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Big Coppitt Key CDP, Florida

Official LSAD Designation: Big Coppitt Key CDP • Census GEOID: 1206350 • Monroe County

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for Big Coppitt Key CDP.

Reference Weather Station: KEY WEST NAS, FL US (ID: USW00012850) • Located 2.0 miles from community center • Elevation: 1.8 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 75.3° 65.7° 70.5° 2.15"
February 76.9° 67.5° 72.2° 1.51"
March 79.2° 69.9° 74.6° 1.41"
April 82.6° 73.3° 78.0° 2.36"
May 85.5° 76.9° 81.2° 3.44"
June 88.1° 79.7° 83.9° 4.91"
July 89.5° 81.0° 85.2° 4.28"
August 89.9° 81.0° 85.4° 5.54"
September 88.5° 79.9° 84.2° 8.08"
October 85.4° 77.6° 81.5° 5.71"
November 80.3° 72.8° 76.6° 2.34"
December 77.1° 68.7° 72.9° 1.89"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station KEY WEST NAS, FL US (ID: USW00012850) • 2.0 miles from community center .

This is the same reference station used for monthly normals.

Annual mean Annual mean of daily highs Annual mean of daily lows
Annual temperature history at KEY WEST NAS, FL US Year is the horizontal axis. Annual mean temperature in degrees Fahrenheit is the vertical axis. Dots show recorded years; lines connect consecutive available years only. Missing years are gaps, with no interpolation. Optional dashed lines show annual mean of daily highs and lows. Exact values appear in the data table below. 71.0 76.3 81.5 86.8 92.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2018: Annual mean 78.9°F 2022: Annual mean 84.1°F 2018: Annual mean of daily highs 84.0°F 2022: Annual mean of daily highs 89.2°F 2018: Annual mean of daily lows 73.8°F 2022: Annual mean of daily lows 78.9°F

Source: NOAA NCEI Global Summary of the Year.

Annual temperature data table (°F)
Annual station temperatures, 2010–2025. Unavailable means no reported value.
Year Annual mean (°F) Annual mean of daily highs (°F) Annual mean of daily lows (°F)
2010 Unavailable Unavailable Unavailable
2011 Unavailable Unavailable Unavailable
2012 Unavailable Unavailable Unavailable
2013 Unavailable Unavailable Unavailable
2014 Unavailable Unavailable Unavailable
2015 Unavailable Unavailable Unavailable
2016 Unavailable Unavailable Unavailable
2017 Unavailable Unavailable Unavailable
2018 78.9 84.0 73.8
2019 Unavailable Unavailable Unavailable
2020 Unavailable Unavailable Unavailable
2021 Unavailable Unavailable Unavailable
2022 84.1 89.2 78.9
2023 Unavailable Unavailable Unavailable
2024 Unavailable Unavailable Unavailable
2025 Unavailable Unavailable Unavailable
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.