Climate at a Glance

Statewide 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 September 2019. For more information, please see Climatological Rankings.


Delaware

Average Temperature Rankings, September 1998

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
September 1998
1-Month
71.2°F
(21.8°C)
67.4°F
(19.7°C)
3.8°F
(2.1°C)
114th Coolest Coolest since: 1997 1917
12th Warmest Warmest since: 1961 2018
Aug–Sep 1998
2-Month
73.2°F
(22.9°C)
70.6°F
(21.4°C)
2.6°F
(1.5°C)
115th Coolest Coolest since: 1997 1927, 1963
11th Warmest Warmest since: 1980 2018
Ties: 1906
Jul–Sep 1998
3-Month
74.1°F
(23.4°C)
72.2°F
(22.3°C)
1.9°F
(1.1°C)
105th Coolest Coolest since: 1997 1909
21st Warmest Warmest since: 1995 2016
Ties: 1987, 2017
Jun–Sep 1998
4-Month
73.4°F
(23.0°C)
71.8°F
(22.1°C)
1.6°F
(0.9°C)
103rd Coolest Coolest since: 1997 1927
23rd Warmest Warmest since: 1995 2010
Ties: 1995, 2006
May–Sep 1998
5-Month
71.7°F
(22.1°C)
69.9°F
(21.1°C)
1.8°F
(1.0°C)
109th Coolest Coolest since: 1997 1924, 1927
17th Warmest Warmest since: 1991 2010
Ties: 1999, 2017
Apr–Sep 1998
6-Month
69.0°F
(20.6°C)
67.0°F
(19.4°C)
2.0°F
(1.2°C)
113th Coolest Coolest since: 1997 1907
13th Warmest Warmest since: 1991 2010
Mar–Sep 1998
7-Month
65.6°F
(18.7°C)
63.4°F
(17.4°C)
2.2°F
(1.3°C)
113th Coolest Coolest since: 1997 1924
13th Warmest Warmest since: 1991 2010
Ties: 1977
Feb–Sep 1998
8-Month
62.6°F
(17.0°C)
59.8°F
(15.4°C)
2.8°F
(1.6°C)
115th Coolest Coolest since: 1997 1907
11th Warmest Warmest since: 1991 2012
Jan–Sep 1998
9-Month
60.3°F
(15.7°C)
56.9°F
(13.8°C)
3.4°F
(1.9°C)
122nd Coolest Coolest since: 1997 1940
4th Warmest Warmest to Date 2012
Ties: 2010
Dec 1997–Sep 1998
10-Month
58.1°F
(14.5°C)
54.8°F
(12.7°C)
3.3°F
(1.8°C)
119th Coolest Coolest since: 1997 1904
6th Warmest Warmest since: 1991 2012
Ties: 1991
Nov 1997–Sep 1998
11-Month
56.9°F
(13.8°C)
54.0°F
(12.2°C)
2.9°F
(1.6°C)
117th Coolest Coolest since: 1997 1904
8th Warmest Warmest since: 1991 2012
Oct 1997–Sep 1998
12-Month
56.9°F
(13.8°C)
54.2°F
(12.3°C)
2.7°F
(1.5°C)
117th Coolest Coolest since: 1997 1904
8th Warmest Warmest since: 1991 2012
Ties: 2008
Apr 1997–Sep 1998
18-Month
60.0°F
(15.6°C)
58.4°F
(14.7°C)
1.6°F
(0.9°C)
107th Coolest Coolest since: 1997 1904, 1918
18th Warmest Warmest since: 1995 2012
Ties: 1932
Oct 1996–Sep 1998
24-Month
55.8°F
(13.2°C)
54.2°F
(12.3°C)
1.6°F
(0.9°C)
105th Coolest Coolest since: 1997 1905
19th Warmest Warmest since: 1992 2017
Ties: 1933, 2005
Oct 1995–Sep 1998
36-Month
55.1°F
(12.8°C)
54.2°F
(12.3°C)
0.9°F
(0.5°C)
94th Coolest Coolest since: 1997 1905, 1918
29th Warmest Warmest since: 1995 2018
Ties: 1932, 1951, 1953, 1976, 1995
Oct 1994–Sep 1998
48-Month
55.4°F
(13.0°C)
54.2°F
(12.3°C)
1.2°F
(0.7°C)
98th Coolest Coolest since: 1997 1905
24th Warmest Warmest since: 1993 2019
Ties: 1999
Oct 1993–Sep 1998
60-Month
55.1°F
(12.8°C)
54.1°F
(12.3°C)
1.0°F
(0.5°C)
92nd Coolest Coolest since: 1997 1908
29th Warmest Warmest since: 1995 2019
Ties: 1987, 1989

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2019, retrieved on October 17, 2019 from https://www.ncdc.noaa.gov/cag/