Wyoming May Temperature by Year

This page is a list of the average statewide temperature in the month of May in Wyoming for each year from 1895–2023. It is a statewide average over the entire territory of the state, based on data from the NOAA.
State:
Month:
What Was the Hottest May in Wyoming History?
1934 was the warmest May in Wyoming history. Statewide, the average daily high temperature was 73.5 °F, and the average low was 40.7 °F.
What Was the Coldest May in Wyoming History?
1917 was the coolest May in Wyoming history. Statewide, the average daily high temperature was 53.6 °F, and the average low was 32.5 °F.
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Year Rank High (°F) Low (°F)
2023 6 66.5 39.7
2022 92 59.3 34.1
2021 62 62.2 35.4
2020 33 63.9 36.7
2019 120 55.7 33.2
2018 8 66.1 39.7
2017 56 62.6 35.9
2016 72 60.5 35.2
2015 87 57.7 36.3
2014 38 63.1 37.1
2013 30 63.4 37.3
2012 39 64.5 35.6
2011 122 55.1 33.4
2010 125 56.1 31.9
2009 39 63.7 36.4
2008 90 59.0 34.6
2007 23 65.2 36.9
2006 21 66.1 36.3
2005 72 60.7 35.1
2004 53 62.8 36.0
2003 42 63.0 36.5
2002 76 62.0 33.5
2001 19 65.6 36.9
2000 19 64.6 38.0
1999 92 59.2 34.1
1998 30 64.2 36.5
1997 48 63.3 35.6
1996 85 58.7 35.5
1995 120 54.9 33.8
1994 3 68.5 39.3
1993 25 63.8 37.7
1992 9 67.0 38.5
1991 68 60.1 36.9
1990 96 59.8 33.5
1989 48 63.2 35.8
1988 25 65.0 36.6
1987 9 65.3 40.0
1986 78 61.6 33.5
1985 14 66.4 37.4
1984 60 62.6 35.4
1983 119 56.4 32.5
1982 96 58.9 34.3
1981 76 58.3 37.1
1980 62 60.6 37.1
1979 81 60.1 34.7
1978 99 57.6 34.7
1977 48 62.6 36.4
1976 34 64.0 36.3
1975 114 57.2 32.9
1974 72 62.1 33.7
1973 81 61.2 33.6
1972 69 61.3 35.0
1971 81 59.8 35.1
1970 60 62.6 35.4
1969 14 67.2 36.6
1968 113 57.6 32.7
1967 111 57.0 33.8
1966 18 67.5 35.4
1965 99 58.1 34.4
1964 56 62.1 36.2
1963 27 64.4 37.0
1962 42 61.8 37.7
1961 48 62.3 36.8
1960 53 63.5 35.2
1959 99 58.2 34.2
1958 2 68.8 39.6
1957 72 58.2 37.6
1956 21 64.0 38.5
1955 48 63.2 35.9
1954 53 63.0 35.8
1953 122 55.8 32.6
1952 47 62.5 37.0
1951 59 61.6 36.6
1950 128 55.6 31.1
1949 34 62.3 38.1
1948 34 64.2 36.2
1947 42 63.2 36.4
1946 116 56.7 33.2
1945 69 61.1 35.2
1944 34 63.3 37.1
1943 108 58.1 33.2
1942 107 57.7 33.8
1941 13 65.6 38.7
1940 17 66.6 36.7
1939 11 67.2 37.7
1938 89 58.2 35.6
1937 24 64.8 37.0
1936 4 69.4 38.3
1935 127 53.8 33.7
1934 1 73.5 40.7
1933 112 57.2 33.3
1932 42 62.9 36.6
1931 84 61.0 33.6
1930 96 58.8 34.4
1929 110 59.1 32.0
1928 16 64.8 38.8
1927 99 58.3 34.1
1926 27 62.9 38.5
1925 29 64.1 37.2
1924 99 59.9 32.5
1923 66 61.4 36.0
1922 78 59.4 35.7
1921 62 60.4 37.2
1920 85 58.3 35.8
1919 30 65.2 35.7
1918 92 59.6 33.8
1917 129 53.6 32.5
1916 122 56.8 31.5
1915 108 56.8 34.5
1914 41 62.8 37.0
1913 56 61.3 37.0
1912 104 58.0 34.0
1911 62 62.0 35.5
1910 67 62.2 35.0
1909 118 57.2 32.1
1908 105 58.1 33.5
1907 125 55.4 32.6
1906 78 59.6 35.6
1905 117 55.5 33.9
1904 69 60.2 36.3
1903 114 56.4 33.7
1902 42 62.5 37.0
1901 5 66.0 40.9
1900 12 66.5 38.0
1899 105 58.3 33.2
1898 87 57.6 36.4
1897 7 68.1 37.8
1896 92 59.5 34.0
1895 90 59.7 33.9