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Weather & Climate in McKeesport, PA

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

McKeesport experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 30°F in January while summers reach 73°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 42.4 inches. Air quality is rated Good with a median AQI of 40. The city sits at an elevation of 998 feet.

Temperature

30°F Jan (-1°C) 73°F Jul (23°C)
Annual Average51.7°F
4% below US avg
January Average30°F (-1°C)
July Average73°F (23°C)
Sunny Days275 days/yr

Geography

Elevation998 ft (304 m)
Area2.1 sq mi (5.4 km²)
Population Density3,469/sq mi
Coordinates40.3419°N, 79.8450°W
TimezoneAmerica/New_York
CountyAllegheny County County
Nearest AirportPittsburgh International (PIT)
23 miles away

Precipitation & Snow

Annual Rainfall 42.4"
11% above US avg
Wettest Month (May) 3.98"
Driest Month (Feb) 2.32"

Air Quality

AQI Median40.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively High
Risk Score98.1 / 100
Social Vulnerability32.7 / 100
Community Resilience91.9 / 100

Hazard Breakdown

Tornado Relatively High
Hurricane Relatively Low
Earthquake Relatively Low
Wildfire Very Low
Flood Very High
Hail Very Low
Strong Wind Relatively High
Heat Wave Relatively Moderate
Winter Weather Relatively High
Lightning Relatively High
Ice Storm Very High
Drought No Rating
Cold Wave Very High
Landslide Relatively Low
Avalanche Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

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

Sep 25, 1998 2 km SW of Adamsville, Pennsylvania M4.5 136 km 5 km
Jun 3, 2017 1 km WNW of Batesville, Ohio M3.4 132 km 2 km
Apr 22, 2025 3 km ESE of Buffalo, Ohio M3.1 148 km 5 km
Apr 2, 2017 5 km W of Graysville, Ohio M3.0 141 km 4 km
Mar 30, 2024 2 km SSW of Maple Ridge, Ohio M3.0 120 km 6 km
Aug 7, 2000 2 km S of Limaville, Ohio M2.9 130 km 5 km
Sep 11, 2024 4 km WNW of Claysville, Pennsylvania M2.5 57 km 4 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

282 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 15 fatalities, 573 injuries.

Date Rating Distance Path Fatalities
Jun 2, 1998 EF4 62 km 36.5 mi 0
Jun 3, 1980 EF4 36 km 11.8 mi 0
May 31, 1998 EF3 93 km 13.0 mi 1
May 31, 1985 EF3 75 km 39.0 mi 9
Jun 3, 1980 EF3 90 km 29.8 mi 0
Jul 11, 1976 EF3 29 km 11.8 mi 1
Aug 3, 1963 EF3 4 km 0.1 mi 2
Jun 26, 2024 EF2 17 km 10.8 mi 0
May 11, 2024 EF2 20 km 5.8 mi 0
May 7, 2024 EF2 85 km 15.3 mi 0
Aug 25, 2023 EF2 54 km 2.0 mi 0
Aug 1, 2022 EF2 68 km 1.8 mi 0
Mar 31, 2022 EF2 68 km 8.6 mi 0
Oct 21, 2021 EF2 58 km 15.7 mi 0
Oct 2, 2018 EF2 44 km 1.6 mi 0
Mar 23, 2011 EF2 11 km 9.0 mi 0
Apr 28, 2002 EF2 58 km 5.0 mi 0
Apr 9, 2001 EF2 96 km 4.0 mi 0
Jun 2, 1998 EF2 68 km 12.0 mi 0
Jun 2, 1998 EF2 76 km 15.0 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 30°F (-1°C) 2.5 in Coldest
February 32°F (-0°C) 2.3 in Driest
March 40°F (5°C) 3.3 in
April 51°F (10°C) 3.3 in
May 61°F (16°C) 4.0 in Wettest
June 70°F (21°C) 3.9 in
July 73°F (23°C) 3.9 in Warmest
August 72°F (22°C) 3.6 in
September 65°F (19°C) 3.2 in
October 54°F (12°C) 2.6 in
November 43°F (6°C) 3.0 in
December 34°F (1°C) 2.9 in

McKeesport has a seasonal temperature swing of 44°F / from 30°F in January to 73°F in July. Total annual precipitation is 38.6 inches, with May being the wettest month (4.0") and February the driest (2.3").

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