Weather & Climate in Langhorne Manor, PA

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

Langhorne Manor experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 30°F in January while summers reach 76°F in July. The area gets 271 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 50.7 inches (wetter than the 38-inch national average). The area receives 19.9 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 40. The city sits at an elevation of 224 feet.

Temperature

30°F Jan (-1°C) 76°F Jul (24°C)

Annual Average	52.9°F
	2% below US avg
January Average	30°F (-1°C)
July Average	76°F (24°C)
Sunny Days	271 days/yr

Geography

Elevation	224 ft (68 m)
Area	0.2 sq mi (0.6 km²)
Population Density	2,643/sq mi
Coordinates	40.1660°N, 74.9183°W
Timezone	America/New_York
County	Mercer County County
Nearest Airport	South Jersey Regional (LLY) 16 miles away

Precipitation & Snow

Annual Rainfall 50.7"

33% above US avg

Snowfall 19.9"

Wettest Month (Jul) 4.65"

Driest Month (Feb) 2.83"

Air Quality

AQI Median	40.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively High
Risk Score	95.4 / 100
Social Vulnerability	46.9 / 100
Community Resilience	70.2 / 100

Hazard Breakdown

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

Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

30 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.

Apr 5, 2024	2024 Tewksbury, New Jersey Earthquake	M4.8	61 km	3 km
Jan 16, 1994	2 km W of Sinking Spring, Pennsylvania	M4.6	97 km	5 km
Jan 16, 1994	0 km E of Sinking Spring, Pennsylvania	M4.2	94 km	5 km
Apr 5, 2024	7 km WSW of Gladstone, New Jersey	M3.7	60 km	4 km
Oct 23, 1990	3 km W of Hancocks Bridge, New Jersey	M3.2	88 km	10 km
Aug 26, 2003	4 km NNW of Milford, New Jersey	M3.1	52 km	3 km
Jan 9, 1992	4 km WNW of Robertsville, New Jersey	M3.1	54 km	8 km
Nov 14, 1997	0 km S of Rothsville, Pennsylvania	M3.0	113 km	5 km
Aug 3, 2025	0 km W of Little Ferry, New Jersey	M3.0	106 km	10 km
Feb 3, 2009	1 km ESE of Victory Gardens, New Jersey	M3.0	85 km	0 km
Jan 16, 1994	0 km SSE of Sinking Spring, Pennsylvania	M2.9	94 km	5 km
May 24, 2024	6 km E of Califon, New Jersey	M2.9	62 km	7 km
Apr 27, 2024	7 km WSW of Gladstone, New Jersey	M2.9	60 km	5 km
May 10, 1993	1 km NW of Whitfield, Pennsylvania	M2.8	96 km	5 km
Aug 5, 2025	1 km N of Hillsdale, New Jersey	M2.8	120 km	12 km
Jul 1, 2009	3 km ESE of Pennsville, New Jersey	M2.8	75 km	5 km
Mar 11, 1995	0 km ENE of Landisville, Pennsylvania	M2.7	126 km	5 km
Jan 25, 2015	4 km ESE of Downingtown, Pennsylvania	M2.6	66 km	2 km
Jul 5, 1996	2 km NW of Chester Heights, Pennsylvania	M2.6	57 km	18 km
Oct 27, 2001	1 km NNW of Manhattan, New York	M2.6	106 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
2014	Arthur	Category 1	81 mph	292 km
2012	Sandy	Category 2	92 mph	255 km
2011	Irene	Category 1	75 mph	230 km
1991	Bob	Category 3	109 mph	217 km
1985	Gloria	Category 2	98 mph	114 km

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

Tornado History

329 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 8 fatalities, 228 injuries.

Date	Rating	Distance	Path	Fatalities
Sep 1, 2021	EF3	61 km	12.4 mi	0
Jul 29, 2021	EF3	8 km	3.4 mi	0
May 31, 1998	EF3	90 km	8.3 mi	0
Jul 27, 1994	EF3	52 km	2.0 mi	3
Jul 27, 1994	EF3	88 km	4.0 mi	0
Oct 18, 1990	EF3	37 km	0.5 mi	0
Jul 21, 1983	EF3	78 km	0.2 mi	0
Jul 26, 1981	EF3	87 km	3.3 mi	0
Sep 26, 1977	EF3	41 km	5.9 mi	0
Mar 21, 1976	EF3	93 km	0.5 mi	0
May 28, 1973	EF3	79 km	0.4 mi	0
May 28, 1973	EF3	78 km	0.4 mi	0
Apr 28, 1961	EF3	78 km	0.3 mi	0
Jun 24, 1960	EF3	17 km	12.9 mi	0
Mar 22, 1955	EF3	64 km	9.6 mi	1
Apr 1, 2023	EF2	55 km	1.6 mi	0
Apr 1, 2023	EF2	45 km	2.1 mi	0
Apr 1, 2023	EF2	75 km	0.1 mi	0
Feb 21, 2023	EF2	22 km	5.8 mi	0
Sep 1, 2021	EF2	100 km	5.9 mi	0

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

Tsunami History

2 tsunamis recorded within 500 km.

Year	Location	Cause	Max Wave	Deaths	Distance
1895	HIGH BRIDGE, NJ	Earthquake	—	—	56 km
1840	PHILADELPHIA, PENNSYLVANIA	Earthquake	—	—	47 km

Source: NOAA/NCEI Historical Tsunami Database.

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: GREENWOOD STATE FOREST (21,271 acres, 1995).

Year	Name	Acres Burned	Distance
1995	GREENWOOD STATE FOREST	21,271	66 km
2007	WARREN GROVE	15,315	72 km
2022	MULLICA RIVER FIRE	13,082	57 km
1999	BASS RIVER	12,129	68 km
2019	SPRING HILL FIRE	8,182	58 km
2023	ALLEN ROAD	6,213	68 km
1992	FORKED RIVER MOUTAIN APR	5,093	64 km
1992	POWER PLANT	4,928	69 km
1992	UNNAMED	4,470	40 km
2024	TEA TIME HILL	4,444	50 km
2006	UNNAMED	3,780	56 km
2017	PENN SWAMP FIRE	3,587	59 km
2023	JIMMYS WATER HOLE	3,585	50 km
1989	SIMM PLACE	3,262	60 km
2002	UNNAMED	2,824	39 km
2007	ATSION	2,705	53 km
1992	FOUR MILE COLONY	2,647	46 km
1996	UNNAMED	2,625	63 km
2010	FORT DIX RANGE 1-14	2,615	37 km
1990	UNNAMED	2,367	46 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	30°F (-1°C)	3.6 in	Coldest
February	34°F (1°C)	2.8 in	Driest
March	42°F (6°C)	4.0 in
April	52°F (11°C)	3.9 in
May	62°F (17°C)	4.3 in
June	71°F (22°C)	3.8 in
July	76°F (24°C)	4.7 in	Warmest, Wettest
August	75°F (24°C)	4.6 in
September	67°F (20°C)	4.0 in
October	56°F (13°C)	3.4 in
November	46°F (8°C)	3.7 in
December	37°F (3°C)	3.6 in

Langhorne Manor has a seasonal temperature swing of 45°F / from 30°F in January to 76°F in July. Total annual precipitation is 46.3 inches, with July being the wettest month (4.7") and February the driest (2.8").

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