June U.S. Percentage Areas Very Warm/Very Cold
%
1895
5.47
15.39
1896
19.85
0.24
1897
7.75
9.07
1898
6.58
0.00
1899
6.06
1.99
1900
21.71
0.00
1901
8.00
13.94
1902
14.25
23.25
1903
3.25
55.17
1904
0.00
12.98
1905
2.00
4.12
1906
3.18
15.24
1907
0.00
46.09
1908
0.28
20.05
1909
0.00
0.35
1910
2.06
19.87
1911
38.50
1.77
1912
0.00
31.00
1913
0.00
15.17
1914
23.39
3.51
1915
4.17
40.14
1916
3.90
36.09
1917
0.00
17.61
1918
49.92
4.89
1919
19.16
15.12
1920
0.00
5.13
1921
27.18
4.13
1922
8.31
0.00
1923
5.58
16.79
1924
11.69
16.04
1925
26.08
0.58
1926
11.48
20.25
1927
1.45
18.44
1928
0.00
45.39
1929
0.00
4.35
1930
2.94
2.91
1931
26.21
0.00
1932
1.40
0.61
1933
43.20
1.29
1934
38.67
3.98
1935
0.00
18.85
1936
28.09
0.84
1937
1.42
0.08
1938
1.70
1.10
1939
6.68
4.33
1940
23.10
7.04
1941
0.10
14.29
1942
0.23
5.73
1943
23.96
17.90
1944
16.92
17.55
1945
0.83
45.36
1946
1.66
1.38
1947
0.10
20.98
1948
4.31
1.67
1949
9.70
0.00
1950
1.09
0.00
1951
0.00
30.96
1952
42.71
7.28
1953
33.09
11.65
1954
3.92
10.95
1955
0.00
30.73
1956
32.64
0.61
1957
4.99
0.00
1958
6.37
22.19
1959
13.00
1.18
1960
14.50
0.00
1961
31.46
16.83
1962
0.00
0.00
1963
1.68
8.56
1964
0.00
0.19
1965
0.00
19.14
1966
0.00
11.32
1967
4.07
18.21
1968
0.00
1.89
1969
3.53
29.12
1970
6.65
2.26
1971
7.55
3.38
1972
0.00
17.62
1973
3.27
3.65
1974
19.60
25.63
1975
0.00
5.59
1976
4.75
19.42
1977
23.66
3.85
1978
0.94
0.00
1979
0.00
12.35
1980
13.12
14.03
1981
24.56
2.55
1982
1.61
39.00
1983
0.21
23.09
1984
0.97
0.65
1985
10.01
14.09
1986
26.98
2.04
1987
14.33
3.09
1988
31.51
1.36
1989
0.51
11.32
1990
22.59
0.00
1991
9.37
7.14
1992
7.74
29.47
1993
0.36
8.27
1994
30.07
0.00
1995
6.85
19.15
1996
11.61
0.00
1997
2.86
10.69
1998
21.23
18.82
1999
4.35
0.00
2000
13.27
1.27
2001
13.03
0.47
2002
22.56
0.59
2003
8.94
15.28
2004
3.37
6.41
2005
13.61
2.03
2006
35.64
0.00
2007
12.61
1.04
2008
22.45
0.00
2009
9.23
0.08
2010
35.36
0.00
2011
30.76
0.52
2012
27.04
2.07
2013
26.45
0.00
2014
12.55
0.00
2015
39.49
1.10
2016
41.24
0.00
2017
20.39
0.00
2018
43.04
0.00
2019
5.22
0.00
2020
18.16
0.00
2021
57.40
0.00
2022
33.36
0.00
2023
13.71
5.38