Fort Myers, Florida, Average Temperature Rankings, May 2015 1991-2020 Degrees Fahrenheit 1 80.0 78.8 1.2 112 10 1921 2010,2021 2014 2012 top-tenth 2 79.3 76.5 2.8 120 1 1940 2015 2014 2015 highest 3 77.7 74.3 3.4 118 2 1931 2020 2014 2015 top-tenth 4 74.1 72.3 1.8 112 7 1958 2020 2014 2012 top-tenth 5 72.4 70.7 1.7 107 7 1958 2020 2014 2012 top-tenth 1991 6 71.6 70.0 1.6 103 7 1958 2020 2014 2012 top-tenth 7 71.1 70.2 0.9 96 12 1940,1958 2020 2013 2014 top-third 2002 8 71.8 71.1 0.7 96 12 1958 2020 2013 2014 top-third 9 72.8 72.2 0.6 95 12 1958 2020 2013 2014 top-third 1989 10 74.0 73.3 0.7 96 11 1958 2020 2013 2014 top-tenth 1949 11 74.8 74.1 0.7 97 10 1958,1977 2020 2014 2014 top-tenth 2014 12 75.4 74.8 0.6 97 10 1977 2020 2014 2014 top-tenth 2014 18 74.1 73.1 1.0 92 6 1941,1978 2020 2014 2015 top-tenth 24 75.4 74.7 0.7 89 6 1978 2020,2021 2014 2015 top-tenth 36 75.1 74.6 0.5 79 6 1970 2022 2013 2014 top-tenth 1991 48 75.3 74.5 0.8 73 4 1969,1970,1971 2022 2014 2015 top-tenth 60 75.1 74.5 0.6 69 3 1970 2022 2014 2015 top-tenth