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 August 2022. For more information, please see Climatological Rankings.


Wilmington, Delaware

Average Temperature Rankings, May 1991

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  • Record Warmest
Period Value 1981-2010
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
May 1991
1-Month
68.6°F
(20.3°C)
62.8°F
(17.1°C)
5.8°F
(3.2°C)
74th Coolest Coolest since: 1990 1967
2nd Warmest Warmest to Date 2004
Apr–May 1991
2-Month
61.4°F
(16.3°C)
58.1°F
(14.5°C)
3.3°F
(1.8°C)
73rd Coolest Coolest since: 1990 1967
3rd Warmest Warmest since: 1985 2019
Ties: 1985
Mar–May 1991
3-Month
55.7°F
(13.2°C)
53.0°F
(11.7°C)
2.7°F
(1.5°C)
69th Coolest Coolest since: 1990 1950
5th Warmest Warmest since: 1985 2012
Feb–May 1991
4-Month
51.6°F
(10.9°C)
48.6°F
(9.2°C)
3.0°F
(1.7°C)
71st Coolest Coolest since: 1990 1978
3rd Warmest Warmest since: 1985 2012
Ties: 1985
Jan–May 1991
5-Month
48.0°F
(8.9°C)
45.4°F
(7.4°C)
2.6°F
(1.5°C)
67th Coolest Coolest since: 1990 1978
7th Warmest Warmest since: 1990 2012
Ties: 1990
Dec 1990–May 1991
6-Month
46.8°F
(8.2°C)
44.0°F
(6.7°C)
2.8°F
(1.5°C)
67th Coolest Coolest since: 1990 1978
6th Warmest Warmest to Date 2012
Nov 1990–May 1991
7-Month
46.9°F
(8.3°C)
44.3°F
(6.8°C)
2.6°F
(1.5°C)
66th Coolest Coolest since: 1990 1978
6th Warmest Warmest to Date 2012
Oct 1990–May 1991
8-Month
48.5°F
(9.2°C)
45.8°F
(7.7°C)
2.7°F
(1.5°C)
68th Coolest Coolest since: 1990 1978
4th Warmest Warmest to Date 2012
Ties: 2016
Sep 1990–May 1991
9-Month
50.4°F
(10.2°C)
48.2°F
(9.0°C)
2.2°F
(1.2°C)
64th Coolest Coolest since: 1990 1978
8th Warmest Warmest to Date 2012
Aug 1990–May 1991
10-Month
52.8°F
(11.6°C)
50.9°F
(10.5°C)
1.9°F
(1.1°C)
64th Coolest Coolest since: 1990 1963, 1978
8th Warmest Warmest to Date 2012
Jul 1990–May 1991
11-Month
55.0°F
(12.8°C)
53.3°F
(11.8°C)
1.7°F
(1.0°C)
64th Coolest Coolest since: 1990 1963
8th Warmest Warmest to Date 2012
Jun 1990–May 1991
12-Month
56.4°F
(13.6°C)
54.9°F
(12.7°C)
1.5°F
(0.9°C)
64th Coolest Coolest since: 1990 1963
8th Warmest Warmest to Date 2012
Ties: 2019, 2021
Dec 1989–May 1991
18-Month
52.3°F
(11.3°C)
51.2°F
(10.7°C)
1.1°F
(0.6°C)
58th Coolest Coolest since: 1990 1979
11th Warmest Warmest to Date 2017
Ties: 2006, 2016, 2019
Jun 1989–May 1991
24-Month
55.6°F
(13.1°C)
54.9°F
(12.7°C)
0.7°F
(0.4°C)
56th Coolest Coolest since: 1990 1978
12th Warmest Warmest to Date 2017
Ties: 1992, 2006, 2009, 2016
Jun 1988–May 1991
36-Month
55.0°F
(12.8°C)
54.9°F
(12.7°C)
0.1°F
(0.1°C)
43rd Coolest Coolest since: 1990 1979
21st Warmest Warmest since: 1976 2022
Ties: 1955, 1993, 2016
Jun 1987–May 1991
48-Month
54.7°F
(12.6°C)
54.8°F
(12.7°C)
-0.1°F
(-0.1°C)
33rd Coolest Coolest since: 1990 1966
27th Warmest Warmest since: 1977 2019, 2020, 2022
Ties: 1975, 1977
Jun 1986–May 1991
60-Month
54.5°F
(12.5°C)
54.8°F
(12.7°C)
-0.3°F
(-0.2°C)
27th Coolest Coolest since: 1985 1967
30th Warmest Warmest since: 1977 2020
Ties: 1977, 1996

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: City Time Series, Average Temperature, published September 2022, retrieved on October 5, 2022 from https://www.ncdc.noaa.gov/cag/