Climate at a Glance

City Rankings

Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of June 2021. For more information, please see Climatological Rankings.


Wilmington, Delaware

Average Temperature Rankings, May 1978

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  • Record Warmest
Period Value 1981-2010
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
May 1978
1-Month
60.9°F
(16.1°C)
63.0°F
(17.2°C)
-2.1°F
(-1.1°C)
15th Coolest Coolest since: 1976 1967
60th Warmest Warmest since: 1977 1991, 2004
Apr–May 1978
2-Month
56.0°F
(13.3°C)
58.3°F
(14.6°C)
-2.3°F
(-1.3°C)
9th Coolest Coolest since: 1971 1967
66th Warmest Warmest since: 1977 2019
Ties: 1956
Mar–May 1978
3-Month
50.1°F
(10.1°C)
53.3°F
(11.8°C)
-3.2°F
(-1.7°C)
4th Coolest Coolest since: 1967 1984
69th Warmest Warmest since: 1977 2012
Feb–May 1978
4-Month
43.4°F
(6.3°C)
48.8°F
(9.3°C)
-5.4°F
(-3.0°C)
1st Coolest Coolest to Date 1978
72nd Warmest Warmest since: 1977 2012
Jan–May 1978
5-Month
40.3°F
(4.6°C)
45.6°F
(7.6°C)
-5.3°F
(-3.0°C)
1st Coolest Coolest to Date 1978
72nd Warmest Warmest since: 1977 2012
Dec 1977–May 1978
6-Month
39.3°F
(4.1°C)
44.2°F
(6.8°C)
-4.9°F
(-2.7°C)
1st Coolest Coolest to Date 1978
71st Warmest Warmest since: 1977 2012
Nov 1977–May 1978
7-Month
40.4°F
(4.7°C)
44.5°F
(6.9°C)
-4.1°F
(-2.2°C)
1st Coolest Coolest to Date 1978
70th Warmest Warmest since: 1977 2012
Oct 1977–May 1978
8-Month
42.1°F
(5.6°C)
45.9°F
(7.7°C)
-3.8°F
(-2.1°C)
1st Coolest Coolest to Date 1978
70th Warmest Warmest since: 1977 2012
Sep 1977–May 1978
9-Month
45.2°F
(7.3°C)
48.4°F
(9.1°C)
-3.2°F
(-1.8°C)
1st Coolest Coolest to Date 1978
70th Warmest Warmest since: 1977 2012
Aug 1977–May 1978
10-Month
48.3°F
(9.1°C)
51.1°F
(10.6°C)
-2.8°F
(-1.5°C)
1st Coolest Coolest to Date 1978
70th Warmest Warmest since: 1977 2012
Jul 1977–May 1978
11-Month
50.9°F
(10.5°C)
53.5°F
(11.9°C)
-2.6°F
(-1.4°C)
1st Coolest Coolest since: 1963 1963, 1978
70th Warmest Warmest since: 1977 2012
Ties: 1963
Jun 1977–May 1978
12-Month
52.5°F
(11.4°C)
55.1°F
(12.8°C)
-2.6°F
(-1.4°C)
1st Coolest Coolest to Date 1978
70th Warmest Warmest since: 1977 2012
Dec 1976–May 1978
18-Month
49.1°F
(9.5°C)
51.4°F
(10.8°C)
-2.3°F
(-1.3°C)
2nd Coolest Coolest to Date 1979
66th Warmest Warmest since: 1977 2017
Jun 1976–May 1978
24-Month
52.8°F
(11.6°C)
55.1°F
(12.8°C)
-2.3°F
(-1.2°C)
1st Coolest Coolest to Date 1978
66th Warmest Warmest since: 1977 2017
Jun 1975–May 1978
36-Month
53.8°F
(12.1°C)
55.1°F
(12.8°C)
-1.3°F
(-0.7°C)
6th Coolest Coolest since: 1970 1979
57th Warmest Warmest since: 1977 2018
Ties: 1970
Jun 1974–May 1978
48-Month
54.0°F
(12.2°C)
55.0°F
(12.8°C)
-1.0°F
(-0.6°C)
10th Coolest Coolest since: 1971 1980
49th Warmest Warmest since: 1977 2019, 2020
Ties: 1965, 1971, 1982
Jun 1973–May 1978
60-Month
54.5°F
(12.5°C)
55.1°F
(12.8°C)
-0.6°F
(-0.3°C)
17th Coolest Coolest since: 1973 1981
39th Warmest Warmest since: 1977 2020
Ties: 1961, 1962, 1973

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: City Time Series, published July 2021, retrieved on July 28, 2021 from https://www.ncdc.noaa.gov/cag/