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 1999

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  • Record Warmest
Period Value 1981-2010
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
May 1999
1-Month
63.4°F
(17.4°C)
62.8°F
(17.1°C)
0.6°F
(0.3°C)
45th Coolest Coolest since: 1997 1967
31st Warmest Warmest since: 1998 2004
Ties: 2006, 2009
Apr–May 1999
2-Month
58.3°F
(14.6°C)
58.1°F
(14.5°C)
0.2°F
(0.1°C)
44th Coolest Coolest since: 1997 1967
32nd Warmest Warmest since: 1998 2019
Ties: 2000
Mar–May 1999
3-Month
52.9°F
(11.6°C)
53.0°F
(11.7°C)
-0.1°F
(-0.1°C)
40th Coolest Coolest since: 1997 1950
34th Warmest Warmest since: 1998 2012
Ties: 1994
Feb–May 1999
4-Month
49.0°F
(9.4°C)
48.6°F
(9.2°C)
0.4°F
(0.2°C)
47th Coolest Coolest since: 1997 1978
27th Warmest Warmest since: 1998 2012
Ties: 1949
Jan–May 1999
5-Month
46.3°F
(7.9°C)
45.4°F
(7.4°C)
0.9°F
(0.5°C)
55th Coolest Coolest since: 1997 1978
19th Warmest Warmest since: 1998 2012
Ties: 1976
Dec 1998–May 1999
6-Month
45.5°F
(7.5°C)
44.0°F
(6.7°C)
1.5°F
(0.8°C)
60th Coolest Coolest since: 1997 1978
13th Warmest Warmest since: 1998 2012
Nov 1998–May 1999
7-Month
45.7°F
(7.6°C)
44.3°F
(6.8°C)
1.4°F
(0.8°C)
60th Coolest Coolest since: 1997 1978
12th Warmest Warmest since: 1998 2012
Oct 1998–May 1999
8-Month
47.2°F
(8.4°C)
45.8°F
(7.7°C)
1.4°F
(0.7°C)
58th Coolest Coolest since: 1997 1978
14th Warmest Warmest since: 1998 2012
Sep 1998–May 1999
9-Month
49.9°F
(9.9°C)
48.2°F
(9.0°C)
1.7°F
(0.9°C)
62nd Coolest Coolest since: 1997 1978
10th Warmest Warmest since: 1998 2012
Ties: 2008
Aug 1998–May 1999
10-Month
52.5°F
(11.4°C)
50.9°F
(10.5°C)
1.6°F
(0.9°C)
62nd Coolest Coolest since: 1998 1963, 1978
10th Warmest Warmest since: 1998 2012
Ties: 1998, 2008
Jul 1998–May 1999
11-Month
54.6°F
(12.6°C)
53.3°F
(11.8°C)
1.3°F
(0.8°C)
59th Coolest Coolest since: 1998 1963
13th Warmest Warmest since: 1998 2012
Ties: 1998
Jun 1998–May 1999
12-Month
56.0°F
(13.3°C)
54.9°F
(12.7°C)
1.1°F
(0.6°C)
59th Coolest Coolest since: 1998 1963
13th Warmest Warmest since: 1991 2012
Dec 1997–May 1999
18-Month
53.2°F
(11.8°C)
51.3°F
(10.7°C)
1.9°F
(1.1°C)
66th Coolest Coolest since: 1998 1979
3rd Warmest Warmest to Date 2017
Jun 1997–May 1999
24-Month
55.9°F
(13.3°C)
54.8°F
(12.7°C)
1.1°F
(0.6°C)
57th Coolest Coolest since: 1998 1978
11th Warmest Warmest to Date 2017
Jun 1996–May 1999
36-Month
55.4°F
(13.0°C)
54.9°F
(12.7°C)
0.5°F
(0.3°C)
49th Coolest Coolest since: 1998 1979
15th Warmest Warmest to Date 2022
Jun 1995–May 1999
48-Month
55.1°F
(12.8°C)
54.9°F
(12.7°C)
0.2°F
(0.1°C)
44th Coolest Coolest since: 1998 1966
16th Warmest Warmest to Date 2019, 2020, 2022
Ties: 2003, 2006
Jun 1994–May 1999
60-Month
55.2°F
(12.9°C)
54.8°F
(12.7°C)
0.4°F
(0.2°C)
42nd Coolest Coolest since: 1998 1967
15th Warmest Warmest to Date 2020
Ties: 2001, 2007

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: City Time Series, Average Temperature, published September 2022, retrieved on September 27, 2022 from https://www.ncdc.noaa.gov/cag/