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Weather & Climate in Mahaffey, PA

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

Mahaffey experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 23°F in January while summers reach 69°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 48.3 inches (wetter than the 38-inch national average). The area receives 63.0 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 40. The city sits at an elevation of 1,287 feet.

Temperature

23°F Jan (-5°C) 69°F Jul (21°C)
Annual Average47.1°F
13% below US avg
January Average23°F (-5°C)
July Average69°F (21°C)
Sunny Days275 days/yr

Geography

Elevation1,287 ft (392 m)
Area0.2 sq mi (0.4 km²)
Population Density626/sq mi
Coordinates40.8739°N, 78.7271°W
TimezoneAmerica/New_York
CountyCambria County County
Nearest AirportDubois Regional (DUJ)
23 miles away

Precipitation & Snow

Annual Rainfall 48.3"
27% above US avg
Snowfall 63.0"
Wettest Month (Jun) 4.49"
Driest Month (Feb) 2.80"

Air Quality

AQI Median40.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively Low
Risk Score76.4 / 100
Social Vulnerability60.4 / 100
Community Resilience96.5 / 100

Hazard Breakdown

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

Earthquake History

1 earthquake (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.4.

Jun 13, 2019 9 km N of Blain, Pennsylvania M3.4 115 km 27 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

181 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 8 fatalities, 277 injuries.

Date Rating Distance Path Fatalities
May 31, 1985 EF4 88 km 29.0 mi 4
May 31, 1985 EF4 34 km 69.0 mi 0
Jun 3, 1980 EF4 88 km 11.8 mi 0
Jul 11, 1976 EF3 88 km 11.8 mi 1
Sep 3, 1963 EF3 61 km 8.4 mi 0
Jun 26, 2024 EF2 95 km 10.8 mi 0
Mar 31, 2022 EF2 55 km 8.6 mi 0
Oct 2, 2018 EF2 48 km 4.1 mi 0
Oct 2, 2018 EF2 99 km 1.6 mi 0
Apr 28, 2002 EF2 54 km 5.0 mi 0
Aug 15, 1997 EF2 79 km 3.5 mi 0
Jul 19, 1996 EF2 36 km 6.0 mi 0
Jul 19, 1996 EF2 55 km 10.0 mi 0
Jul 19, 1996 EF2 20 km 27.4 mi 0
Sep 26, 1994 EF2 21 km 3.5 mi 0
Sep 18, 1991 EF2 80 km 4.0 mi 0
Nov 20, 1989 EF2 82 km 3.5 mi 0
Sep 23, 1986 EF2 60 km 0.5 mi 0
May 31, 1985 EF2 80 km 19.0 mi 0
May 31, 1985 EF2 98 km 6.0 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Wildfire History

5 wildfires (100+ acres) recorded within 100 km. Largest: FIELDS RUN (711 acres, 2018).

Year Name Acres Burned Distance
2018 FIELDS RUN 711 75 km
2006 FIVE MILE FIRE 658 87 km
1990 UNNAMED 628 95 km
2021 UNNAMED 586 99 km
2006 BEAR TRAP 561 87 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 23°F (-5°C) 2.9 in Coldest
February 26°F (-3°C) 2.8 in Driest
March 35°F (2°C) 3.7 in
April 46°F (8°C) 3.5 in
May 57°F (14°C) 4.2 in
June 65°F (18°C) 4.5 in Wettest
July 69°F (21°C) 4.3 in Warmest
August 67°F (20°C) 3.8 in
September 61°F (16°C) 3.9 in
October 50°F (10°C) 2.9 in
November 40°F (4°C) 3.6 in
December 29°F (-2°C) 3.4 in

Mahaffey has a seasonal temperature swing of 46°F / from 23°F in January to 69°F in July. Total annual precipitation is 43.6 inches, with June being the wettest month (4.5") and February the driest (2.8").

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