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 1947

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
September 1947
1-Month
68.1°F
(20.1°C)
67.4°F
(19.7°C)
0.7°F
(0.4°C)
73rd Coolest Coolest since: 1946 1917
53rd Warmest Warmest since: 1945 2018
Ties: 1939, 1996
Aug–Sep 1947
2-Month
71.9°F
(22.2°C)
70.5°F
(21.4°C)
1.4°F
(0.8°C)
93rd Coolest Coolest since: 1946 1927, 1963
33rd Warmest Warmest since: 1939 2018
Ties: 1921, 1987, 1993, 2017
Jul–Sep 1947
3-Month
72.6°F
(22.6°C)
72.2°F
(22.3°C)
0.4°F
(0.3°C)
76th Coolest Coolest since: 1946 1909
50th Warmest Warmest since: 1944 2016
Ties: 1895, 1942, 1954, 1957, 1989
Jun–Sep 1947
4-Month
71.7°F
(22.1°C)
71.8°F
(22.1°C)
-0.1°F
(0.0°C)
51st Coolest Coolest since: 1946 1927
75th Warmest Warmest since: 1945 2010
Ties: 1975
May–Sep 1947
5-Month
69.9°F
(21.1°C)
69.9°F
(21.1°C)
0.0°F
(0.0°C)
52nd Coolest Coolest since: 1946 1924, 1927
74th Warmest Warmest since: 1945 2010
Ties: 1899, 1914, 1922, 1945, 1954, 1964
Apr–Sep 1947
6-Month
67.1°F
(19.5°C)
66.9°F
(19.4°C)
0.2°F
(0.1°C)
60th Coolest Coolest since: 1946 1907
66th Warmest Warmest since: 1945 2010
Ties: 1968
Mar–Sep 1947
7-Month
62.8°F
(17.1°C)
63.4°F
(17.4°C)
-0.6°F
(-0.3°C)
29th Coolest Coolest since: 1940 1924
97th Warmest Warmest since: 1946 2010
Ties: 1935, 1978
Feb–Sep 1947
8-Month
58.7°F
(14.8°C)
59.9°F
(15.5°C)
-1.2°F
(-0.7°C)
23rd Coolest Coolest since: 1940 1907
103rd Warmest Warmest since: 1946 2012
Ties: 1902, 1963
Jan–Sep 1947
9-Month
56.6°F
(13.7°C)
56.9°F
(13.8°C)
-0.3°F
(-0.1°C)
45th Coolest Coolest since: 1941 1940
81st Warmest Warmest since: 1946 2012
Ties: 1903, 1908, 1915, 1960, 1981
Dec 1946–Sep 1947
10-Month
54.8°F
(12.7°C)
54.8°F
(12.7°C)
0.0°F
(0.0°C)
51st Coolest Coolest since: 1946 1904
74th Warmest Warmest since: 1945 2012
Ties: 1896, 1908, 1909, 1972, 1994
Nov 1946–Sep 1947
11-Month
54.3°F
(12.4°C)
54.0°F
(12.2°C)
0.3°F
(0.2°C)
68th Coolest Coolest since: 1946 1904
57th Warmest Warmest since: 1945 2012
Ties: 1906, 1929, 1943, 2014
Oct 1946–Sep 1947
12-Month
54.7°F
(12.6°C)
54.2°F
(12.3°C)
0.5°F
(0.3°C)
77th Coolest Coolest since: 1946 1904
48th Warmest Warmest since: 1942 2012
Ties: 1900, 1959, 1989, 1997, 2014
Apr 1946–Sep 1947
18-Month
58.4°F
(14.7°C)
58.5°F
(14.7°C)
-0.1°F
(0.0°C)
49th Coolest Coolest since: 1941 1904, 1918
76th Warmest Warmest since: 1946 2012
Ties: 1909, 1969, 1993
Oct 1945–Sep 1947
24-Month
54.4°F
(12.4°C)
54.2°F
(12.3°C)
0.2°F
(0.1°C)
62nd Coolest Coolest since: 1946 1905
62nd Warmest Warmest since: 1944 2017
Ties: 1901, 1944, 1957, 1958
Oct 1944–Sep 1947
36-Month
54.4°F
(12.4°C)
54.2°F
(12.3°C)
0.2°F
(0.1°C)
60th Coolest Coolest since: 1946 1905, 1918
63rd Warmest Warmest since: 1945 2018
Ties: 1945
Oct 1943–Sep 1947
48-Month
54.3°F
(12.4°C)
54.1°F
(12.3°C)
0.2°F
(0.1°C)
59th Coolest Coolest since: 1946 1905
63rd Warmest Warmest since: 1946 2019
Ties: 1923, 1946, 1958
Oct 1942–Sep 1947
60-Month
54.4°F
(12.4°C)
54.2°F
(12.3°C)
0.2°F
(0.1°C)
67th Coolest Coolest since: 1944 1908
54th Warmest Warmest since: 1946 2019
Ties: 1923, 1935, 1974

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/