Sign In Register

Weather & Climate in New Wilmington, PA

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

New Wilmington experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 28°F in January while summers reach 73°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 41.8 inches. The area receives 27.5 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 1,002 feet.

Temperature

28°F Jan (-2°C) 73°F Jul (23°C)
Annual Average51.1°F
5% below US avg
January Average28°F (-2°C)
July Average73°F (23°C)
Sunny Days275 days/yr

Geography

Elevation1,002 ft (305 m)
Area1.1 sq mi (2.7 km²)
Population Density2,182/sq mi
Coordinates41.1176°N, 80.3315°W
TimezoneAmerica/New_York
CountyMercer County County
Nearest AirportYoungstown/Warren Regional (YNG)
21 miles away

Precipitation & Snow

Annual Rainfall 41.8"
10% above US avg
Snowfall 27.5"
Wettest Month (Jun) 4.41"
Driest Month (Feb) 2.17"

Air Quality

AQI Median40.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively Low
Risk Score77.7 / 100
Social Vulnerability54.8 / 100
Community Resilience75.5 / 100

Hazard Breakdown

Tornado Relatively Low
Hurricane Relatively Low
Earthquake Very Low
Wildfire Very Low
Flood Relatively Moderate
Hail Relatively Moderate
Strong Wind Relatively Moderate
Heat Wave Very Low
Winter Weather Relatively Moderate
Lightning Relatively High
Ice Storm Relatively Low
Drought No Rating
Cold Wave Very Low
Landslide Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

37 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 42 km 5 km
Jun 10, 2019 1 km NW of Timberlake, Ohio M4.0 113 km 2 km
Jan 26, 2001 8 km NNW of Edgewood, Ohio M3.9 100 km 5 km
Mar 12, 2007 Ohio M3.7 90 km 5 km
Jun 30, 2003 6 km NW of Perry, Ohio M3.6 105 km 5 km
Oct 16, 1993 8 km SSE of Madison, Ohio M3.6 86 km 5 km
Aug 28, 2023 7 km SE of Madison, Ohio M3.6 87 km 5 km
Jun 20, 2006 9 km WNW of North Perry, Ohio M3.5 110 km 5 km
Mar 15, 1992 15 km NW of North Perry, Ohio M3.5 117 km 5 km
Jan 26, 1991 1 km NNE of Mayfield Heights, Ohio M3.4 105 km 5 km
Jun 3, 2001 3 km N of Edgewood, Ohio M3.4 95 km 5 km
Jun 30, 2004 2 km WNW of Madison, Ohio M3.3 97 km 5 km
Jul 1, 2013 5 km NNW of Fairport Harbor, Ohio M3.2 110 km 5 km
Jan 9, 2008 6 km WNW of Mentor-on-the-Lake, Ohio M3.1 114 km 5 km
Mar 11, 2006 8 km NNW of Mentor-on-the-Lake, Ohio M3.1 115 km 5 km
Mar 30, 2024 2 km SSW of Maple Ridge, Ohio M3.0 66 km 6 km
Jun 5, 2011 5 km W of Lodi, Ohio M3.0 147 km 5 km
Apr 25, 2010 2 km WNW of Madison, Ohio M3.0 97 km 5 km
Aug 7, 2000 2 km S of Limaville, Ohio M2.9 71 km 5 km
Feb 23, 1995 3 km W of Ashtabula, Ohio M2.9 93 km 5 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

331 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 76 fatalities, 1,155 injuries.

Date Rating Distance Path Fatalities
May 31, 1985 EF5 69 km 47.0 mi 18
May 31, 1985 EF4 43 km 56.2 mi 16
May 31, 1985 EF4 96 km 28.0 mi 0
May 31, 1985 EF4 81 km 14.0 mi 12
May 31, 1985 EF4 76 km 29.0 mi 7
Jun 3, 1980 EF4 73 km 11.8 mi 0
Jul 12, 1992 EF3 96 km 8.0 mi 0
May 31, 1985 EF3 66 km 15.0 mi 0
May 31, 1985 EF3 80 km 8.0 mi 0
May 31, 1985 EF3 95 km 17.0 mi 0
May 31, 1985 EF3 35 km 39.0 mi 9
May 31, 1985 EF3 67 km 23.0 mi 2
Oct 12, 1978 EF3 61 km 7.3 mi 0
Jun 3, 1973 EF3 92 km 12.9 mi 0
May 2, 1972 EF3 40 km 7.9 mi 0
Jun 2, 1971 EF3 85 km 29.3 mi 0
Aug 3, 1963 EF3 97 km 0.1 mi 2
Aug 5, 1956 EF3 31 km 0.1 mi 2
Mar 1, 1955 EF3 33 km 2.5 mi 1
Jun 26, 2024 EF2 98 km 10.8 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Tsunami History

1 tsunami recorded within 500 km. Highest wave on record: 2.7 m (9 ft).

Year Location Cause Max Wave Deaths Distance
1823 LAKE ERIE Unknown 2.7 m — 142 km
Source: NOAA/NCEI Historical Tsunami Database.

Wildfire History

2 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (628 acres, 1990).

Year Name Acres Burned Distance
1990 UNNAMED 628 85 km
2021 UNNAMED 586 97 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 28°F (-2°C) 2.4 in
February 28°F (-2°C) 2.2 in Coldest, Driest
March 37°F (3°C) 3.1 in
April 47°F (8°C) 3.3 in
May 58°F (14°C) 3.7 in
June 66°F (19°C) 4.4 in Wettest
July 73°F (23°C) 4.2 in Warmest
August 69°F (20°C) 3.7 in
September 62°F (17°C) 3.7 in
October 51°F (10°C) 2.9 in
November 41°F (5°C) 3.3 in
December 31°F (-1°C) 3.0 in

New Wilmington has a seasonal temperature swing of 46°F / from 28°F in February to 73°F in July. Total annual precipitation is 39.8 inches, with June being the wettest month (4.4") and February the driest (2.2").

View full profile of New Wilmington, PA →