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 1949

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
September 1949
1-Month
65.1°F
(18.4°C)
67.4°F
(19.7°C)
-2.3°F
(-1.3°C)
13th Coolest Coolest since: 1940 1917
113th Warmest Warmest since: 1948 2018
Aug–Sep 1949
2-Month
70.1°F
(21.2°C)
70.5°F
(21.4°C)
-0.4°F
(-0.2°C)
43rd Coolest Coolest since: 1948 1927, 1963
83rd Warmest Warmest since: 1947 2018
Ties: 1966, 1972, 1990
Jul–Sep 1949
3-Month
73.1°F
(22.8°C)
72.2°F
(22.3°C)
0.9°F
(0.5°C)
87th Coolest Coolest since: 1948 1909
39th Warmest Warmest since: 1936 2016
Ties: 1936, 1968, 2013
Jun–Sep 1949
4-Month
72.9°F
(22.7°C)
71.8°F
(22.1°C)
1.1°F
(0.6°C)
86th Coolest Coolest since: 1948 1927
40th Warmest Warmest since: 1943 2010
Ties: 1906, 1955
May–Sep 1949
5-Month
70.9°F
(21.6°C)
69.9°F
(21.1°C)
1.0°F
(0.5°C)
85th Coolest Coolest since: 1948 1924, 1927
41st Warmest Warmest since: 1944 2010
Ties: 1906, 1953, 1970, 1973
Apr–Sep 1949
6-Month
67.8°F
(19.9°C)
66.9°F
(19.4°C)
0.9°F
(0.5°C)
85th Coolest Coolest since: 1948 1907
41st Warmest Warmest since: 1944 2010
Ties: 1896, 1941, 1953, 2001
Mar–Sep 1949
7-Month
64.4°F
(18.0°C)
63.4°F
(17.4°C)
1.0°F
(0.6°C)
93rd Coolest Coolest since: 1948 1924
33rd Warmest Warmest since: 1945 2010
Ties: 1898, 1900, 1925, 1930, 1936, 1953, 1994, 2000
Feb–Sep 1949
8-Month
61.4°F
(16.3°C)
59.8°F
(15.4°C)
1.6°F
(0.9°C)
104th Coolest Coolest since: 1948 1907
22nd Warmest Warmest since: 1945 2012
Ties: 1976
Jan–Sep 1949
9-Month
59.2°F
(15.1°C)
56.9°F
(13.8°C)
2.3°F
(1.3°C)
111th Coolest Coolest since: 1948 1940
15th Warmest Warmest since: 1921 2012
Dec 1948–Sep 1949
10-Month
57.0°F
(13.9°C)
54.8°F
(12.7°C)
2.2°F
(1.2°C)
111th Coolest Coolest since: 1948 1904
14th Warmest Warmest since: 1921 2012
Ties: 2007
Nov 1948–Sep 1949
11-Month
56.4°F
(13.6°C)
54.0°F
(12.2°C)
2.4°F
(1.4°C)
115th Coolest Coolest since: 1948 1904
10th Warmest Warmest since: 1921 2012
Ties: 1921, 2007
Oct 1948–Sep 1949
12-Month
56.2°F
(13.4°C)
54.2°F
(12.3°C)
2.0°F
(1.1°C)
109th Coolest Coolest since: 1948 1904
16th Warmest Warmest since: 1932 2012
Ties: 1932
Apr 1948–Sep 1949
18-Month
59.7°F
(15.4°C)
58.5°F
(14.7°C)
1.2°F
(0.7°C)
105th Coolest Coolest since: 1948 1904, 1918
20th Warmest Warmest since: 1932 2012
Ties: 2004, 2009
Oct 1947–Sep 1949
24-Month
54.9°F
(12.7°C)
54.2°F
(12.3°C)
0.7°F
(0.4°C)
85th Coolest Coolest since: 1948 1905
39th Warmest Warmest since: 1943 2017
Ties: 1939, 1952, 1996
Oct 1946–Sep 1949
36-Month
54.8°F
(12.7°C)
54.1°F
(12.3°C)
0.7°F
(0.4°C)
80th Coolest Coolest since: 1948 1905, 1918
43rd Warmest Warmest since: 1939 2018
Ties: 1939, 1950, 1952, 1989, 1990
Oct 1945–Sep 1949
48-Month
54.7°F
(12.6°C)
54.2°F
(12.3°C)
0.5°F
(0.3°C)
79th Coolest Coolest since: 1948 1905
43rd Warmest Warmest since: 1945 2019
Ties: 1945, 1951, 1956, 1974, 1977, 1996, 1997
Oct 1944–Sep 1949
60-Month
54.6°F
(12.6°C)
54.1°F
(12.3°C)
0.5°F
(0.3°C)
75th Coolest Coolest since: 1948 1908
46th Warmest Warmest since: 1934 2019
Ties: 1950, 1975, 1986

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2019, retrieved on October 18, 2019 from https://www.ncdc.noaa.gov/cag/