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Weather & Climate in Addison, PA
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Addison experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 28°F in January while summers reach 72°F in July. The area gets 293 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 47.2 inches (wetter than the 38-inch national average). The area receives 61.2 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 2,153 feet.
Temperature
28°F Jan (-2°C)
72°F Jul (22°C)
| Annual Average | 50.4°F |
| 7% below US avg | |
| January Average | 28°F (-2°C) |
| July Average | 72°F (22°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 2,153 ft (656 m) |
| Area | 0.2 sq mi (0.5 km²) |
| Population Density | 463/sq mi |
| Coordinates | 39.7452°N, 79.3343°W |
| Timezone | America/New_York |
| County | Garrett County County |
| Nearest Airport | Greater Cumberland Regional (CBE) 32 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 40.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 16.0 / 100 |
| Social Vulnerability | 48.4 / 100 |
| Community Resilience | 57.1 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Hurricane | Relatively Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Low |
| Ice Storm | Very Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Relatively Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
4 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.0.
| Jan 17, 2016 | 3 km NE of Ranson, West Virginia | M3.0 | 138 km | 5 km |
| Sep 11, 2024 | 4 km WNW of Claysville, Pennsylvania | M2.5 | 105 km | 4 km |
| Aug 15, 2010 | 19 km ESE of Burnsville, West Virginia | M2.5 | 140 km | 17 km |
| Aug 21, 2010 | 19 km WNW of Helvetia, West Virginia | M2.5 | 140 km | 11 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
197 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 6 fatalities, 206 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Jun 2, 1998 | EF4 | 35 km | 36.5 mi | 0 |
| May 31, 1998 | EF3 | 22 km | 13.0 mi | 1 |
| Jun 3, 1980 | EF3 | 54 km | 29.8 mi | 0 |
| Jul 11, 1976 | EF3 | 69 km | 11.8 mi | 1 |
| May 19, 1967 | EF3 | 41 km | 0.3 mi | 1 |
| Aug 3, 1963 | EF3 | 79 km | 0.1 mi | 2 |
| Jun 26, 2024 | EF2 | 78 km | 10.8 mi | 0 |
| May 11, 2024 | EF2 | 85 km | 5.8 mi | 0 |
| Aug 25, 2023 | EF2 | 26 km | 2.0 mi | 0 |
| Oct 2, 2018 | EF2 | 45 km | 1.6 mi | 0 |
| Mar 23, 2011 | EF2 | 69 km | 9.0 mi | 0 |
| Apr 28, 2002 | EF2 | 92 km | 5.0 mi | 0 |
| Jun 2, 1998 | EF2 | 47 km | 15.0 mi | 0 |
| Jun 2, 1998 | EF2 | 27 km | 12.0 mi | 0 |
| Jun 2, 1998 | EF2 | 15 km | 15.0 mi | 0 |
| Aug 15, 1997 | EF2 | 65 km | 3.5 mi | 0 |
| Jun 30, 1990 | EF2 | 81 km | 0.2 mi | 0 |
| Oct 1, 1986 | EF2 | 41 km | 4.5 mi | 0 |
| May 22, 1983 | EF2 | 76 km | 38.0 mi | 0 |
| Jul 26, 1981 | EF2 | 92 km | 0.1 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
7 wildfires (100+ acres) recorded within 100 km. Largest: NEW CREEK MTN (1,689 acres, 2001).
| Year | Name | Acres Burned | Distance |
| 2001 | NEW CREEK MTN | 1,689 | 83 km |
| 2013 | SMOKE HOLE FIRE | 1,436 | 98 km |
| 2014 | BEAR DEN | 945 | 58 km |
| 2024 | SPRING RUN | 847 | 95 km |
| 1994 | ELKHORN TOWER | 696 | 96 km |
| 2001 | SOUTH BRANCH | 519 | 73 km |
| 2005 | UNNAMED | 510 | 49 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 28°F (-2°C) | 3.1 in | Coldest |
| February | 29°F (-2°C) | 2.9 in | Driest |
| March | 37°F (3°C) | 3.9 in | |
| April | 47°F (9°C) | 4.1 in | |
| May | 57°F (14°C) | 4.4 in | |
| June | 65°F (18°C) | 4.2 in | |
| July | 72°F (22°C) | 4.8 in | Warmest, Wettest |
| August | 68°F (20°C) | 4.0 in | |
| September | 62°F (16°C) | 3.6 in | |
| October | 51°F (10°C) | 3.1 in | |
| November | 41°F (5°C) | 3.5 in | |
| December | 31°F (-0°C) | 3.5 in |
Addison has a seasonal temperature swing of 44°F / from 28°F in January to 72°F in July. Total annual precipitation is 45.2 inches, with July being the wettest month (4.8") and February the driest (2.9").