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Weather & Climate in Stone Harbor, NJ

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

Stone Harbor enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 36°F in January while summers reach 77°F in July. The area gets 297 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Air quality is rated Good with a median AQI of 39. The city sits at an elevation of 2 feet.

Temperature

36°F Jan (2°C) 77°F Jul (25°C)
Annual Average55.7°F
3% above US avg
January Average36°F (2°C)
July Average77°F (25°C)
Sunny Days297 days/yr

Geography

Elevation2 ft (1 m)
Area0.8 sq mi (2.0 km²)
Population Density601/sq mi
Coordinates39.0417°N, 74.7688°W
TimezoneAmerica/New_York
CountyCape May County County
Nearest AirportAtlantic City International (ACY)
31 miles away

Precipitation & Snow

Wettest Month (Aug) 4.21"
Driest Month (Jun) 3.03"

Air Quality

AQI Median39.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively Moderate
Risk Score91.0 / 100
Social Vulnerability37.2 / 100
Community Resilience98.8 / 100

Hazard Breakdown

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

Earthquake History

6 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.2.

Oct 23, 1990 3 km W of Hancocks Bridge, New Jersey M3.2 82 km 10 km
Jul 1, 2009 3 km ESE of Pennsville, New Jersey M2.8 91 km 5 km
Jan 25, 2015 4 km ESE of Downingtown, Pennsylvania M2.6 131 km 2 km
Jul 5, 1996 2 km NW of Chester Heights, Pennsylvania M2.6 115 km 18 km
Feb 9, 2023 29 km E of Greenbackville, Virginia M2.6 115 km 11 km
Feb 26, 1993 2 km SW of Marlton, New Jersey M2.5 94 km 5 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Hurricane History

10 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.

Year Name Category Max Wind Closest
2014 Arthur Category 1 92 mph 195 km
2012 Sandy Category 2 92 mph 159 km
2011 Irene Category 1 75 mph 107 km
2010 Earl Category 1 81 mph 276 km
1999 Floyd Category 1 275 km
1998 Bonnie Category 1 75 mph 264 km
1993 Emily Category 3 115 mph 235 km
1991 Bob Category 3 115 mph 154 km
1986 Charley Category 1 81 mph 186 km
1985 Gloria Category 2 98 mph 75 km
Source: NOAA IBTrACS (Category 1+, 1980–2026).

Tornado History

132 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 3 fatalities, 100 injuries.

Date Rating Distance Path Fatalities
Apr 1, 2023 EF3 82 km 14.3 mi 1
Sep 1, 2021 EF3 82 km 12.4 mi 0
Jul 21, 1983 EF3 82 km 0.2 mi 0
Apr 28, 1961 EF3 98 km 0.3 mi 0
Jul 29, 2021 EF2 94 km 4.2 mi 0
Aug 4, 2020 EF2 64 km 35.8 mi 0
Apr 15, 2019 EF2 88 km 6.2 mi 0
Aug 20, 1999 EF2 72 km 0.4 mi 0
Aug 21, 1993 EF2 66 km 1.5 mi 0
Jul 31, 1992 EF2 65 km 4.0 mi 0
May 10, 1990 EF2 54 km 0.5 mi 0
Aug 17, 1988 EF2 97 km 1.5 mi 0
Jul 21, 1987 EF2 38 km 0.5 mi 0
Jul 18, 1984 EF2 75 km 1.5 mi 0
Jul 21, 1983 EF2 83 km 1.0 mi 2
Jun 9, 1977 EF2 61 km 0.2 mi 0
Jul 13, 1975 EF2 64 km 1.5 mi 0
Aug 27, 1971 EF2 19 km 28.7 mi 0
Nov 4, 1970 EF2 46 km 0.5 mi 0
Jan 27, 1967 EF2 70 km 0.5 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Tsunami History

1 tsunami recorded within 500 km.

Year Location Cause Max Wave Deaths Distance
1840 PHILADELPHIA, PENNSYLVANIA Earthquake 92 km
Source: NOAA/NCEI Historical Tsunami Database.

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: GREENWOOD STATE FOREST (21,271 acres, 1995).

Year Name Acres Burned Distance
1995 GREENWOOD STATE FOREST 21,271 98 km
2007 WARREN GROVE 15,315 82 km
2022 MULLICA RIVER FIRE 13,082 72 km
1999 BASS RIVER 12,129 74 km
2019 SPRING HILL FIRE 8,182 88 km
2023 ALLEN ROAD 6,213 72 km
1992 POWER PLANT 4,928 100 km
2024 TEA TIME HILL 4,444 84 km
2006 UNNAMED 3,780 76 km
2017 PENN SWAMP FIRE 3,587 72 km
1989 SIMM PLACE 3,262 87 km
2007 ATSION 2,705 76 km
1992 FOUR MILE COLONY 2,647 93 km
1996 UNNAMED 2,625 72 km
1990 UNNAMED 2,367 81 km
1996 UNNAMED 2,122 81 km
1997 UNNAMED 2,121 70 km
1993 UNNAMED 1,860 81 km
1997 UNNAMED 1,833 81 km
2008 SAUNDERS DITCH 1,814 76 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 36°F (2°C) 3.5 in Coldest
February 36°F (2°C) 3.1 in
March 43°F (6°C) 3.9 in
April 52°F (11°C) 3.5 in
May 61°F (16°C) 3.4 in
June 70°F (21°C) 3.0 in Driest
July 77°F (25°C) 3.5 in Warmest
August 74°F (24°C) 4.2 in Wettest
September 68°F (20°C) 3.2 in
October 57°F (14°C) 3.1 in
November 48°F (9°C) 3.3 in
December 39°F (4°C) 3.5 in

Stone Harbor has a seasonal temperature swing of 41°F / from 36°F in January to 77°F in July. Total annual precipitation is 41.1 inches, with August being the wettest month (4.2") and June the driest (3.0").

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