Average	32°F (-0°C)
July Average	75°F (24°C)
Sunny Days	293 days/yr

Geography

Elevation	586 ft (179 m)
Area	5.8 sq mi (15.1 km²)
Population Density	203/sq mi
Coordinates	39.2294°N, 77.2982°W
Timezone	America/New_York
County	Montgomery County County
Nearest Airport	Washington Dulles International (IAD) 25 miles away

Precipitation & Snow

Annual Rainfall 47.9"

26% above US avg

Snowfall 31.4"

Wettest Month (May) 4.13"

Driest Month (Feb) 2.76"

Air Quality

AQI Median	41.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Moderate
Risk Score	91.7 / 100
Social Vulnerability	19.9 / 100
Community Resilience	63.6 / 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

18 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	10 km	7 km
Jun 13, 2019	9 km N of Blain, Pennsylvania	M3.4	134 km	27 km
Jun 3, 2010	4 km ENE of Franklintown, Pennsylvania	M3.1	99 km	2 km
Jan 17, 2016	3 km NE of Ranson, West Virginia	M3.0	47 km	5 km
Nov 14, 1997	0 km S of Rothsville, Pennsylvania	M3.0	136 km	5 km
Apr 24, 2009	1 km S of Franklintown, Pennsylvania	M2.9	96 km	1 km
Sep 15, 2019	5 km ESE of East Berlin, Pennsylvania	M2.8	84 km	5 km
Oct 25, 2009	4 km ENE of Franklintown, Pennsylvania	M2.8	100 km	1 km
Mar 15, 1993	5 km W of Columbia, Maryland	M2.7	35 km	5 km
Oct 28, 1994	1 km E of Mount Vernon, Maryland	M2.7	61 km	—
Mar 11, 1995	0 km ENE of Landisville, Pennsylvania	M2.7	124 km	5 km
Jan 13, 1990	6 km ENE of Eldersburg, Maryland	M2.6	42 km	5 km
Jun 25, 2021	2 km SE of Woodlawn, Maryland	M2.6	51 km	3 km
Jan 18, 1994	3 km SE of Clay, Pennsylvania	M2.6	141 km	5 km
Sep 29, 1997	Virginia	M2.5	48 km	3 km
Jul 27, 1997	5 km SSE of Culpeper, Virginia	M2.5	107 km	19 km
Mar 10, 1993	3 km WSW of Columbia, Maryland	M2.5	36 km	5 km
Jun 25, 2001	8 km S of Remington, Virginia	M2.5	97 km	5 km

Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Hurricane History

5 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 2.

Year	Name	Category	Max Wind	Closest
2011	Irene	Category 1	75 mph	236 km
2003	Isabel	Category 1	75 mph	283 km
1999	Floyd	Category 1	—	290 km
1986	Charley	Category 1	75 mph	274 km
1985	Gloria	Category 2	98 mph	259 km

Source: NOAA IBTrACS (Category 1+, 1980–2026).

Tornado History

465 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 9 fatalities, 376 injuries.

Date	Rating	Distance	Path	Fatalities
Apr 28, 2002	EF4	76 km	38.0 mi	3
Sep 24, 2001	EF4	94 km	10.0 mi	0
Sep 17, 2004	EF3	90 km	9.0 mi	0
Sep 24, 2001	EF3	43 km	17.5 mi	2
Jul 19, 1996	EF3	41 km	2.2 mi	0
May 22, 1983	EF3	53 km	2.0 mi	0
Jun 7, 1980	EF3	82 km	1.5 mi	0
Sep 5, 1979	EF3	53 km	17.9 mi	1
Jan 26, 1978	EF3	81 km	0.7 mi	1
Apr 1, 1973	EF3	48 km	9.8 mi	0
Jun 9, 1961	EF3	59 km	0.1 mi	0
Apr 16, 1961	EF3	93 km	0.1 mi	0
Apr 5, 1952	EF3	69 km	17.5 mi	0
Sep 1, 2021	EF2	74 km	11.4 mi	0
Apr 19, 2019	EF2	89 km	2.9 mi	0
Nov 2, 2018	EF2	17 km	5.5 mi	0
Jul 23, 2017	EF2	87 km	2.4 mi	0
May 8, 2008	EF2	99 km	3.4 mi	0
Sep 18, 2004	EF2	95 km	2.0 mi	0
Sep 17, 2004	EF2	71 km	13.0 mi	0

Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Wildfire History

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

Year	Name	Acres Burned	Distance
2011	SMITH RUN FIRE	1,908	89 km
2012	POINT 2	1,126	98 km
1999	NCO	816	76 km
1984	UNNAMED	696	95 km

Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	32°F (-0°C)	2.9 in	Coldest
February	34°F (1°C)	2.8 in	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	75°F (24°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

Ten Mile Creek has a seasonal temperature swing of 43°F / from 32°F in January to 75°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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