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Weather & Climate in Clarendon, PA
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Clarendon experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 25°F in January while summers reach 70°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 47.0 inches (wetter than the 38-inch national average). The area receives 71.6 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 1,409 feet.
Temperature
25°F Jan (-4°C)
70°F Jul (21°C)
| Annual Average | 48.3°F |
| 11% below US avg | |
| January Average | 25°F (-4°C) |
| July Average | 70°F (21°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 1,409 ft (429 m) |
| Area | 0.1 sq mi (0.3 km²) |
| Population Density | 1,009/sq mi |
| Coordinates | 41.7806°N, 79.0940°W |
| Timezone | America/New_York |
| County | Warren County County |
| Nearest Airport | Bradford Regional (BFD) 23 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 40.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 65.6 / 100 |
| Social Vulnerability | 50.9 / 100 |
| Community Resilience | 79.8 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Moderate |
| Ice Storm | Very Low |
| Drought | No Rating |
| Cold Wave | Relatively 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 | 112 km | 5 km |
| Jan 26, 2001 | 8 km NNW of Edgewood, Ohio | M3.9 | 143 km | 5 km |
| Feb 6, 2023 | 1 km NE of West Seneca, New York | M3.8 | 123 km | 6 km |
| Jun 3, 2001 | 3 km N of Edgewood, Ohio | M3.4 | 139 km | 5 km |
| May 25, 1995 | 3 km NW of Amherst, New York | M3.0 | 137 km | 5 km |
| Jun 16, 2004 | 11 km NNW of Angola on the Lake, New York | M2.9 | 109 km | 6 km |
| Jun 5, 2009 | 4 km SSE of Attica, New York | M2.9 | 136 km | 5 km |
| Feb 23, 1995 | 3 km W of Ashtabula, Ohio | M2.9 | 144 km | 5 km |
| Mar 8, 2008 | 5 km ENE of Clarence Center, New York | M2.7 | 145 km | 6 km |
| Jan 20, 2001 | 0 km NNW of Edgewood, Ohio | M2.6 | 140 km | 5 km |
| Mar 15, 2022 | 5 km SSW of Warsaw, New York | M2.6 | 128 km | 5 km |
| Jul 17, 2003 | 1 km SE of Edgewood, Ohio | M2.5 | 138 km | 3 km |
| Dec 17, 1990 | 5 km SSE of Middleboro, Pennsylvania | M2.5 | 87 km | 5 km |
| Jan 25, 1999 | New York | M2.5 | 147 km | 3 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
187 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 18 fatalities, 196 injuries.
| Date | Rating | Distance | Path | Fatalities |
| May 31, 1985 | EF4 | 51 km | 29.0 mi | 7 |
| May 31, 1985 | EF4 | 76 km | 69.0 mi | 0 |
| May 31, 1985 | EF4 | 73 km | 28.0 mi | 0 |
| May 31, 1985 | EF4 | 18 km | 29.0 mi | 4 |
| Jul 21, 2003 | EF3 | 98 km | 2.5 mi | 0 |
| May 31, 1985 | EF3 | 30 km | 13.0 mi | 0 |
| May 31, 1985 | EF3 | 59 km | 8.0 mi | 0 |
| May 31, 1985 | EF3 | 34 km | 17.0 mi | 0 |
| May 31, 1985 | EF3 | 88 km | 23.0 mi | 2 |
| May 2, 1983 | EF3 | 60 km | 28.0 mi | 2 |
| May 2, 1972 | EF3 | 100 km | 7.9 mi | 0 |
| Jun 2, 1971 | EF3 | 86 km | 29.3 mi | 0 |
| Jun 20, 1969 | EF3 | 52 km | 84.1 mi | 0 |
| Jul 24, 1967 | EF3 | 79 km | 11.4 mi | 0 |
| Sep 3, 1963 | EF3 | 50 km | 8.4 mi | 0 |
| May 15, 1961 | EF3 | 54 km | 3.0 mi | 0 |
| Jul 10, 2024 | EF2 | 95 km | 3.2 mi | 0 |
| Apr 14, 2019 | EF2 | 16 km | 18.0 mi | 0 |
| Oct 2, 2018 | EF2 | 71 km | 4.1 mi | 0 |
| Nov 14, 2011 | EF2 | 71 km | 2.9 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
2 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (628 acres, 1990).
| Year | Name | Acres Burned | Distance |
| 1990 | UNNAMED | 628 | 42 km |
| 2021 | UNNAMED | 586 | 30 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 25°F (-4°C) | 3.0 in | |
| February | 24°F (-4°C) | 2.6 in | Coldest, Driest |
| March | 33°F (1°C) | 3.4 in | |
| April | 44°F (7°C) | 3.6 in | |
| May | 55°F (13°C) | 4.1 in | |
| June | 63°F (17°C) | 5.0 in | Wettest |
| July | 70°F (21°C) | 4.4 in | Warmest |
| August | 66°F (19°C) | 4.3 in | |
| September | 59°F (15°C) | 4.2 in | |
| October | 48°F (9°C) | 3.4 in | |
| November | 38°F (3°C) | 4.0 in | |
| December | 28°F (-2°C) | 3.7 in |
Clarendon has a seasonal temperature swing of 46°F / from 24°F in February to 70°F in July. Total annual precipitation is 45.6 inches, with June being the wettest month (5.0") and February the driest (2.6").