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 1898

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
September 1898
1-Month
69.7°F
(20.9°C)
67.4°F
(19.7°C)
2.3°F
(1.2°C)
100th Coolest Coolest since: 1897 1917
26th Warmest Warmest since: 1895 2018
Ties: 1941
Aug–Sep 1898
2-Month
72.9°F
(22.7°C)
70.5°F
(21.4°C)
2.4°F
(1.3°C)
107th Coolest Coolest since: 1897 1927, 1963
19th Warmest Warmest since: 1895 2018
Ties: 1930, 1970, 2003
Jul–Sep 1898
3-Month
74.3°F
(23.5°C)
72.2°F
(22.3°C)
2.1°F
(1.2°C)
111th Coolest Coolest since: 1897 1909
15th Warmest Warmest to Date 2016
Jun–Sep 1898
4-Month
73.5°F
(23.1°C)
71.8°F
(22.1°C)
1.7°F
(1.0°C)
107th Coolest Coolest since: 1897 1927
19th Warmest Warmest to Date 2010
Ties: 1931, 1980, 1993
May–Sep 1898
5-Month
71.0°F
(21.7°C)
69.9°F
(21.1°C)
1.1°F
(0.6°C)
90th Coolest Coolest since: 1897 1924, 1927
36th Warmest Warmest to Date 2010
Ties: 1939, 1986, 1988, 2014
Apr–Sep 1898
6-Month
67.3°F
(19.6°C)
66.9°F
(19.4°C)
0.4°F
(0.2°C)
66th Coolest Coolest since: 1897 1907
60th Warmest Warmest since: 1896 2010
Mar–Sep 1898
7-Month
64.4°F
(18.0°C)
63.5°F
(17.5°C)
0.9°F
(0.5°C)
93rd Coolest Coolest since: 1897 1924
33rd Warmest Warmest to Date 2010
Ties: 1900, 1925, 1930, 1936, 1949, 1953, 1994, 2000
Feb–Sep 1898
8-Month
60.7°F
(15.9°C)
59.8°F
(15.4°C)
0.9°F
(0.5°C)
85th Coolest Coolest since: 1897 1907
41st Warmest Warmest to Date 2012
Ties: 1942, 1986, 1988, 2007
Jan–Sep 1898
9-Month
57.9°F
(14.4°C)
56.9°F
(13.8°C)
1.0°F
(0.6°C)
91st Coolest Coolest since: 1897 1940
35th Warmest Warmest to Date 2012
Ties: 1932, 1976, 1989, 2009
Dec 1897–Sep 1898
10-Month
55.8°F
(13.2°C)
54.8°F
(12.7°C)
1.0°F
(0.5°C)
85th Coolest Coolest since: 1897 1904
40th Warmest Warmest to Date 2012
Ties: 1955, 1993
Nov 1897–Sep 1898
11-Month
54.9°F
(12.7°C)
54.0°F
(12.2°C)
0.9°F
(0.5°C)
84th Coolest Coolest since: 1897 1904
41st Warmest Warmest to Date 2012
Ties: 1925, 1942, 1974, 2015
Oct 1897–Sep 1898
12-Month
55.1°F
(12.8°C)
54.2°F
(12.3°C)
0.9°F
(0.5°C)
86th Coolest Coolest since: 1897 1904
39th Warmest Warmest to Date 2012
Ties: 1930, 1973, 1974, 1987
Apr 1897–Sep 1898
18-Month
58.6°F
(14.8°C)
58.4°F
(14.7°C)
0.2°F
(0.1°C)
59th Coolest Coolest since: 1897 1904, 1918
66th Warmest Warmest to Date 2012
Ties: 1944, 1959, 1973, 1975, 1981, 2001
Oct 1896–Sep 1898
24-Month
54.2°F
(12.3°C)
54.2°F
(12.3°C)
0.0°F
(0.0°C)
49th Coolest Coolest since: 1897 1905
75th Warmest Warmest to Date 2017
Ties: 1934, 1946, 1948, 1983, 1997
Oct 1895–Sep 1898
36-Month
54.1°F
(12.3°C)
54.2°F
(12.3°C)
-0.1°F
(0.0°C)
51st Coolest Coolest to Date 1905, 1918
72nd Warmest Warmest to Date 2018
Ties: 1938, 1948, 1960, 1981

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2019, retrieved on October 23, 2019 from https://www.ncdc.noaa.gov/cag/