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Fairfield, PA

Full City Profile · Pennsylvania · Adams County County

2.9 /5.0
C+ Fair
638 Population 952/sq mi density
$59,063 Median Income $29,699 per capita
$219,000 Home Value $342,538 Zillow
$1,111 Median Rent 31.8% income on rent
51°F Avg Temperature 293 sunny days/yr
394 Violent Crime/100K 1,578 property/100K
C+
Overall
2.9 / 5.0
Fair overall score based on economy, affordability, safety and education
B+
Economy
3.5 / 5.0
$59,063 median income, 1.5% unemployment
A+
Affordability
4.6 / 5.0
$219,000 home value, $1,111/mo rent
F
Safety
1.0 / 5.0
394 violent crimes/100K (4% above avg)
C+
Education
2.6 / 5.0
20.2% bachelor's degree or higher
Fairfield experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 29°F in January while summers reach 74°F in July. The area gets 293 sunny days per year. Annual precipitation totals 46.4 inches. Air quality is rated Good with a median AQI of 40.

Temperature

29°F Jan (-2°C) 74°F Jul (23°C)
Annual Average51.3°F
5% below US avg
January Average29°F (-2°C)
July Average74°F (23°C)
Sunny Days293 days/yr

Geography

Elevation606 ft (185 m)
Area0.3 sq mi (0.7 km²)
Population Density952/sq mi
Coordinates39.7890°N, 77.3698°W
TimezoneAmerica/New_York
CountyAdams County County
Nearest AirportGettysburg Regional (GTY)
6 miles away

Precipitation & Snow

Annual Rainfall 46.4"
22% above US avg
Wettest Month (May) 4.17"
Driest Month (Feb) 2.87"

Air Quality

AQI Median40.0
RatingGood

Air Pollutants (EPA 2023)

Ozone (O₃)0.0480 ppm
NO₂ (Nitrogen Dioxide)3.5 ppb
SO₂ (Sulfur Dioxide)0.48 ppb
CO (Carbon Monoxide)0.17 ppm
PM2.5 (Fine Particles)10.5 μg/m³

Natural Hazard Risk

Overall RiskRelatively Low
Risk Score67.5 / 100
Social Vulnerability36.2 / 100
Community Resilience66.6 / 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 Low
Winter Weather Relatively Moderate
Lightning Relatively Low
Ice Storm Relatively Low
Drought Relatively Moderate
Cold Wave Relatively Low
Landslide Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

24 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.6. Most recent: M2.6 on Jun 25, 2021.

Jan 16, 1994 2 km W of Sinking Spring, Pennsylvania M4.6 128 km
Jan 16, 1994 0 km E of Sinking Spring, Pennsylvania M4.2 131 km
Jul 16, 2010 5 km NNW of Barnesville, Maryland M3.6 59 km
Jun 13, 2019 9 km N of Blain, Pennsylvania M3.4 71 km
Jun 3, 2010 4 km ENE of Franklintown, Pennsylvania M3.1 47 km
Jan 17, 2016 3 km NE of Ranson, West Virginia M3.0 65 km
Nov 14, 1997 0 km S of Rothsville, Pennsylvania M3.0 103 km
Apr 24, 2009 1 km S of Franklintown, Pennsylvania M2.9 42 km
Jan 16, 1994 0 km SSE of Sinking Spring, Pennsylvania M2.9 130 km
Sep 15, 2019 5 km ESE of East Berlin, Pennsylvania M2.8 42 km
May 10, 1993 1 km NW of Whitfield, Pennsylvania M2.8 131 km
Oct 25, 2009 4 km ENE of Franklintown, Pennsylvania M2.8 48 km
Oct 28, 1994 1 km E of Mount Vernon, Maryland M2.7 86 km
Mar 11, 1995 0 km ENE of Landisville, Pennsylvania M2.7 90 km
Mar 15, 1993 5 km W of Columbia, Maryland M2.7 74 km
Jan 25, 2015 4 km ESE of Downingtown, Pennsylvania M2.6 148 km
Jun 25, 2021 2 km SE of Woodlawn, Maryland M2.6 78 km
Jan 18, 1994 3 km SE of Clay, Pennsylvania M2.6 107 km
Oct 28, 1996 2 km W of Reinholds, Pennsylvania M2.6 117 km
Jan 13, 1990 6 km ENE of Eldersburg, Maryland M2.6 58 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

2 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 2. Most recent: Irene (2011, Cat 1).

Year Name Category Closest
2011 Irene Category 1 278 km
1985 Gloria Category 2 292 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tornado History

400 tornadoes (EF0+) within 100 km since 1950. Strongest: EF3. Total: 3 fatalities, 171 injuries.

Date Rating Distance Fatalities
Jul 14, 2004 EF3 87 km 0
Jul 19, 1996 EF3 46 km 0
May 22, 1983 EF3 14 km 0
Jun 7, 1980 EF3 34 km 0
Jun 9, 1961 EF3 92 km 0
Apr 16, 1961 EF3 32 km 0
Apr 5, 1952 EF3 33 km 0
Apr 19, 2019 EF2 43 km 0
Apr 19, 2019 EF2 85 km 0
Nov 2, 2018 EF2 52 km 0
May 23, 2011 EF2 97 km 0
Apr 28, 2011 EF2 97 km 0
Apr 28, 2011 EF2 52 km 0
Sep 18, 2004 EF2 86 km 0
Sep 17, 2004 EF2 97 km 0
Sep 17, 2004 EF2 73 km 0
Sep 17, 2004 EF2 46 km 0
Sep 24, 2001 EF2 34 km 0
Jul 19, 1996 EF2 54 km 0
May 29, 1995 EF2 84 km 0
Source: NOAA SPC (EF0+, 1950–2024)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 29°F (-2°C) 3.0 in Coldest
February 31°F (-0°C) 2.9 in Driest
March 40°F (4°C) 3.4 in
April 50°F (10°C) 3.5 in
May 60°F (16°C) 4.2 in Wettest
June 68°F (20°C) 4.2 in
July 74°F (23°C) 3.5 in Warmest
August 71°F (22°C) 3.5 in
September 65°F (18°C) 3.9 in
October 54°F (12°C) 3.5 in
November 44°F (6°C) 3.7 in
December 34°F (1°C) 3.2 in

Fairfield has a seasonal temperature swing of 45°F / from 29°F in January to 74°F in July. Total annual precipitation is 42.5 inches, with May being the wettest month (4.2") and February the driest (2.9").

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