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Weather & Climate in Swansboro, NC
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Swansboro enjoys a temperate climate with an average annual temperature of 60°F (16°C). Winters average 43°F in January while summers reach 78°F in July. The area gets 302 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 60.3 inches (wetter than the 38-inch national average). Air quality is rated Good with a median AQI of 40. The city sits at an elevation of 23 feet.
Temperature
43°F Jan (6°C)
78°F Jul (25°C)
| Annual Average | 60.4°F |
| 12% above US avg | |
| January Average | 43°F (6°C) |
| July Average | 78°F (25°C) |
| Sunny Days | 302 days/yr |
Geography
| Elevation | 23 ft (7 m) |
| Area | 0.5 sq mi (1.3 km²) |
| Population Density | 1,735/sq mi |
| Coordinates | 34.6936°N, 77.1343°W |
| Timezone | America/New_York |
| County | Onslow County County |
| Nearest Airport | Coastal Carolina Regional (EWN) 27 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 40.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 95.0 / 100 |
| Social Vulnerability | 14.4 / 100 |
| Community Resilience | 40.7 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very High |
| Earthquake | Relatively Low |
| Wildfire | Relatively Low |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Very High |
| Lightning | Relatively High |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Coastal Flood | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
2 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.6.
| Aug 6, 1994 | 4 km SSW of Bayboro, North Carolina | M3.6 | 55 km | 0 km |
| Feb 11, 2014 | 7 km NW of Hobucken, North Carolina | M2.9 | 81 km | 4 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Hurricane History
25 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2022 | Ian | Category 1 | 81 mph | 246 km |
| 2020 | Isaias | Category 1 | 92 mph | 153 km |
| 2019 | Dorian | Category 3 | 115 mph | 69 km |
| 2018 | Florence | Category 3 | 115 mph | 55 km |
| 2016 | Matthew | Category 1 | 92 mph | 66 km |
| 2014 | Arthur | Category 2 | 98 mph | 41 km |
| 2011 | Irene | Category 1 | 86 mph | 49 km |
| 2010 | Earl | Category 2 | 104 mph | 258 km |
| 2005 | Ophelia | Category 1 | 86 mph | 59 km |
| 2004 | Alex | Category 2 | 98 mph | 87 km |
| 2004 | Gaston | Category 1 | 75 mph | 296 km |
| 2004 | Charley | Category 1 | 81 mph | 175 km |
| 2003 | Isabel | Category 2 | 104 mph | 81 km |
| 1999 | Irene | Category 2 | 109 mph | 102 km |
| 1999 | Floyd | Category 2 | 104 mph | 48 km |
| 1999 | Dennis | Category 2 | 104 mph | 135 km |
| 1998 | Bonnie | Category 3 | 115 mph | 15 km |
| 1996 | Fran | Category 3 | 115 mph | 98 km |
| 1996 | Bertha | Category 2 | 104 mph | 55 km |
| 1994 | Gordon | Category 1 | 86 mph | 172 km |
Source: NOAA IBTrACS (Category 1+, 1980-2026).
Tornado History
389 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 25 fatalities, 634 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Mar 28, 1984 | EF4 | 92 km | 28.0 mi | 16 |
| Apr 25, 2014 | EF3 | 91 km | 21.0 mi | 0 |
| Apr 16, 2011 | EF3 | 23 km | 3.8 mi | 0 |
| Apr 16, 2011 | EF3 | 99 km | 20.4 mi | 0 |
| Mar 28, 1984 | EF3 | 90 km | 9.0 mi | 0 |
| Mar 4, 1977 | EF3 | 95 km | 4.9 mi | 0 |
| Mar 17, 1965 | EF3 | 35 km | 41.3 mi | 2 |
| Apr 8, 1957 | EF3 | 88 km | 8.0 mi | 0 |
| Aug 7, 2024 | EF2 | 98 km | 9.5 mi | 0 |
| Aug 7, 2024 | EF2 | 93 km | 4.7 mi | 0 |
| Sep 5, 2019 | EF2 | 9 km | 13.0 mi | 0 |
| Nov 24, 2018 | EF2 | 19 km | 2.8 mi | 0 |
| Sep 8, 2014 | EF2 | 72 km | 0.2 mi | 0 |
| Apr 25, 2014 | EF2 | 87 km | 1.1 mi | 0 |
| Nov 26, 2013 | EF2 | 33 km | 0.4 mi | 0 |
| Apr 16, 2011 | EF2 | 57 km | 2.4 mi | 0 |
| Apr 16, 2011 | EF2 | 31 km | 4.1 mi | 0 |
| May 11, 2008 | EF2 | 22 km | 5.0 mi | 0 |
| Feb 18, 2008 | EF2 | 92 km | 1.5 mi | 0 |
| Aug 13, 2004 | EF2 | 76 km | 5.0 mi | 3 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (77,768 acres, 1986).
| Year | Name | Acres Burned | Distance |
| 1986 | UNNAMED | 77,768 | 56 km |
| 2011 | JUNIPER ROAD | 31,511 | 54 km |
| 1994 | FISH DAY | 21,772 | 26 km |
| 1994 | UNNAMED | 7,944 | 69 km |
| 1985 | UNNAMED | 5,807 | 16 km |
| 2005 | WEST MARSH UNIT 3.3.1 | 4,867 | 77 km |
| 2015 | NCCDR FY15 RX WEST MARSH | 4,751 | 77 km |
| 1986 | UNNAMED | 4,031 | 72 km |
| 2007 | TRAINING FIRE | 3,843 | 66 km |
| 2007 | 3 4 1 RUMLEYS MARSH FY 07 | 3,556 | 80 km |
| 2024 | HIGHWAY 12 | 3,502 | 71 km |
| 2022 | NCCDR-FY22-RX-PRESCRIBED FIRE | 3,113 | 77 km |
| 2009 | CAROLINA BAY | 3,056 | 19 km |
| 1995 | UNNAMED | 3,042 | 68 km |
| 1985 | UNNAMED | 2,970 | 55 km |
| 1992 | GREAT LAKE | 2,843 | 19 km |
| 2020 | CRO BRIERY BRANCH C-5/6 RX | 2,783 | 32 km |
| 2016 | UNNAMED | 2,462 | 32 km |
| 1989 | UNNAMED | 2,420 | 64 km |
| 2002 | BT-11 | 2,193 | 68 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 43°F (6°C) | 4.7 in | Coldest |
| February | 47°F (8°C) | 4.1 in | |
| March | 54°F (12°C) | 4.1 in | |
| April | 61°F (16°C) | 3.1 in | Driest |
| May | 69°F (21°C) | 4.5 in | |
| June | 76°F (24°C) | 4.9 in | |
| July | 78°F (25°C) | 6.9 in | Wettest |
| August | 78°F (26°C) | 6.8 in | Warmest |
| September | 74°F (23°C) | 5.6 in | |
| October | 64°F (18°C) | 3.5 in | |
| November | 56°F (13°C) | 3.4 in | |
| December | 48°F (9°C) | 3.9 in |
Swansboro has a seasonal temperature swing of 35°F / from 43°F in January to 78°F in August. Total annual precipitation is 55.5 inches, with July being the wettest month (6.9") and April the driest (3.1").