Weather & Climate in Alleghenyville, PA

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

Alleghenyville experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 29°F in January while summers reach 74°F in July. The area gets 282 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 40. The city sits at an elevation of 498 feet.

Temperature

29°F Jan (-2°C) 74°F Jul (23°C)

Annual Average	52.0°F
	4% below US avg
January Average	29°F (-2°C)
July Average	74°F (23°C)
Sunny Days	282 days/yr

Geography

Elevation	498 ft (152 m)
Area	2.7 sq mi (7.0 km²)
Population Density	311/sq mi
Coordinates	40.2341°N, 75.9776°W
Timezone	America/New_York
County	Berks County County
Nearest Airport	Reading Regional/Carl A Spaatz Field (RDG) 10 miles away

Precipitation & Snow

Wettest Month (May) 4.41"

Driest Month (Feb) 2.80"

Air Quality

AQI Median	40.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Moderate
Risk Score	92.7 / 100
Social Vulnerability	48.5 / 100
Community Resilience	85.6 / 100

Hazard Breakdown

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

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

Earthquake History

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

Apr 5, 2024	2024 Tewksbury, New Jersey Earthquake	M4.8	115 km	3 km
Jan 16, 1994	2 km W of Sinking Spring, Pennsylvania	M4.6	12 km	5 km
Jan 16, 1994	0 km E of Sinking Spring, Pennsylvania	M4.2	11 km	5 km
Apr 5, 2024	7 km WSW of Gladstone, New Jersey	M3.7	116 km	4 km
Jun 13, 2019	9 km N of Blain, Pennsylvania	M3.4	131 km	27 km
Oct 23, 1990	3 km W of Hancocks Bridge, New Jersey	M3.2	90 km	10 km
Aug 26, 2003	4 km NNW of Milford, New Jersey	M3.1	85 km	3 km
Jan 9, 1992	4 km WNW of Robertsville, New Jersey	M3.1	140 km	8 km
Jun 3, 2010	4 km ENE of Franklintown, Pennsylvania	M3.1	86 km	2 km
Nov 14, 1997	0 km S of Rothsville, Pennsylvania	M3.0	25 km	5 km
Feb 3, 2009	1 km ESE of Victory Gardens, New Jersey	M3.0	142 km	0 km
Apr 24, 2009	1 km S of Franklintown, Pennsylvania	M2.9	91 km	1 km
Apr 27, 2024	7 km WSW of Gladstone, New Jersey	M2.9	116 km	5 km
May 24, 2024	6 km E of Califon, New Jersey	M2.9	116 km	7 km
Jan 16, 1994	0 km SSE of Sinking Spring, Pennsylvania	M2.9	10 km	5 km
Sep 15, 2019	5 km ESE of East Berlin, Pennsylvania	M2.8	87 km	5 km
May 10, 1993	1 km NW of Whitfield, Pennsylvania	M2.8	13 km	5 km
Jul 1, 2009	3 km ESE of Pennsville, New Jersey	M2.8	78 km	5 km
Oct 25, 2009	4 km ENE of Franklintown, Pennsylvania	M2.8	86 km	1 km
Oct 28, 1994	1 km E of Mount Vernon, Maryland	M2.7	117 km	—

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

Hurricane History

3 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	252 km
1991	Bob	Category 3	109 mph	295 km
1985	Gloria	Category 2	98 mph	204 km

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

Tornado History

418 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 9 fatalities, 299 injuries.

Date	Rating	Distance	Path	Fatalities
Sep 1, 2021	EF3	88 km	12.4 mi	0
Jul 29, 2021	EF3	83 km	3.4 mi	0
Jul 14, 2004	EF3	51 km	7.5 mi	0
May 31, 1998	EF3	28 km	8.3 mi	0
Jul 27, 1994	EF3	39 km	2.0 mi	3
Jul 27, 1994	EF3	59 km	4.0 mi	0
Jul 26, 1981	EF3	68 km	3.3 mi	0
Jun 7, 1980	EF3	95 km	1.5 mi	0
Jun 18, 1970	EF3	33 km	1.9 mi	1
Apr 28, 1961	EF3	72 km	0.3 mi	0
Mar 22, 1955	EF3	42 km	9.6 mi	1
Apr 5, 1952	EF3	98 km	17.5 mi	0
Nov 4, 1950	EF3	13 km	15.9 mi	0
Sep 1, 2021	EF2	64 km	8.3 mi	1
Sep 1, 2021	EF2	52 km	5.9 mi	0
Jul 29, 2021	EF2	88 km	6.3 mi	0
Aug 4, 2020	EF2	88 km	20.8 mi	0
Oct 31, 2019	EF2	53 km	0.5 mi	0
May 28, 2019	EF2	10 km	3.1 mi	0
Feb 24, 2016	EF2	25 km	4.9 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	—	—	104 km
1840	PHILADELPHIA, PENNSYLVANIA	Earthquake	—	—	82 km

Source: NOAA/NCEI Historical Tsunami Database.

Wildfire History

2 wildfires (100+ acres) recorded within 100 km. Largest: HOPEWELL FIRE (812 acres, 2012).

Year	Name	Acres Burned	Distance
2012	HOPEWELL FIRE	812	20 km
2015	RAZOR FIRE	728	66 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	29°F (-2°C)	3.4 in	Coldest
February	31°F (-1°C)	2.8 in	Driest
March	40°F (4°C)	3.5 in
April	50°F (10°C)	3.7 in
May	60°F (16°C)	4.4 in	Wettest
June	69°F (20°C)	4.3 in
July	74°F (23°C)	4.3 in	Warmest
August	72°F (22°C)	3.9 in
September	65°F (19°C)	4.1 in
October	54°F (12°C)	3.3 in
November	44°F (7°C)	3.8 in
December	34°F (1°C)	3.5 in

Alleghenyville has a seasonal temperature swing of 45°F / from 29°F in January to 74°F in July. Total annual precipitation is 45.0 inches, with May being the wettest month (4.4") and February the driest (2.8").

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