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Key Largo, FL weather and climate

Monroe County, FL · population 12,069 · about 23 ft elevation

Everything below is a 30 year average for 1991-2020, computed from daily climate history at Key Largo's own coordinates.

The year at a glance

Sunny days
241
clear or partly cloudy, per year
Precipitation
33 in
per year
Wet days
118
rain or snow per year
Snowfall
0 in
per year
Hot days
47
above 90 °F
Freezing nights
0
at or below 32 °F
Humidity
77%
average relative
Average temperature
78 °F
year round

Monthly temperatures

Average daily high and low for each month, in °F.

Daily highDaily low
708090JanMarMayJulSepNovDaily high, Jan: 76 °FDaily high, Feb: 78 °FDaily high, Mar: 80 °FDaily high, Apr: 83 °FDaily high, May: 85 °FDaily high, Jun: 88 °FDaily high, Jul: 90 °FDaily high, Aug: 90 °FDaily high, Sep: 89 °FDaily high, Oct: 86 °FDaily high, Nov: 81 °FDaily high, Dec: 78 °FDaily low, Jan: 63 °FDaily low, Feb: 65 °FDaily low, Mar: 67 °FDaily low, Apr: 71 °FDaily low, May: 74 °FDaily low, Jun: 77 °FDaily low, Jul: 79 °FDaily low, Aug: 79 °FDaily low, Sep: 78 °FDaily low, Oct: 75 °FDaily low, Nov: 70 °FDaily low, Dec: 66 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high767880838588909089868178
Daily low636567717477797978757066

Monthly precipitation

Total rain plus melted snow for each month, in inches.

0.02.04.0JanMarMayJulSepNovKey Largo, Jan: 1.4 inKey Largo, Feb: 1.3 inKey Largo, Mar: 1.3 inKey Largo, Apr: 1.5 inKey Largo, May: 3.0 inKey Largo, Jun: 4.5 inKey Largo, Jul: 2.9 inKey Largo, Aug: 4.3 inKey Largo, Sep: 5.2 inKey Largo, Oct: 4.4 inKey Largo, Nov: 1.8 inKey Largo, Dec: 1.3 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Key Largo1.41.31.31.53.04.52.94.35.24.41.81.3

Monthly sunny days

Days each month with clear or partly cloudy skies.

01020JanMarMayJulSepNovKey Largo, Jan: 22 daysKey Largo, Feb: 23 daysKey Largo, Mar: 26 daysKey Largo, Apr: 24 daysKey Largo, May: 24 daysKey Largo, Jun: 14 daysKey Largo, Jul: 16 daysKey Largo, Aug: 16 daysKey Largo, Sep: 13 daysKey Largo, Oct: 19 daysKey Largo, Nov: 23 daysKey Largo, Dec: 23 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Key Largo222326242414161613192323

Compare Key Largo with another city

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About this data

Figures are 30 year averages for 1991-2020. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).