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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. 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 57.0 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 13 feet.

Temperature

69°F Jan (21°C) 84°F Jul (29°C)
Annual Average77.7°F
44% above US avg
January Average69°F (21°C)
July Average84°F (29°C)
Sunny Days330 days/yr

Geography

Elevation13 ft (4 m)
Area19.6 sq mi (50.7 km²)
Population Density88/sq mi
Coordinates25.2608°N, 80.3216°W
TimezoneAmerica/New_York
CountyMiami-Dade County County
Nearest AirportMiami International (MIA)
37 miles away

Precipitation & Snow

Annual Rainfall 57.0"
50% above US avg
Wettest Month (Jun) 8.90"
Driest Month (Dec) 1.30"

Air Quality

AQI Median41.0
RatingGood

Natural Hazard Risk

Overall RiskVery High
Risk Score99.6 / 100
Social Vulnerability75.9 / 100
Community Resilience42.9 / 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) 1.9 in
February 68°F (20°C) 1.8 in Coldest
March 71°F (22°C) 1.8 in
April 74°F (24°C) 2.4 in
May 78°F (26°C) 5.6 in
June 81°F (27°C) 8.9 in Wettest
July 84°F (29°C) 5.3 in Warmest
August 83°F (28°C) 7.0 in
September 82°F (28°C) 7.8 in
October 79°F (26°C) 6.0 in
November 74°F (23°C) 2.6 in
December 70°F (21°C) 1.3 in Driest

North Key Largo has a seasonal temperature swing of 16°F / from 68°F in February to 84°F in July. Total annual precipitation is 52.3 inches, with June being the wettest month (8.9") and December the driest (1.3").

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