Weather & Climate in North Key Largo, FL
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
North Key Largo has a warm climate with an average annual temperature of 78°F (25°C). Winters average 69°F in January while summers reach 84°F in July / relatively mild seasonal variation. Annual precipitation totals 56.9 inches (wetter than the 38-inch national average). The city sits at an elevation of 13 feet.
Temperature
69°F Jan (21°C)
84°F Jul (29°C)
| Annual Average | 77.7°F |
| 44% above US avg | |
| January Average | 69°F (21°C) |
| July Average | 84°F (29°C) |
Geography
| Elevation | 13 ft (4 m) |
| Area | 19.6 sq mi (50.7 km²) |
| Population Density | 88/sq mi |
| Coordinates | 25.2608°N, 80.3216°W |
| Timezone | America/New_York |
| County | Miami-Dade County County |
| Nearest Airport | Miami International (MIA) 37 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Very High |
| Risk Score | 99.6 / 100 |
| Social Vulnerability | 75.9 / 100 |
| Community Resilience | 42.9 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Very High |
| Earthquake | Relatively Low |
| Wildfire | Relatively Moderate |
| Flood | Very High |
| Hail | Relatively High |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively High |
| Winter Weather | No Rating |
| Lightning | Very High |
| Drought | Relatively Moderate |
| Cold Wave | Very High |
| Landslide | Very Low |
| Coastal Flood | Very High |
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 |
| 2022 | Ian | Category 5 | 161 mph | 240 km |
| 2022 | Nicole | Category 1 | 75 mph | 233 km |
| 2020 | Isaias | Category 1 | 81 mph | 245 km |
| 2019 | Dorian | Category 5 | 178 mph | 250 km |
| 2017 | Irma | Category 4 | 132 mph | 130 km |
| 2016 | Matthew | Category 4 | 138 mph | 193 km |
| 2005 | Wilma | Category 3 | 127 mph | 125 km |
| 2005 | Rita | Category 3 | 109 mph | 174 km |
| 2005 | Katrina | Category 2 | 104 mph | 69 km |
| 2004 | Charley | Category 4 | 150 mph | 228 km |
| 2004 | Jeanne | Category 3 | 121 mph | 216 km |
| 2004 | Frances | Category 2 | 109 mph | 210 km |
| 2001 | Michelle | Category 2 | 92 mph | 225 km |
| 1999 | Irene | Category 1 | 81 mph | 73 km |
| 1998 | Georges | Category 2 | 104 mph | 169 km |
| 1995 | Erin | Category 1 | 86 mph | 225 km |
| 1992 | Andrew | Category 5 | 167 mph | 27 km |
| 1987 | Floyd | Category 1 | 75 mph | 25 km |
| 1985 | Kate | Category 2 | 104 mph | 274 km |
Source: NOAA IBTrACS (Category 1+, 1980-2026).
Tornado History
285 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 1 fatality, 225 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Feb 23, 1965 | EF3 | 95 km | 5.7 mi | 0 |
| Jun 17, 1959 | EF3 | 52 km | 12.7 mi | 0 |
| Apr 10, 1956 | EF3 | 83 km | 7.8 mi | 0 |
| Oct 18, 2011 | EF2 | 96 km | 1.1 mi | 0 |
| Aug 26, 2005 | EF2 | 99 km | 1.2 mi | 0 |
| Mar 27, 2003 | EF2 | 58 km | 6.0 mi | 1 |
| Nov 4, 1998 | EF2 | 24 km | 12.0 mi | 0 |
| Feb 2, 1998 | EF2 | 60 km | 21.0 mi | 0 |
| Mar 17, 1983 | EF2 | 94 km | 52.5 mi | 0 |
| May 24, 1979 | EF2 | 95 km | 3.0 mi | 0 |
| Dec 20, 1973 | EF2 | 20 km | 7.6 mi | 0 |
| Mar 4, 1972 | EF2 | 97 km | 2.0 mi | 0 |
| Jun 22, 1971 | EF2 | 60 km | 2.0 mi | 0 |
| Feb 19, 1968 | EF2 | 74 km | 5.7 mi | 0 |
| Oct 14, 1964 | EF2 | 91 km | 0.1 mi | 0 |
| May 26, 1961 | EF2 | 93 km | 0.5 mi | 0 |
| Sep 22, 1954 | EF2 | 86 km | 0.1 mi | 0 |
| Oct 9, 2024 | EF1 | 28 km | 2.9 mi | 0 |
| Sep 27, 2022 | EF1 | 82 km | 5.7 mi | 0 |
| May 24, 2020 | EF1 | 37 km | 4.8 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: INGRAHAM (85,437 acres, 1989).
| Year | Name | Acres Burned | Distance |
| 1989 | INGRAHAM | 85,437 | 51 km |
| 2011 | PRAIRIE FIRE | 67,959 | 72 km |
| 1985 | UNNAMED | 54,638 | 67 km |
| 2008 | MUSTANG CORNER | 38,600 | 50 km |
| 2007 | MFC SOUTH FIRE | 37,301 | 73 km |
| 2020 | MOONFISH | 25,819 | 77 km |
| 2001 | UNNAMED | 22,780 | 74 km |
| 2018 | FY 18 COASTAL PRAIRIES | 18,844 | 73 km |
| 1989 | DOF 305 | 17,106 | 56 km |
| 2018 | FY 18 RIVER OF GRASS NE | 16,282 | 61 km |
| 2010 | LOST PRAIRE RX | 13,549 | 86 km |
| 1991 | PACESDIKE | 12,722 | 92 km |
| 1989 | UNNAMED | 11,316 | 70 km |
| 2019 | SOUTH 41 TREATMENT 2 FY19 (LOSTMANS RX) | 11,279 | 87 km |
| 2007 | NE SLOUGH | 10,953 | 57 km |
| 2021 | FOUR SIXTEEN | 9,675 | 18 km |
| 2011 | AFTERNOON | 9,634 | 59 km |
| 2017 | HOLIDAY | 8,858 | 84 km |
| 2001 | LOPEZ | 8,777 | 42 km |
| 1985 | EASTBNDY | 8,523 | 37 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 69°F (21°C) | 2.1 in | Coldest |
| February | 71°F (22°C) | 2.0 in | Driest |
| March | 73°F (23°C) | 2.2 in | |
| April | 77°F (25°C) | 3.3 in | |
| May | 80°F (27°C) | 4.8 in | |
| June | 83°F (28°C) | 7.9 in | |
| July | 84°F (29°C) | 5.8 in | |
| August | 85°F (29°C) | 6.9 in | Warmest |
| September | 83°F (29°C) | 8.2 in | Wettest |
| October | 81°F (27°C) | 7.9 in | |
| November | 76°F (24°C) | 3.3 in | |
| December | 72°F (22°C) | 2.5 in |
North Key Largo has a seasonal temperature swing of 15°F / from 69°F in January to 85°F in August. Total annual precipitation is 56.9 inches, with September being the wettest month (8.2") and February the driest (2.0").