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Has the climate in Key West changed?
Key West has warmed about 0.6°F since 2013.
About 0.4°F per decade, measured from Key West's official daily weather records, 2013–2025. Individual years still bounce around — some recent ones came in cool — but the long-term line has clearly risen.
What has actually changed
Each card compares the 1970s (the first ten years of the record) with recent years (the last ten) — the same span the headline and the chart use.
Key West's temperature, year by year
Average temperature for each year from 2013 to 2025.
Each bar is one year. Most recent years sit above the older ones. Some recent years still came in cool — warming is a slope, not a straight climb.
Methodology & sources
Temperature — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Key W Wfo (NOAA GHCN station USC00084571), inside the city.