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 May 2021. 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
(1895-2021)
Warmest/Coolest
Since
Record
May 1991
1-Month
69.2°F
(20.7°C)
63.1°F
(17.3°C)
6.1°F
(3.4°C)
74th Coolest Coolest since: 1990 1967
1st Warmest Warmest to Date 1991
Apr–May 1991
2-Month
62.0°F
(16.7°C)
58.3°F
(14.6°C)
3.7°F
(2.1°C)
73rd Coolest Coolest since: 1990 1967
2nd Warmest Warmest since: 1985 2019
Ties: 1985
Mar–May 1991
3-Month
56.3°F
(13.5°C)
53.3°F
(11.8°C)
3.0°F
(1.7°C)
69th Coolest Coolest since: 1990 1984
4th Warmest Warmest since: 1985 2012
Feb–May 1991
4-Month
52.2°F
(11.2°C)
48.9°F
(9.4°C)
3.3°F
(1.8°C)
71st Coolest Coolest since: 1990 1978
2nd Warmest Warmest since: 1985 2012
Ties: 1985
Jan–May 1991
5-Month
48.6°F
(9.2°C)
45.6°F
(7.6°C)
3.0°F
(1.6°C)
69th Coolest Coolest since: 1989 1978
4th Warmest Warmest since: 1990 2012
Ties: 2017
Dec 1990–May 1991
6-Month
47.4°F
(8.6°C)
44.3°F
(6.8°C)
3.1°F
(1.8°C)
68th Coolest Coolest since: 1990 1978
4th Warmest Warmest to Date 2012
Nov 1990–May 1991
7-Month
47.5°F
(8.6°C)
44.6°F
(7.0°C)
2.9°F
(1.6°C)
68th Coolest Coolest since: 1990 1978
3rd Warmest Warmest to Date 2012
Oct 1990–May 1991
8-Month
49.1°F
(9.5°C)
46.1°F
(7.8°C)
3.0°F
(1.7°C)
68th Coolest Coolest since: 1990 1978
3rd Warmest Warmest to Date 2012
Sep 1990–May 1991
9-Month
51.1°F
(10.6°C)
48.5°F
(9.2°C)
2.6°F
(1.4°C)
67th Coolest Coolest since: 1990 1978
4th Warmest Warmest to Date 2012
Ties: 2002
Aug 1990–May 1991
10-Month
53.4°F
(11.9°C)
51.2°F
(10.7°C)
2.2°F
(1.2°C)
66th Coolest Coolest since: 1990 1978
5th Warmest Warmest to Date 2012
Jul 1990–May 1991
11-Month
55.6°F
(13.1°C)
53.6°F
(12.0°C)
2.0°F
(1.1°C)
67th Coolest Coolest since: 1990 1978
4th Warmest Warmest to Date 2012
Ties: 2002, 2020
Jun 1990–May 1991
12-Month
57.0°F
(13.9°C)
55.1°F
(12.8°C)
1.9°F
(1.1°C)
65th Coolest Coolest since: 1990 1978
6th Warmest Warmest to Date 2012
Ties: 2006
Dec 1989–May 1991
18-Month
52.9°F
(11.6°C)
51.5°F
(10.8°C)
1.4°F
(0.8°C)
62nd Coolest Coolest since: 1990 1979
6th Warmest Warmest since: 1954 2017
Ties: 1954
Jun 1989–May 1991
24-Month
56.2°F
(13.4°C)
55.1°F
(12.8°C)
1.1°F
(0.6°C)
58th Coolest Coolest since: 1990 1978
9th Warmest Warmest since: 1954 2017
Ties: 1954, 1999
Jun 1988–May 1991
36-Month
55.6°F
(13.1°C)
55.1°F
(12.8°C)
0.5°F
(0.3°C)
50th Coolest Coolest since: 1990 1979
13th Warmest Warmest since: 1976 2018
Ties: 1974, 1993, 1999, 2007, 2009
Jun 1987–May 1991
48-Month
55.3°F
(12.9°C)
55.1°F
(12.8°C)
0.2°F
(0.1°C)
37th Coolest Coolest since: 1990 1980
22nd Warmest Warmest since: 1976 2019, 2020
Ties: 1975, 2003
Jun 1986–May 1991
60-Month
55.1°F
(12.8°C)
55.0°F
(12.8°C)
0.1°F
(0.0°C)
30th Coolest Coolest since: 1985 1981
26th Warmest Warmest since: 1976 2020
Ties: 1998

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: City Time Series, published June 2021, retrieved on June 18, 2021 from https://www.ncdc.noaa.gov/cag/