Weather & Climate in Galesville, MD

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

Galesville 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 15 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	15 ft (5 m)
Area	1.7 sq mi (4.4 km²)
Population Density	914/sq mi
Coordinates	38.8408°N, 76.5544°W
Timezone	America/New_York
County	Anne Arundel County County
Nearest Airport	Baltimore/Washington International Thurgood Marshall (BWI) 24 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

20 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	87 km	7 km
Oct 23, 1990	3 km W of Hancocks Bridge, New Jersey	M3.2	117 km	10 km
Jun 3, 2010	4 km ENE of Franklintown, Pennsylvania	M3.1	143 km	2 km
Jan 17, 2016	3 km NE of Ranson, West Virginia	M3.0	122 km	5 km
Oct 2, 2010	10 km NNW of Ashland, Virginia	M3.0	138 km	19 km
Nov 14, 1997	0 km S of Rothsville, Pennsylvania	M3.0	147 km	5 km
Apr 24, 2009	1 km S of Franklintown, Pennsylvania	M2.9	142 km	1 km
Sep 15, 2019	5 km ESE of East Berlin, Pennsylvania	M2.8	125 km	5 km
Jul 1, 2009	3 km ESE of Pennsville, New Jersey	M2.8	129 km	5 km
Oct 25, 2009	4 km ENE of Franklintown, Pennsylvania	M2.8	144 km	1 km
Mar 15, 1993	5 km W of Columbia, Maryland	M2.7	53 km	5 km
Oct 28, 1994	1 km E of Mount Vernon, Maryland	M2.7	51 km	—
Mar 11, 1995	0 km ENE of Landisville, Pennsylvania	M2.7	141 km	5 km
Jan 13, 1990	6 km ENE of Eldersburg, Maryland	M2.6	71 km	5 km
Jun 25, 2021	2 km SE of Woodlawn, Maryland	M2.6	53 km	3 km
Jul 5, 1996	2 km NW of Chester Heights, Pennsylvania	M2.6	150 km	18 km
Mar 10, 1993	3 km WSW of Columbia, Maryland	M2.5	52 km	5 km
Sep 29, 1997	Virginia	M2.5	77 km	3 km
Jun 25, 2001	8 km S of Remington, Virginia	M2.5	118 km	5 km
Jul 27, 1997	5 km SSE of Culpeper, Virginia	M2.5	132 km	19 km

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

Hurricane History

8 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	296 km
2012	Sandy	Category 1	92 mph	298 km
2011	Irene	Category 1	75 mph	158 km
2003	Isabel	Category 1	75 mph	259 km
1999	Floyd	Category 1	—	230 km
1991	Bob	Category 3	115 mph	277 km
1986	Charley	Category 1	81 mph	199 km
1985	Gloria	Category 2	98 mph	185 km

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

Tornado History

453 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 13 fatalities, 433 injuries.

Date	Rating	Distance	Path	Fatalities
Apr 28, 2002	EF4	63 km	38.0 mi	3
Apr 1, 2023	EF3	80 km	14.3 mi	1
Apr 28, 2002	EF3	52 km	18.0 mi	0
Sep 24, 2001	EF3	38 km	17.5 mi	2
Jul 19, 1996	EF3	82 km	2.2 mi	0
Sep 5, 1979	EF3	46 km	17.9 mi	1
Jan 26, 1978	EF3	75 km	0.7 mi	1
Apr 1, 1973	EF3	67 km	9.8 mi	0
Nov 2, 1966	EF3	98 km	0.1 mi	0
Jun 9, 1961	EF3	40 km	0.1 mi	0
Sep 1, 2021	EF2	4 km	11.4 mi	0
May 3, 2021	EF2	98 km	4.4 mi	0
Aug 4, 2020	EF2	96 km	35.8 mi	0
Aug 4, 2020	EF2	82 km	1.3 mi	0
Apr 15, 2019	EF2	89 km	6.2 mi	0
Nov 2, 2018	EF2	78 km	5.5 mi	0
Jul 23, 2017	EF2	23 km	2.4 mi	0
May 8, 2008	EF2	100 km	3.4 mi	0
Sep 18, 2004	EF2	97 km	2.0 mi	0
Sep 17, 2004	EF2	75 km	15.0 mi	0

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

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	70 km
2004	RETAINING ECOLOGICAL HEALTH	5,678	65 km
2014	BLACKWATER MARSH WUI BURNS FY14	5,433	66 km
2005	MARSH RX-FWS	4,380	66 km
2007	GUINEA MARSH	4,173	73 km
2009	DOCTORS CREEK	3,686	72 km
1999	FB R O C I	3,525	69 km
2019	MDBWR-FY19-RX-MDWHS SUPPORT	3,197	67 km
2011	COMPARTMENT J	2,775	67 km
2005	ISLAND CREEK	2,729	74 km
2004	UNNAMED	2,156	74 km
1992	UNNAMED	2,038	69 km
2005	VEGETATION RESEARCH	1,926	69 km
2011	THOROFARE	1,850	68 km
1987	UNNAMED	1,692	64 km
2004	ROBBINS FIRE	1,612	69 km
2004	BLACKWATER HAZARD FUEL REDUCTION	1,518	58 km
2009	BECKERS ISLAND	1,398	69 km
2022	ELLIOTTS ISLAND	1,324	74 km
2006	UNNAMED	1,260	65 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

Galesville 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").

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