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Weather & Climate in Georgetown CDP (Lancaster County), PA
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Georgetown CDP (Lancaster County) experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 30°F in January while summers reach 75°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 48.4 inches (wetter than the 38-inch national average). The area receives 18.1 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 664 feet.
Temperature
30°F Jan (-1°C)
75°F Jul (24°C)
| Annual Average | 52.7°F |
| 2% below US avg | |
| January Average | 30°F (-1°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 664 ft (202 m) |
| Area | 4.1 sq mi (10.6 km²) |
| Population Density | 149/sq mi |
| Coordinates | 39.9418°N, 76.0812°W |
| Timezone | America/New_York |
| County | Harford County County |
| Nearest Airport | Reading Regional/Carl A Spaatz Field (RDG) 31 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 40.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 72.5 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 91.6 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively High |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Low |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
| Coastal Flood | Relatively Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
34 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.
| Apr 5, 2024 | 2024 Tewksbury, New Jersey Earthquake | M4.8 | 140 km | 3 km |
| Jan 16, 1994 | 2 km W of Sinking Spring, Pennsylvania | M4.6 | 43 km | 5 km |
| Jan 16, 1994 | 0 km E of Sinking Spring, Pennsylvania | M4.2 | 43 km | 5 km |
| Apr 5, 2024 | 7 km WSW of Gladstone, New Jersey | M3.7 | 141 km | 4 km |
| Jul 16, 2010 | 5 km NNW of Barnesville, Maryland | M3.6 | 137 km | 7 km |
| Jun 13, 2019 | 9 km N of Blain, Pennsylvania | M3.4 | 132 km | 27 km |
| Oct 23, 1990 | 3 km W of Hancocks Bridge, New Jersey | M3.2 | 69 km | 10 km |
| Aug 26, 2003 | 4 km NNW of Milford, New Jersey | M3.1 | 111 km | 3 km |
| Jun 3, 2010 | 4 km ENE of Franklintown, Pennsylvania | M3.1 | 78 km | 2 km |
| Nov 14, 1997 | 0 km S of Rothsville, Pennsylvania | M3.0 | 27 km | 5 km |
| Apr 24, 2009 | 1 km S of Franklintown, Pennsylvania | M2.9 | 82 km | 1 km |
| Apr 27, 2024 | 7 km WSW of Gladstone, New Jersey | M2.9 | 140 km | 5 km |
| May 24, 2024 | 6 km E of Califon, New Jersey | M2.9 | 141 km | 7 km |
| Jan 16, 1994 | 0 km SSE of Sinking Spring, Pennsylvania | M2.9 | 43 km | 5 km |
| Sep 15, 2019 | 5 km ESE of East Berlin, Pennsylvania | M2.8 | 71 km | 5 km |
| May 10, 1993 | 1 km NW of Whitfield, Pennsylvania | M2.8 | 45 km | 5 km |
| Jul 1, 2009 | 3 km ESE of Pennsville, New Jersey | M2.8 | 61 km | 5 km |
| Oct 25, 2009 | 4 km ENE of Franklintown, Pennsylvania | M2.8 | 78 km | 1 km |
| Oct 28, 1994 | 1 km E of Mount Vernon, Maryland | M2.7 | 84 km | — |
| Mar 11, 1995 | 0 km ENE of Landisville, Pennsylvania | M2.7 | 32 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
4 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 2.
| Year | Name | Category | Max Wind | Closest |
| 2011 | Irene | Category 1 | 75 mph | 225 km |
| 1991 | Bob | Category 3 | 109 mph | 289 km |
| 1986 | Charley | Category 1 | 75 mph | 293 km |
| 1985 | Gloria | Category 2 | 98 mph | 212 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
437 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 13 fatalities, 366 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Sep 1, 2021 | EF3 | 77 km | 12.4 mi | 0 |
| Jul 29, 2021 | EF3 | 94 km | 3.4 mi | 0 |
| Jul 14, 2004 | EF3 | 57 km | 7.5 mi | 0 |
| May 31, 1998 | EF3 | 62 km | 8.3 mi | 0 |
| Jul 19, 1996 | EF3 | 91 km | 2.2 mi | 0 |
| Jul 27, 1994 | EF3 | 35 km | 4.0 mi | 0 |
| Jul 27, 1994 | EF3 | 58 km | 2.0 mi | 3 |
| Jun 7, 1980 | EF3 | 80 km | 1.5 mi | 0 |
| Jun 18, 1970 | EF3 | 54 km | 1.9 mi | 1 |
| Jun 9, 1961 | EF3 | 95 km | 0.1 mi | 0 |
| Apr 28, 1961 | EF3 | 53 km | 0.3 mi | 0 |
| Mar 22, 1955 | EF3 | 39 km | 9.6 mi | 1 |
| Apr 5, 1952 | EF3 | 78 km | 17.5 mi | 0 |
| Nov 4, 1950 | EF3 | 29 km | 15.9 mi | 0 |
| Sep 1, 2021 | EF2 | 21 km | 5.9 mi | 0 |
| Sep 1, 2021 | EF2 | 74 km | 8.3 mi | 1 |
| Aug 4, 2020 | EF2 | 97 km | 20.8 mi | 0 |
| Oct 31, 2019 | EF2 | 48 km | 0.5 mi | 0 |
| May 28, 2019 | EF2 | 28 km | 3.1 mi | 0 |
| Feb 24, 2016 | EF2 | 9 km | 4.9 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 | — | — | 130 km |
| 1840 | PHILADELPHIA, PENNSYLVANIA | Earthquake | — | — | 77 km |
Source: NOAA/NCEI Historical Tsunami Database.
Wildfire History
5 wildfires (100+ acres) recorded within 100 km. Largest: KENTIS WEST (1,273 acres, 1991).
| Year | Name | Acres Burned | Distance |
| 1991 | KENTIS WEST | 1,273 | 97 km |
| 1988 | BOMBAY ISLAND | 1,020 | 94 km |
| 2012 | HOPEWELL FIRE | 812 | 41 km |
| 2015 | RAZOR FIRE | 728 | 99 km |
| 1985 | BOMBAY HOOK | 669 | 95 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 30°F (-1°C) | 3.3 in | Coldest |
| February | 31°F (-1°C) | 2.7 in | Driest |
| March | 40°F (4°C) | 3.4 in | |
| April | 50°F (10°C) | 3.7 in | |
| May | 60°F (16°C) | 4.3 in | |
| June | 69°F (21°C) | 4.2 in | |
| July | 75°F (24°C) | 4.4 in | Warmest, Wettest |
| August | 73°F (23°C) | 3.9 in | |
| September | 66°F (19°C) | 3.9 in | |
| October | 54°F (12°C) | 3.2 in | |
| November | 44°F (7°C) | 3.7 in | |
| December | 35°F (2°C) | 3.5 in |
Georgetown CDP (Lancaster County) has a seasonal temperature swing of 44°F / from 30°F in January to 75°F in July. Total annual precipitation is 44.3 inches, with July being the wettest month (4.4") and February the driest (2.7").