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Eighty Four, PA

Full City Profile · Pennsylvania · Washington County County

3.4 /5.0
B Good
795 Population 120/sq mi density
$131,271 Median Income $45,692 per capita
$355,600 Home Value $397,018 Zillow
$850 Median Rent 25.0% income on rent
52°F Avg Temperature 275 sunny days/yr
145 Violent Crime/100K 447 property/100K
B
Overall
3.4 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
5.0 / 5.0
$131,271 median income, 0.0% unemployment
A+
Affordability
5.0 / 5.0
$355,600 home value, $850/mo rent
F
Safety
1.0 / 5.0
145 violent crimes/100K
C+
Education
2.6 / 5.0
19.6% bachelor's degree or higher
Eighty Four experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 28°F in January while summers reach 73°F in July. The area gets 275 sunny days per year. Annual precipitation totals 41.3 inches. The area receives 31.9 inches of snow annually. Air quality is rated Good with a median AQI of 40.

Temperature

28°F Jan (-2°C) 73°F Jul (23°C)
Annual Average51.5°F
5% below US avg
January Average28°F (-2°C)
July Average73°F (23°C)
Sunny Days275 days/yr

Geography

Elevation1,078 ft (329 m)
Area6.6 sq mi (17.1 km²)
Population Density120/sq mi
Coordinates40.1777°N, 80.1303°W
TimezoneAmerica/New_York
CountyWashington County County
Nearest AirportPittsburgh International (PIT)
22 miles away

Precipitation & Snow

Annual Rainfall 41.3"
9% above US avg
Snowfall 31.9"
Wettest Month (May) 3.98"
Driest Month (Feb) 2.32"

Air Quality

AQI Median40.0
RatingGood

Air Pollutants (EPA 2023)

Ozone (O₃)0.0454 ppm
NO₂ (Nitrogen Dioxide)11.5 ppb
SO₂ (Sulfur Dioxide)0.96 ppb
PM2.5 (Fine Particles)8.8 μg/m³

Natural Hazard Risk

Overall RiskRelatively Moderate
Risk Score83.1 / 100
Social Vulnerability22.7 / 100
Community Resilience87.3 / 100

Hazard Breakdown

Tornado Relatively Low
Hurricane Relatively Low
Earthquake Very Low
Wildfire Very Low
Flood Relatively Moderate
Hail Relatively Moderate
Strong Wind Relatively Low
Heat Wave Relatively Low
Winter Weather Very Low
Lightning Relatively High
Ice Storm Relatively Low
Drought Relatively Low
Cold Wave Very Low
Landslide Relatively Moderate
Avalanche Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

14 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.5. Most recent: M2.9 on May 9, 2025.

Sep 25, 1998 2 km SW of Adamsville, Pennsylvania M4.5 148 km
Jun 3, 2017 1 km WNW of Batesville, Ohio M3.4 103 km
Apr 24, 2025 3 km S of Pleasant City, Ohio M3.1 125 km
Apr 22, 2025 3 km ESE of Buffalo, Ohio M3.1 119 km
Aug 31, 2011 3 km SE of Lowell, Ohio M3.1 136 km
Apr 2, 2017 5 km W of Graysville, Ohio M3.0 111 km
Mar 30, 2024 2 km SSW of Maple Ridge, Ohio M3.0 112 km
May 9, 2025 3 km S of Pleasant City, Ohio M2.9 125 km
Aug 7, 2000 2 km S of Limaville, Ohio M2.9 122 km
Apr 29, 2025 1 km SE of Pleasant City, Ohio M2.8 123 km
Feb 3, 2025 0 km NE of Reno, Ohio M2.8 140 km
Aug 31, 2011 2 km NNW of Belmont, West Virginia M2.8 130 km
Sep 4, 2011 3 km N of Saint Marys, West Virginia M2.6 125 km
Sep 11, 2024 4 km WNW of Claysville, Pennsylvania M2.5 28 km
Source: USGS (M2.5+, 1990–2025)

Tornado History

260 tornadoes (EF0+) within 100 km since 1950. Strongest: EF4. Total: 15 fatalities, 576 injuries.

Date Rating Distance Fatalities
Jun 2, 1998 EF4 79 km 0
Jun 3, 1980 EF4 63 km 0
May 31, 1985 EF3 77 km 9
Jun 3, 1980 EF3 75 km 0
Oct 12, 1978 EF3 96 km 0
Jul 11, 1976 EF3 57 km 1
May 8, 1969 EF3 92 km 1
Aug 3, 1963 EF3 27 km 2
Jun 26, 2024 EF2 47 km 0
May 11, 2024 EF2 12 km 0
May 7, 2024 EF2 73 km 0
Feb 28, 2024 EF2 95 km 0
Aug 25, 2023 EF2 62 km 0
Aug 1, 2022 EF2 38 km 0
Mar 31, 2022 EF2 97 km 0
Oct 21, 2021 EF2 33 km 0
Jul 29, 2021 EF2 89 km 0
Jul 29, 2021 EF2 75 km 0
Oct 2, 2018 EF2 62 km 0
Mar 23, 2011 EF2 35 km 0
Source: NOAA SPC (EF0+, 1950–2024)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 28°F (-2°C) 2.5 in Coldest
February 30°F (-1°C) 2.3 in Driest
March 40°F (4°C) 3.4 in
April 50°F (10°C) 3.2 in
May 60°F (15°C) 4.0 in Wettest
June 68°F (20°C) 3.9 in
July 73°F (23°C) 3.9 in Warmest
August 71°F (22°C) 3.6 in
September 64°F (18°C) 3.1 in
October 53°F (11°C) 2.5 in
November 42°F (6°C) 3.0 in
December 33°F (0°C) 2.8 in

Eighty Four has a seasonal temperature swing of 44°F / from 28°F in January to 73°F in July. Total annual precipitation is 38.3 inches, with May being the wettest month (4.0") and February the driest (2.3").

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