Montpelier, Vermont, Average Temperature Rankings, May 2012 1991-2020 Degrees Fahrenheit 1 59.6 55.4 4.2 72 4 1967 2015 2011 1998 top-tenth 2 52.4 49.2 3.2 73 3 1967 2010 2011 2010 top-tenth 1991 3 48.6 42.8 5.8 75 1 1967 2012 2011 2012 highest 4 43.1 37.4 5.7 74 1 1967 2012 2011 2012 highest 5 39.1 33.7 5.4 73 1 1971 2012 2011 2012 highest 6 37.4 32.4 5.0 72 1 1971 2012 2011 2012 highest 7 38.1 32.9 5.2 72 1 1971 2012 2011 2012 highest 8 39.6 34.8 4.8 72 1 1971 2012 2011 2012 highest 9 42.2 37.5 4.7 72 1 1971 2012 2011 2012 highest 10 44.8 40.5 4.3 72 1 1971 2012 2011 2012 highest 11 47.1 43.0 4.1 71 1 1963 2012 2011 2012 highest 12 48.5 44.8 3.7 70 1 1963 2012 2011 2012 highest 18 42.8 40.8 2.0 64 3 1971 2017 2011 2012 top-tenth 24 46.5 45.0 1.5 61 4 1966,1967,1971,1978 2013 2011 2012 top-tenth 36 46.5 45.1 1.4 58 2 1967 2023 2011 2012 top-tenth 48 46.0 45.1 0.9 53 3 1966,1968 2013,2023 2011 2012 top-tenth 60 45.8 45.1 0.7 49 3 1967 2013,2023 2011 2012 top-tenth