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 1939

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
September 1939
1-Month
68.1°F
(20.1°C)
67.4°F
(19.7°C)
0.7°F
(0.4°C)
73rd Coolest Coolest since: 1938 1917
53rd Warmest Warmest since: 1936 2018
Ties: 1947, 1996
Aug–Sep 1939
2-Month
72.0°F
(22.2°C)
70.5°F
(21.4°C)
1.5°F
(0.8°C)
96th Coolest Coolest since: 1938 1927, 1963
30th Warmest Warmest since: 1936 2018
Ties: 1936, 2009
Jul–Sep 1939
3-Month
72.8°F
(22.7°C)
72.2°F
(22.3°C)
0.6°F
(0.4°C)
79th Coolest Coolest since: 1938 1909
47th Warmest Warmest since: 1936 2016
Jun–Sep 1939
4-Month
72.8°F
(22.7°C)
71.9°F
(22.2°C)
0.9°F
(0.5°C)
83rd Coolest Coolest since: 1938 1927
43rd Warmest Warmest since: 1934 2010
Ties: 1970, 1977
May–Sep 1939
5-Month
71.0°F
(21.7°C)
69.9°F
(21.1°C)
1.1°F
(0.6°C)
90th Coolest Coolest since: 1938 1924, 1927
36th Warmest Warmest since: 1934 2010
Ties: 1898, 1986, 1988, 2014
Apr–Sep 1939
6-Month
67.6°F
(19.8°C)
66.9°F
(19.4°C)
0.7°F
(0.4°C)
79th Coolest Coolest since: 1938 1907
47th Warmest Warmest since: 1934 2010
Ties: 1925, 1931, 1954, 1960, 1970, 1988
Mar–Sep 1939
7-Month
64.2°F
(17.9°C)
63.5°F
(17.5°C)
0.7°F
(0.4°C)
81st Coolest Coolest since: 1938 1924
45th Warmest Warmest since: 1936 2010
Ties: 1952, 1988
Feb–Sep 1939
8-Month
61.1°F
(16.2°C)
59.8°F
(15.4°C)
1.3°F
(0.8°C)
96th Coolest Coolest since: 1938 1907
30th Warmest Warmest since: 1930 2012
Ties: 1930, 1954
Jan–Sep 1939
9-Month
58.2°F
(14.6°C)
56.9°F
(13.8°C)
1.3°F
(0.8°C)
100th Coolest Coolest since: 1938 1940
26th Warmest Warmest since: 1933 2012
Ties: 1925, 1930, 2000, 2005
Dec 1938–Sep 1939
10-Month
56.0°F
(13.3°C)
54.8°F
(12.7°C)
1.2°F
(0.6°C)
91st Coolest Coolest since: 1938 1904
34th Warmest Warmest since: 1933 2012
Ties: 1925, 1990
Nov 1938–Sep 1939
11-Month
55.3°F
(12.9°C)
54.0°F
(12.2°C)
1.3°F
(0.7°C)
97th Coolest Coolest since: 1938 1904
28th Warmest Warmest since: 1932 2012
Ties: 1973
Oct 1938–Sep 1939
12-Month
55.3°F
(12.9°C)
54.1°F
(12.3°C)
1.2°F
(0.6°C)
92nd Coolest Coolest since: 1938 1904
33rd Warmest Warmest since: 1933 2012
Ties: 1933, 1990, 2009, 2015
Apr 1938–Sep 1939
18-Month
59.2°F
(15.1°C)
58.4°F
(14.7°C)
0.8°F
(0.4°C)
86th Coolest Coolest since: 1938 1904, 1918
39th Warmest Warmest since: 1932 2012
Ties: 1913, 1943, 1952, 1988
Oct 1937–Sep 1939
24-Month
54.9°F
(12.7°C)
54.2°F
(12.3°C)
0.7°F
(0.4°C)
85th Coolest Coolest since: 1938 1905
39th Warmest Warmest since: 1933 2017
Ties: 1949, 1952, 1996
Oct 1936–Sep 1939
36-Month
54.8°F
(12.7°C)
54.2°F
(12.3°C)
0.6°F
(0.4°C)
80th Coolest Coolest since: 1938 1905, 1918
43rd Warmest Warmest since: 1934 2018
Ties: 1949, 1950, 1952, 1989, 1990
Oct 1935–Sep 1939
48-Month
54.4°F
(12.4°C)
54.1°F
(12.3°C)
0.3°F
(0.1°C)
65th Coolest Coolest since: 1938 1905
57th Warmest Warmest since: 1935 2019
Ties: 1924, 1931
Oct 1934–Sep 1939
60-Month
54.2°F
(12.3°C)
54.1°F
(12.3°C)
0.1°F
(0.0°C)
56th Coolest Coolest since: 1938 1908
65th Warmest Warmest since: 1936 2019
Ties: 1936, 1948, 1960

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2019, retrieved on October 15, 2019 from https://www.ncdc.noaa.gov/cag/