Weather & Climate in Sewickley, PA

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

Sewickley experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 28°F in January while summers reach 74°F in July. The area gets 275 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 38.6 inches. The area receives 19.8 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 770 feet.

Temperature

28°F Jan (-2°C) 74°F Jul (23°C)

Annual Average	51.7°F
	4% below US avg
January Average	28°F (-2°C)
July Average	74°F (23°C)
Sunny Days	275 days/yr

Geography

Elevation	770 ft (235 m)
Area	0.4 sq mi (1.1 km²)
Population Density	3,850/sq mi
Coordinates	40.5397°N, 80.1789°W
Timezone	America/New_York
County	Beaver County County
Nearest Airport	Pittsburgh International (PIT) 4 miles away

Precipitation & Snow

Annual Rainfall 38.6"

1% above US avg

Snowfall 19.8"

Wettest Month (Jun) 4.02"

Driest Month (Feb) 2.24"

Air Quality

AQI Median	40.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Low
Risk Score	75.3 / 100
Social Vulnerability	37.7 / 100
Community Resilience	91.8 / 100

Hazard Breakdown

Tornado	Relatively Low
Hurricane	Very Low
Earthquake	Very Low
Wildfire	Very Low
Flood	Relatively Moderate
Hail	Relatively Moderate
Strong Wind	Relatively Moderate
Heat Wave	Relatively Low
Winter Weather	Relatively Low
Lightning	Relatively Moderate
Ice Storm	Relatively Moderate
Drought	No Rating
Cold Wave	Very Low
Landslide	Relatively Low
Avalanche	Very Low

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

Earthquake History

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

Sep 25, 1998	2 km SW of Adamsville, Pennsylvania	M4.5	108 km	5 km
Mar 12, 2007	Ohio	M3.7	130 km	5 km
Oct 16, 1993	8 km SSE of Madison, Ohio	M3.6	147 km	5 km
Aug 28, 2023	7 km SE of Madison, Ohio	M3.6	148 km	5 km
Jun 3, 2017	1 km WNW of Batesville, Ohio	M3.4	117 km	2 km
Apr 24, 2025	3 km S of Pleasant City, Ohio	M3.1	138 km	6 km
Apr 22, 2025	3 km ESE of Buffalo, Ohio	M3.1	132 km	5 km
Apr 2, 2017	5 km W of Graysville, Ohio	M3.0	133 km	4 km
Mar 30, 2024	2 km SSW of Maple Ridge, Ohio	M3.0	84 km	6 km
May 9, 2025	3 km S of Pleasant City, Ohio	M2.9	138 km	5 km
Aug 7, 2000	2 km S of Limaville, Ohio	M2.9	94 km	5 km
Apr 29, 2025	1 km SE of Pleasant City, Ohio	M2.8	135 km	2 km
May 17, 2010	2 km S of Boston Heights, Ohio	M2.7	136 km	5 km
Sep 11, 2024	4 km WNW of Claysville, Pennsylvania	M2.5	51 km	4 km

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

Tornado History

296 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 21 fatalities, 614 injuries.

Date	Rating	Distance	Path	Fatalities
Jun 2, 1998	EF4	98 km	36.5 mi	0
Jun 3, 1980	EF4	40 km	11.8 mi	0
May 31, 1985	EF3	40 km	39.0 mi	9
Oct 12, 1978	EF3	69 km	7.3 mi	0
Jul 11, 1976	EF3	61 km	11.8 mi	1
May 8, 1969	EF3	91 km	2.0 mi	1
Aug 3, 1963	EF3	35 km	0.1 mi	2
Aug 5, 1956	EF3	81 km	0.1 mi	2
Mar 1, 1955	EF3	91 km	2.5 mi	1
Jun 26, 2024	EF2	47 km	10.8 mi	0
May 11, 2024	EF2	32 km	5.8 mi	0
May 7, 2024	EF2	53 km	15.3 mi	0
Aug 25, 2023	EF2	89 km	2.0 mi	0
Aug 1, 2022	EF2	65 km	1.8 mi	0
Mar 31, 2022	EF2	75 km	8.6 mi	0
Oct 21, 2021	EF2	44 km	15.7 mi	0
Jul 29, 2021	EF2	70 km	6.2 mi	0
Jul 29, 2021	EF2	80 km	2.7 mi	0
Oct 2, 2018	EF2	80 km	1.6 mi	0
Mar 23, 2011	EF2	47 km	9.0 mi	0

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	28°F (-2°C)	2.5 in	Coldest
February	30°F (-1°C)	2.2 in	Driest
March	39°F (4°C)	3.1 in
April	50°F (10°C)	3.1 in
May	60°F (15°C)	3.9 in
June	68°F (20°C)	4.0 in	Wettest
July	74°F (23°C)	4.0 in	Warmest
August	71°F (22°C)	3.4 in
September	64°F (18°C)	3.2 in
October	53°F (11°C)	2.4 in
November	42°F (6°C)	3.0 in
December	33°F (0°C)	2.9 in

Sewickley has a seasonal temperature swing of 46°F / from 28°F in January to 74°F in July. Total annual precipitation is 37.8 inches, with June being the wettest month (4.0") and February the driest (2.2").

View full profile of Sewickley, PA →