Wilmington, Delaware May 2012 Average Temperature Rankings
1991-2020
Degrees Fahrenheit
1
67.2
63.5
3.7
77
5
1967
2004
2011
2004
top-tenth
2
60.3
58.6
1.7
70
10
1967
2019
2009
2011
top-third
3
57.4
53.5
3.9
77
1
1950,1967
2012
2011
2012
highest
4
53.1
49.0
4.1
77
1
1934,1978
2012
2011
2012
highest
5
49.9
45.9
4.0
76
2
1978
2023
2011
2012
top-tenth
6
48.5
44.6
3.9
77
1
1978
2012
2011
2012
highest
7
48.7
44.9
3.8
76
1
1978
2012
2011
2012
highest
8
49.6
46.4
3.2
75
1
1978
2012
2011
2012
highest
9
51.9
48.9
3.0
75
1
1978
2012
2011
2012
highest
10
54.2
51.6
2.6
75
1
1934
2012,2023
2011
2012
highest
2023
11
56.6
53.9
2.7
75
1
1963
2012
2011
2012
highest
12
58.1
55.5
2.6
75
1
1963,1978
2012
2011
2012
highest
18
53.2
51.8
1.4
69
4
1979
2017,2023
2011
2012
top-tenth
24
56.9
55.4
1.5
68
3
1978
2017,2023
2011
2012
top-tenth
36
56.4
55.3
1.1
60
6
1979
2023
2011
2012
top-tenth
2020
48
56.1
55.3
0.8
55
6
1964,1966,1970
2023
2011
2012
top-tenth
2018
60
56.1
55.2
0.9
53
5
1967
2023
2011
2012
top-tenth
2019