Weather & Climate in Crumpton, MD

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

Crumpton enjoys a temperate climate with an average annual temperature of 57°F (14°C). Winters average 36°F in January while summers reach 78°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 47.6 inches (wetter than the 38-inch national average). The area receives 13.2 inches of snow annually. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 32 feet.

Temperature

36°F Jan (2°C) 78°F Jul (26°C)

Annual Average	57.1°F
	6% above US avg
January Average	36°F (2°C)
July Average	78°F (26°C)
Sunny Days	293 days/yr

Geography

Elevation	32 ft (10 m)
Area	1.1 sq mi (2.7 km²)
Population Density	318/sq mi
Coordinates	39.2332°N, 75.9220°W
Timezone	America/New_York
County	Cecil County County
Nearest Airport	Baltimore/Washington International Thurgood Marshall (BWI) 40 miles away

Precipitation & Snow

Annual Rainfall 47.6"

25% above US avg

Snowfall 13.2"

Wettest Month (May) 4.13"

Driest Month (Feb) 2.87"

Air Quality

AQI Median	41.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Low
Risk Score	58.6 / 100
Social Vulnerability	21.9 / 100
Community Resilience	60.9 / 100

Hazard Breakdown

Tornado	Relatively Low
Hurricane	Relatively Low
Earthquake	Relatively Low
Wildfire	Very Low
Flood	Relatively Low
Hail	Very Low
Strong Wind	Relatively High
Heat Wave	Relatively Low
Winter Weather	Relatively High
Lightning	Relatively Moderate
Ice Storm	Relatively Moderate
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

26 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.6.

Jan 16, 1994	2 km W of Sinking Spring, Pennsylvania	M4.6	122 km	5 km
Jan 16, 1994	0 km E of Sinking Spring, Pennsylvania	M4.2	122 km	5 km
Jul 16, 2010	5 km NNW of Barnesville, Maryland	M3.6	128 km	7 km
Oct 23, 1990	3 km W of Hancocks Bridge, New Jersey	M3.2	47 km	10 km
Jun 3, 2010	4 km ENE of Franklintown, Pennsylvania	M3.1	131 km	2 km
Nov 14, 1997	0 km S of Rothsville, Pennsylvania	M3.0	105 km	5 km
Apr 24, 2009	1 km S of Franklintown, Pennsylvania	M2.9	132 km	1 km
Jan 16, 1994	0 km SSE of Sinking Spring, Pennsylvania	M2.9	121 km	5 km
Sep 15, 2019	5 km ESE of East Berlin, Pennsylvania	M2.8	115 km	5 km
May 10, 1993	1 km NW of Whitfield, Pennsylvania	M2.8	124 km	5 km
Jul 1, 2009	3 km ESE of Pennsville, New Jersey	M2.8	59 km	5 km
Oct 25, 2009	4 km ENE of Franklintown, Pennsylvania	M2.8	132 km	1 km
Oct 28, 1994	1 km E of Mount Vernon, Maryland	M2.7	59 km	-
Mar 11, 1995	0 km ENE of Landisville, Pennsylvania	M2.7	105 km	5 km
Mar 15, 1993	5 km W of Columbia, Maryland	M2.7	84 km	5 km
Jan 25, 2015	4 km ESE of Downingtown, Pennsylvania	M2.6	88 km	2 km
Jan 18, 1994	3 km SE of Clay, Pennsylvania	M2.6	110 km	5 km
Oct 28, 1996	2 km W of Reinholds, Pennsylvania	M2.6	117 km	5 km
Jun 25, 2021	2 km SE of Woodlawn, Maryland	M2.6	68 km	3 km
Jan 13, 1990	6 km ENE of Eldersburg, Maryland	M2.6	85 km	5 km

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

Hurricane History

7 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.

Year	Name	Category	Max Wind	Closest
2014	Arthur	Category 1	92 mph	278 km
2012	Sandy	Category 1	92 mph	258 km
2011	Irene	Category 1	75 mph	149 km
1999	Floyd	Category 1	-	271 km
1991	Bob	Category 3	109 mph	255 km
1986	Charley	Category 1	75 mph	213 km
1985	Gloria	Category 2	98 mph	154 km

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

Tornado History

370 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 11 fatalities, 316 injuries.

Date	Rating	Distance	Path	Fatalities
Apr 1, 2023	EF3	58 km	14.3 mi	1
Sep 1, 2021	EF3	76 km	12.4 mi	0
Apr 28, 2002	EF3	96 km	18.0 mi	0
Sep 24, 2001	EF3	97 km	17.5 mi	2
Jul 19, 1996	EF3	96 km	2.2 mi	0
Jul 27, 1994	EF3	57 km	4.0 mi	0
Jun 9, 1961	EF3	60 km	0.1 mi	0
Apr 28, 1961	EF3	57 km	0.3 mi	0
Mar 22, 1955	EF3	86 km	9.6 mi	1
Sep 1, 2021	EF2	60 km	5.9 mi	0
Sep 1, 2021	EF2	72 km	11.4 mi	0
Aug 4, 2020	EF2	39 km	35.8 mi	0
Aug 4, 2020	EF2	89 km	1.3 mi	0
Oct 31, 2019	EF2	83 km	0.5 mi	0
Apr 15, 2019	EF2	79 km	6.2 mi	0
Jul 23, 2017	EF2	48 km	2.4 mi	0
Feb 24, 2016	EF2	87 km	4.9 mi	0
Sep 28, 2004	EF2	57 km	5.0 mi	0
Sep 18, 2004	EF2	65 km	2.0 mi	0
May 2, 2002	EF2	47 km	4.5 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	-	-	88 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	94 km
2004	RETAINING ECOLOGICAL HEALTH	5,678	95 km
2014	BLACKWATER MARSH WUI BURNS FY14	5,433	95 km
2005	MARSH RX-FWS	4,380	93 km
2007	GUINEA MARSH	4,173	96 km
2009	DOCTORS CREEK	3,686	95 km
1999	FB R O C I	3,525	97 km
2019	MDBWR-FY19-RX-MDWHS SUPPORT	3,197	95 km
2011	COMPARTMENT J	2,775	95 km
2005	ISLAND CREEK	2,729	96 km
2004	UNNAMED	2,156	97 km
1992	UNNAMED	2,038	93 km
2005	VEGETATION RESEARCH	1,926	91 km
2011	THOROFARE	1,850	92 km
1987	UNNAMED	1,692	94 km
2004	ROBBINS FIRE	1,612	98 km
1988	SLAU BCH 2	1,578	66 km
2020	SPLIT DITCH	1,518	72 km
2004	BLACKWATER HAZARD FUEL REDUCTION	1,518	90 km
2020	BIG TIMBER	1,434	99 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	36°F (2°C)	3.5 in
February	35°F (1°C)	2.9 in	Coldest, Driest
March	43°F (6°C)	4.0 in
April	53°F (12°C)	3.4 in
May	63°F (17°C)	4.1 in	Wettest
June	71°F (22°C)	3.9 in
July	78°F (26°C)	4.1 in	Warmest
August	75°F (24°C)	4.0 in
September	68°F (20°C)	4.0 in
October	57°F (14°C)	3.2 in
November	47°F (8°C)	3.2 in
December	38°F (3°C)	3.5 in

Crumpton has a seasonal temperature swing of 43°F / from 35°F in February to 78°F in July. Total annual precipitation is 43.8 inches, with May being the wettest month (4.1") and February the driest (2.9").

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