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 October 2021. For more information, please see Climatological Rankings.


Delaware

Average Temperature Rankings, September 1900

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
September 1900
1-Month
71.4°F
(21.9°C)
67.4°F
(19.7°C)
4.0°F
(2.2°C)
118th Coolest Coolest since: 1899 1917
10th Warmest Warmest to Date 2018
Ties: 2010
Aug–Sep 1900
2-Month
74.9°F
(23.8°C)
70.6°F
(21.4°C)
4.3°F
(2.4°C)
125th Coolest Coolest since: 1899 1927, 1963
3rd Warmest Warmest to Date 2018
Ties: 2005
Jul–Sep 1900
3-Month
75.9°F
(24.4°C)
72.2°F
(22.3°C)
3.7°F
(2.1°C)
124th Coolest Coolest since: 1899 1909
4th Warmest Warmest to Date 2016
Ties: 2005, 2019
Jun–Sep 1900
4-Month
74.8°F
(23.8°C)
71.8°F
(22.1°C)
3.0°F
(1.7°C)
119th Coolest Coolest since: 1899 1927
9th Warmest Warmest to Date 2010
Ties: 2002, 2012
May–Sep 1900
5-Month
72.4°F
(22.4°C)
69.9°F
(21.1°C)
2.5°F
(1.3°C)
119th Coolest Coolest since: 1899 1924, 1927
9th Warmest Warmest to Date 2010
Ties: 2002, 2020
Apr–Sep 1900
6-Month
68.9°F
(20.5°C)
66.9°F
(19.4°C)
2.0°F
(1.1°C)
112th Coolest Coolest since: 1899 1907
16th Warmest Warmest to Date 2010
Ties: 2006
Mar–Sep 1900
7-Month
64.4°F
(18.0°C)
63.4°F
(17.4°C)
1.0°F
(0.6°C)
93rd Coolest Coolest since: 1899 1924
35th Warmest Warmest since: 1898 2010
Ties: 1898, 1925, 1930, 1936, 1949, 1953, 1994, 2000
Feb–Sep 1900
8-Month
60.5°F
(15.8°C)
59.8°F
(15.4°C)
0.7°F
(0.4°C)
79th Coolest Coolest since: 1899 1907
49th Warmest Warmest since: 1898 2012
Ties: 1933, 1943, 1994
Jan–Sep 1900
9-Month
57.5°F
(14.2°C)
56.8°F
(13.8°C)
0.7°F
(0.4°C)
77th Coolest Coolest since: 1899 1940
51st Warmest Warmest since: 1898 2012
Ties: 1944, 1985, 1997
Dec 1899–Sep 1900
10-Month
55.4°F
(13.0°C)
54.8°F
(12.7°C)
0.6°F
(0.3°C)
75th Coolest Coolest since: 1899 1904
52nd Warmest Warmest since: 1898 2012
Ties: 1906, 1919, 1975, 1988
Nov 1899–Sep 1900
11-Month
54.5°F
(12.5°C)
54.0°F
(12.2°C)
0.5°F
(0.3°C)
74th Coolest Coolest since: 1899 1904
53rd Warmest Warmest since: 1898 2012
Ties: 1938, 1959
Oct 1899–Sep 1900
12-Month
54.7°F
(12.6°C)
54.2°F
(12.3°C)
0.5°F
(0.3°C)
77th Coolest Coolest since: 1899 1904
50th Warmest Warmest since: 1898 2012
Ties: 1947, 1959, 1989, 1997, 2014
Apr 1899–Sep 1900
18-Month
58.7°F
(14.8°C)
58.4°F
(14.7°C)
0.3°F
(0.1°C)
68th Coolest Coolest since: 1899 1904, 1918
59th Warmest Warmest to Date 2012
Ties: 1919, 1931
Oct 1898–Sep 1900
24-Month
53.9°F
(12.2°C)
54.2°F
(12.3°C)
-0.3°F
(-0.1°C)
38th Coolest Coolest since: 1897 1905
88th Warmest Warmest since: 1899 2017
Ties: 1909, 1910, 1925, 1959, 1961
Oct 1897–Sep 1900
36-Month
54.3°F
(12.4°C)
54.2°F
(12.3°C)
0.1°F
(0.1°C)
58th Coolest Coolest since: 1899 1905, 1918
67th Warmest Warmest to Date 2018, 2021
Ties: 1915
Oct 1896–Sep 1900
48-Month
54.0°F
(12.2°C)
54.1°F
(12.3°C)
-0.1°F
(-0.1°C)
47th Coolest Coolest since: 1899 1905
77th Warmest Warmest to Date 2019
Ties: 1916, 1940, 1942, 1962
Oct 1895–Sep 1900
60-Month
54.0°F
(12.2°C)
54.2°F
(12.3°C)
-0.2°F
(-0.1°C)
44th Coolest Coolest to Date 1908
79th Warmest Warmest to Date 2020
Ties: 1922, 1924, 1979

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2021, retrieved on December 5, 2021 from https://www.ncdc.noaa.gov/cag/