Fort Myers, Florida, Average Temperature Rankings, March 2020 1991-2020 Degrees Fahrenheit 1 75.4 69.8 5.6 120 1 1969 2020 2019 2020 highest 2 72.7 68.3 4.4 119 1 1958 2020 2019 2020 highest 3 71.2 66.9 4.3 114 1 1958 2020 2019 2020 highest 4 71.1 66.9 4.2 109 2 1958 2017 2019 2017 top-tenth 5 71.5 67.7 3.8 108 1 1958 2020 2019 2020 highest 6 73.4 69.4 4.0 108 1 1958 2020 2019 2020 highest 7 74.8 71.1 3.7 107 1 1958 2020 2019 2020 highest 8 75.9 72.6 3.3 107 1 1958 2020 2019 2020 highest 9 76.7 73.7 3.0 107 1 1958,1969 2020 2019 2020 highest 10 77.3 74.5 2.8 107 1 1969 2020 2019 2020 highest 11 77.6 74.9 2.7 107 1 1969 2020 2019 2020 highest 12 77.4 74.8 2.6 106 1 1969 2020 2019 2020 highest 18 75.4 72.9 2.5 95 2 1978 2021 2019 2020 top-tenth 24 76.9 74.7 2.2 93 2 1978 2021 2017 2020 top-tenth 36 -99 74.5 -99 -99 -99 1970 2022 normal 48 -99 74.5 -99 -99 -99 1969,1970,1971 2022 normal 60 -99 74.5 -99 -99 -99 1970 2017 normal