Fort Wayne, Indiana, Average Temperature Rankings, March 2012 1991-2020 Degrees Fahrenheit 1 52.6 38.4 14.2 83 1 1960 2012 2011 2012 highest 2 42.9 33.5 9.4 83 1 1978 2012 2011 2012 highest 3 38.5 30.8 7.7 83 1 1978 2012 2011 2012 highest 4 37.6 30.7 6.9 83 1 1978 2012 2011 2012 highest 5 39.3 32.9 6.4 82 1 1978 2012 2011 2012 highest 6 41.6 36.3 5.3 81 1 1978 2012 2011 2012 highest 7 44.6 40.3 4.3 81 1 1977,1978 2012,2016,2017 2011 2012 highest 2016,2017 8 48.1 44.2 3.9 80 2 1977 2017 2011 2012 top-tenth 9 51.7 47.5 4.2 80 1 1977 2012 2011 2012 highest 10 53.7 49.8 3.9 80 1 1977 2012 2011 2012 highest 11 54.5 50.8 3.7 80 1 1977 2012 2011 2012 highest 12 54.2 50.7 3.5 80 1 1977 2012 2011 2012 highest 18 47.5 45.9 1.6 76 3 1978 2017 2011 2012 top-tenth 2018 24 52.8 50.7 2.1 77 2 1978 2017 2011 2012 top-tenth 2013 36 51.8 50.7 1.1 74 3 1979 2018 2011 2012 top-tenth 2019,2022 48 51.4 50.7 0.7 69 6 1980 2019 2011 2002 top-tenth 2002 60 51.3 50.6 0.7 68 5 1981 2020 2011 2012 top-tenth 2019