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Weather & Climate in Hutchinson Island South, FL
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Hutchinson Island South has a warm climate with an average annual temperature of 75°F (24°C). Winters average 65°F in January while summers reach 83°F in July / relatively mild seasonal variation. The area gets 330 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 58.9 inches (wetter than the 38-inch national average). Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 6 feet.
Temperature
65°F Jan (18°C)
83°F Jul (28°C)
| Annual Average | 75.2°F |
| 39% above US avg | |
| January Average | 65°F (18°C) |
| July Average | 83°F (28°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 6 ft (2 m) |
| Area | 48.1 sq mi (124.6 km²) |
| Population Density | 1,009/sq mi |
| Coordinates | 27.3053°N, 80.2202°W |
| Timezone | America/New_York |
| County | St. Lucie County County |
| Nearest Airport | Treasure Coast International (FPR) 16 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 96.1 / 100 |
| Social Vulnerability | 51.2 / 100 |
| Community Resilience | 49.6 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very High |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Moderate |
| Winter Weather | No Rating |
| Lightning | Very High |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Coastal Flood | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Hurricane History
19 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Milton | Category 3 | 121 mph | 138 km |
| 2022 | Ian | Category 5 | 161 mph | 97 km |
| 2022 | Nicole | Category 1 | 75 mph | 34 km |
| 2019 | Dorian | Category 5 | 178 mph | 160 km |
| 2017 | Irma | Category 4 | 132 mph | 157 km |
| 2016 | Matthew | Category 4 | 138 mph | 68 km |
| 2011 | Irene | Category 2 | 104 mph | 290 km |
| 2005 | Wilma | Category 3 | 127 mph | 46 km |
| 2005 | Katrina | Category 2 | 98 mph | 138 km |
| 2005 | Ophelia | Category 1 | 75 mph | 170 km |
| 2004 | Charley | Category 4 | 150 mph | 162 km |
| 2004 | Jeanne | Category 3 | 121 mph | 12 km |
| 2004 | Frances | Category 2 | 109 mph | 12 km |
| 1999 | Floyd | Category 4 | 132 mph | 196 km |
| 1999 | Dennis | Category 2 | 104 mph | 271 km |
| 1999 | Irene | Category 1 | 81 mph | 16 km |
| 1995 | Erin | Category 1 | 86 mph | 13 km |
| 1992 | Andrew | Category 5 | 167 mph | 201 km |
| 1987 | Floyd | Category 1 | 75 mph | 247 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
389 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 12 fatalities, 234 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Oct 9, 2024 | EF3 | 84 km | 32.9 mi | 0 |
| Oct 9, 2024 | EF3 | 93 km | 15.5 mi | 0 |
| Oct 9, 2024 | EF3 | 22 km | 21.2 mi | 6 |
| Jan 24, 1979 | EF3 | 52 km | 9.6 mi | 0 |
| Oct 19, 1958 | EF3 | 70 km | 20.2 mi | 1 |
| Apr 15, 1958 | EF3 | 41 km | 14.8 mi | 0 |
| Sep 18, 1954 | EF3 | 17 km | 0.1 mi | 2 |
| Oct 9, 2024 | EF2 | 74 km | 2.6 mi | 0 |
| Oct 9, 2024 | EF2 | 65 km | 8.5 mi | 0 |
| Oct 9, 2024 | EF2 | 72 km | 65.5 mi | 0 |
| Oct 9, 2024 | EF2 | 25 km | 5.7 mi | 0 |
| Apr 29, 2023 | EF2 | 55 km | 2.6 mi | 0 |
| Apr 6, 2017 | EF2 | 68 km | 4.1 mi | 0 |
| Aug 18, 2008 | EF2 | 76 km | 2.7 mi | 0 |
| Oct 24, 2005 | EF2 | 88 km | 0.3 mi | 0 |
| Nov 15, 1994 | EF2 | 70 km | 2.5 mi | 1 |
| Aug 8, 1983 | EF2 | 68 km | 0.3 mi | 0 |
| Mar 21, 1983 | EF2 | 61 km | 5.0 mi | 0 |
| Mar 7, 1983 | EF2 | 99 km | 5.0 mi | 0 |
| Feb 2, 1983 | EF2 | 6 km | 2.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (49,716 acres, 1989).
| Year | Name | Acres Burned | Distance |
| 1989 | UNNAMED | 49,716 | 84 km |
| 2007 | MOONSHINE BAY | 38,664 | 94 km |
| 2008 | MYAKKA CUT | 36,877 | 94 km |
| 2007 | FROG LIGHT | 20,174 | 77 km |
| 1990 | UNNAMED | 16,253 | 97 km |
| 2021 | KISSIMMEE BEND NORTH | 13,782 | 93 km |
| 1992 | UNNAMED | 11,488 | 94 km |
| 2008 | UNNAMED | 11,294 | 65 km |
| 2008 | UNNAMED | 9,670 | 54 km |
| 1996 | UNNAMED | 9,427 | 89 km |
| 2024 | APQ RECREATION AREA RX 0506 | 8,901 | 92 km |
| 2008 | LOXBURN12 | 7,929 | 95 km |
| 2007 | LOXBURN1 | 7,264 | 99 km |
| 2011 | TRAIL 3 | 6,854 | 49 km |
| 2011 | UNNAMED | 6,616 | 83 km |
| 2008 | SAN FILIPPO | 6,376 | 75 km |
| 1994 | UNNAMED | 6,243 | 93 km |
| 1997 | UNNAMED | 6,073 | 75 km |
| 1992 | UNNAMED | 5,946 | 98 km |
| 2006 | CORBETT TRAIL | 5,882 | 48 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 65°F (18°C) | 2.5 in | |
| February | 65°F (18°C) | 2.9 in | Coldest |
| March | 69°F (20°C) | 3.6 in | |
| April | 72°F (22°C) | 2.2 in | Driest |
| May | 77°F (25°C) | 5.1 in | |
| June | 81°F (27°C) | 6.5 in | |
| July | 83°F (28°C) | 6.3 in | Warmest |
| August | 82°F (28°C) | 6.1 in | |
| September | 81°F (27°C) | 7.6 in | Wettest |
| October | 77°F (25°C) | 5.6 in | |
| November | 71°F (22°C) | 3.3 in | |
| December | 66°F (19°C) | 2.4 in |
Hutchinson Island South has a seasonal temperature swing of 18°F / from 65°F in February to 83°F in July. Total annual precipitation is 54.1 inches, with September being the wettest month (7.6") and April the driest (2.2").