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 1951

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
September 1951
1-Month
67.0°F
(19.4°C)
67.4°F
(19.7°C)
-0.4°F
(-0.3°C)
45th Coolest Coolest since: 1950 1917
81st Warmest Warmest since: 1947 2018
Ties: 1905, 1927, 1952, 1991
Aug–Sep 1951
2-Month
70.2°F
(21.2°C)
70.5°F
(21.4°C)
-0.3°F
(-0.2°C)
47th Coolest Coolest since: 1950 1927, 1963
79th Warmest Warmest since: 1947 2018
Ties: 1907, 1934
Jul–Sep 1951
3-Month
72.1°F
(22.3°C)
72.2°F
(22.3°C)
-0.1°F
(0.0°C)
48th Coolest Coolest since: 1950 1909
78th Warmest Warmest since: 1949 2016
Ties: 1896, 1910, 1915, 1958, 1965
Jun–Sep 1951
4-Month
71.6°F
(22.0°C)
71.8°F
(22.1°C)
-0.2°F
(-0.1°C)
45th Coolest Coolest since: 1950 1927
81st Warmest Warmest since: 1949 2010
Ties: 1922, 1923, 1937, 1981, 1984
May–Sep 1951
5-Month
69.7°F
(20.9°C)
69.9°F
(21.1°C)
-0.2°F
(-0.2°C)
47th Coolest Coolest since: 1950 1924, 1927
79th Warmest Warmest since: 1949 2010
Ties: 1960, 1996
Apr–Sep 1951
6-Month
66.8°F
(19.3°C)
67.0°F
(19.4°C)
-0.2°F
(-0.1°C)
46th Coolest Coolest since: 1950 1907
80th Warmest Warmest since: 1949 2010
Ties: 1899, 1908, 1913, 1915, 1961, 1965
Mar–Sep 1951
7-Month
63.3°F
(17.4°C)
63.5°F
(17.5°C)
-0.2°F
(-0.1°C)
44th Coolest Coolest since: 1950 1924
82nd Warmest Warmest since: 1949 2010
Ties: 1918, 1941, 1964
Feb–Sep 1951
8-Month
59.9°F
(15.5°C)
59.8°F
(15.4°C)
0.1°F
(0.1°C)
58th Coolest Coolest since: 1950 1907
68th Warmest Warmest since: 1949 2012
Ties: 1919, 1948
Jan–Sep 1951
9-Month
57.3°F
(14.1°C)
56.9°F
(13.8°C)
0.4°F
(0.3°C)
67th Coolest Coolest since: 1950 1940
59th Warmest Warmest since: 1949 2012
Ties: 1911, 1931, 1946
Dec 1950–Sep 1951
10-Month
54.9°F
(12.7°C)
54.8°F
(12.7°C)
0.1°F
(0.0°C)
57th Coolest Coolest since: 1950 1904
68th Warmest Warmest since: 1950 2012
Ties: 1931, 1950, 1960, 1977, 1992
Nov 1950–Sep 1951
11-Month
54.1°F
(12.3°C)
53.9°F
(12.2°C)
0.2°F
(0.1°C)
58th Coolest Coolest since: 1950 1904
67th Warmest Warmest since: 1949 2012
Ties: 1896, 1992, 1994, 2001
Oct 1950–Sep 1951
12-Month
54.5°F
(12.5°C)
54.2°F
(12.3°C)
0.3°F
(0.2°C)
64th Coolest Coolest since: 1948 1904
61st Warmest Warmest since: 1950 2012
Ties: 1960, 1975
Apr 1950–Sep 1951
18-Month
58.0°F
(14.4°C)
58.4°F
(14.7°C)
-0.4°F
(-0.3°C)
31st Coolest Coolest since: 1941 1904, 1918
94th Warmest Warmest since: 1950 2012
Ties: 1925, 1934, 1962, 1965
Oct 1949–Sep 1951
24-Month
54.5°F
(12.5°C)
54.2°F
(12.3°C)
0.3°F
(0.2°C)
67th Coolest Coolest since: 1948 1905
57th Warmest Warmest since: 1950 2017
Ties: 1931, 1938
Oct 1948–Sep 1951
36-Month
55.1°F
(12.8°C)
54.2°F
(12.3°C)
0.9°F
(0.5°C)
94th Coolest Coolest since: 1950 1905, 1918
29th Warmest Warmest since: 1933 2018
Ties: 1932, 1953, 1976, 1995, 1998
Oct 1947–Sep 1951
48-Month
54.7°F
(12.6°C)
54.1°F
(12.3°C)
0.6°F
(0.3°C)
79th Coolest Coolest since: 1949 1905
43rd Warmest Warmest since: 1950 2019
Ties: 1945, 1949, 1956, 1974, 1977, 1996, 1997
Oct 1946–Sep 1951
60-Month
54.7°F
(12.6°C)
54.1°F
(12.3°C)
0.6°F
(0.3°C)
79th Coolest Coolest since: 1950 1908
42nd Warmest Warmest since: 1934 2019
Ties: 1934, 1996, 1997

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2019, retrieved on October 17, 2019 from https://www.ncdc.noaa.gov/cag/