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Weather & Climate in Harleigh, PA
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Harleigh experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 27°F in January while summers reach 72°F in July. The area gets 271 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 51.9 inches (wetter than the 38-inch national average). The area receives 27.3 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 1,660 feet.
Temperature
27°F Jan (-3°C)
72°F Jul (22°C)
| Annual Average | 50.0°F |
| 7% below US avg | |
| January Average | 27°F (-3°C) |
| July Average | 72°F (22°C) |
| Sunny Days | 271 days/yr |
Geography
| Elevation | 1,660 ft (506 m) |
| Area | 0.6 sq mi (1.5 km²) |
| Population Density | 1,730/sq mi |
| Coordinates | 40.9862°N, 75.9703°W |
| Timezone | America/New_York |
| County | Carbon County County |
| Nearest Airport | Hazleton Regional (HZL) 1 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 40.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 59.4 / 100 |
| Social Vulnerability | 35.0 / 100 |
| Community Resilience | 61.2 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| 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
28 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.
| Apr 5, 2024 | 2024 Tewksbury, New Jersey Earthquake | M4.8 | 107 km | 3 km |
| Jan 16, 1994 | 2 km W of Sinking Spring, Pennsylvania | M4.6 | 73 km | 5 km |
| Jan 16, 1994 | 0 km E of Sinking Spring, Pennsylvania | M4.2 | 73 km | 5 km |
| Apr 5, 2024 | 7 km WSW of Gladstone, New Jersey | M3.7 | 108 km | 4 km |
| Jun 13, 2019 | 9 km N of Blain, Pennsylvania | M3.4 | 144 km | 27 km |
| Aug 26, 2003 | 4 km NNW of Milford, New Jersey | M3.1 | 84 km | 3 km |
| Jun 3, 2010 | 4 km ENE of Franklintown, Pennsylvania | M3.1 | 131 km | 2 km |
| Nov 14, 1997 | 0 km S of Rothsville, Pennsylvania | M3.0 | 96 km | 5 km |
| Feb 3, 2009 | 1 km ESE of Victory Gardens, New Jersey | M3.0 | 122 km | 0 km |
| Apr 24, 2009 | 1 km S of Franklintown, Pennsylvania | M2.9 | 136 km | 1 km |
| Apr 27, 2024 | 7 km WSW of Gladstone, New Jersey | M2.9 | 108 km | 5 km |
| Jan 16, 1994 | 0 km SSE of Sinking Spring, Pennsylvania | M2.9 | 74 km | 5 km |
| May 24, 2024 | 6 km E of Califon, New Jersey | M2.9 | 107 km | 7 km |
| Sep 15, 2019 | 5 km ESE of East Berlin, Pennsylvania | M2.8 | 142 km | 5 km |
| May 10, 1993 | 1 km NW of Whitfield, Pennsylvania | M2.8 | 71 km | 5 km |
| Jun 10, 2025 | 10 km NW of Forksville, Pennsylvania | M2.8 | 87 km | 8 km |
| Oct 25, 2009 | 4 km ENE of Franklintown, Pennsylvania | M2.8 | 131 km | 1 km |
| Mar 11, 1995 | 0 km ENE of Landisville, Pennsylvania | M2.7 | 105 km | 5 km |
| Jan 25, 2015 | 4 km ESE of Downingtown, Pennsylvania | M2.6 | 113 km | 2 km |
| Jan 18, 1994 | 3 km SE of Clay, Pennsylvania | M2.6 | 91 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
1 hurricane (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 1.
| Year | Name | Category | Max Wind | Closest |
| 1985 | Gloria | Category 2 | 98 mph | 229 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
290 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 7 fatalities, 128 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Jul 14, 2004 | EF3 | 94 km | 7.5 mi | 0 |
| Jun 2, 1998 | EF3 | 71 km | 26.0 mi | 2 |
| May 31, 1998 | EF3 | 57 km | 8.3 mi | 0 |
| May 31, 1998 | EF3 | 81 km | 20.0 mi | 0 |
| Jul 27, 1994 | EF3 | 92 km | 2.0 mi | 3 |
| Jul 26, 1981 | EF3 | 41 km | 3.3 mi | 0 |
| Mar 21, 1976 | EF3 | 66 km | 0.5 mi | 0 |
| Jun 18, 1970 | EF3 | 71 km | 1.9 mi | 1 |
| Nov 4, 1950 | EF3 | 88 km | 15.9 mi | 0 |
| May 28, 2019 | EF2 | 92 km | 3.1 mi | 0 |
| Apr 14, 2019 | EF2 | 43 km | 3.7 mi | 0 |
| Jun 13, 2018 | EF2 | 30 km | 2.9 mi | 0 |
| Feb 25, 2017 | EF2 | 34 km | 12.5 mi | 0 |
| Jul 8, 2014 | EF2 | 76 km | 6.7 mi | 0 |
| Apr 28, 2011 | EF2 | 82 km | 1.1 mi | 0 |
| Jul 23, 2010 | EF2 | 91 km | 25.7 mi | 0 |
| Jul 29, 2009 | EF2 | 61 km | 4.6 mi | 0 |
| Dec 1, 2006 | EF2 | 14 km | 20.0 mi | 0 |
| May 31, 1998 | EF2 | 75 km | 2.0 mi | 0 |
| May 31, 1998 | EF2 | 79 km | 3.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Tsunami History
2 tsunamis recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1895 | HIGH BRIDGE, NJ | Earthquake | — | — | 98 km |
| 1840 | PHILADELPHIA, PENNSYLVANIA | Earthquake | — | — | 147 km |
Source: NOAA/NCEI Historical Tsunami Database.
Wildfire History
9 wildfires (100+ acres) recorded within 100 km. Largest: 16 MILE (7,896 acres, 2016).
| Year | Name | Acres Burned | Distance |
| 2016 | 16 MILE | 7,896 | 73 km |
| 2009 | PENOBSCOT | 2,091 | 25 km |
| 2004 | CRYSTAL LAKE | 1,838 | 22 km |
| 2012 | HOPEWELL FIRE | 812 | 88 km |
| 2020 | SEVEN PINES | 790 | 57 km |
| 2015 | RAZOR FIRE | 728 | 33 km |
| 2015 | PIPELINE 1 | 666 | 29 km |
| 2016 | BEAR TOWN | 649 | 66 km |
| 1999 | WORTHINGTO | 514 | 72 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 27°F (-3°C) | 3.1 in | |
| February | 25°F (-4°C) | 3.0 in | Coldest, Driest |
| March | 34°F (1°C) | 3.4 in | |
| April | 45°F (7°C) | 4.1 in | |
| May | 56°F (13°C) | 4.8 in | |
| June | 64°F (18°C) | 4.9 in | Wettest |
| July | 72°F (22°C) | 4.3 in | Warmest |
| August | 68°F (20°C) | 4.4 in | |
| September | 61°F (16°C) | 4.4 in | |
| October | 50°F (10°C) | 3.7 in | |
| November | 40°F (5°C) | 4.2 in | |
| December | 30°F (-1°C) | 3.5 in |
Harleigh has a seasonal temperature swing of 48°F / from 25°F in February to 72°F in July. Total annual precipitation is 47.9 inches, with June being the wettest month (4.9") and February the driest (3.0").