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 1901

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
September 1901
1-Month
67.4°F
(19.7°C)
67.4°F
(19.7°C)
0.0°F
(0.0°C)
58th Coolest Coolest since: 1899 1917
68th Warmest Warmest since: 1900 2018
Ties: 1986
Aug–Sep 1901
2-Month
71.6°F
(22.0°C)
70.6°F
(21.4°C)
1.0°F
(0.6°C)
84th Coolest Coolest since: 1899 1927, 1963
42nd Warmest Warmest since: 1900 2018
Ties: 1960, 1988, 2001
Jul–Sep 1901
3-Month
74.0°F
(23.3°C)
72.2°F
(22.3°C)
1.8°F
(1.0°C)
102nd Coolest Coolest since: 1899 1909
24th Warmest Warmest since: 1900 2016
Ties: 1959, 1961, 2003
Jun–Sep 1901
4-Month
73.3°F
(22.9°C)
71.9°F
(22.2°C)
1.4°F
(0.7°C)
100th Coolest Coolest since: 1899 1927
26th Warmest Warmest since: 1900 2010
Ties: 1921, 1925
May–Sep 1901
5-Month
70.7°F
(21.5°C)
69.9°F
(21.1°C)
0.8°F
(0.4°C)
80th Coolest Coolest since: 1899 1924, 1927
46th Warmest Warmest since: 1900 2010
Ties: 1921, 1936, 1952, 1983, 1989, 2009
Apr–Sep 1901
6-Month
67.0°F
(19.4°C)
66.9°F
(19.4°C)
0.1°F
(0.0°C)
54th Coolest Coolest since: 1899 1907
72nd Warmest Warmest since: 1900 2010
Ties: 1895, 1922, 1938, 1976, 2000
Mar–Sep 1901
7-Month
63.6°F
(17.6°C)
63.5°F
(17.5°C)
0.1°F
(0.1°C)
58th Coolest Coolest since: 1899 1924
68th Warmest Warmest since: 1900 2010
Ties: 1931, 1934, 1948, 1961
Feb–Sep 1901
8-Month
59.0°F
(15.0°C)
59.8°F
(15.4°C)
-0.8°F
(-0.4°C)
28th Coolest Coolest since: 1899 1907
98th Warmest Warmest since: 1900 2012
Ties: 1935, 1992
Jan–Sep 1901
9-Month
56.1°F
(13.4°C)
56.8°F
(13.8°C)
-0.7°F
(-0.4°C)
31st Coolest Coolest since: 1899 1940
95th Warmest Warmest since: 1900 2012
Ties: 1970, 1972
Dec 1900–Sep 1901
10-Month
54.0°F
(12.2°C)
54.8°F
(12.7°C)
-0.8°F
(-0.5°C)
28th Coolest Coolest since: 1899 1904
97th Warmest Warmest since: 1900 2012
Ties: 1914, 1934, 1964, 1971, 1979
Nov 1900–Sep 1901
11-Month
53.5°F
(11.9°C)
54.0°F
(12.2°C)
-0.5°F
(-0.3°C)
40th Coolest Coolest since: 1899 1904
85th Warmest Warmest since: 1900 2012
Ties: 1964, 1977
Oct 1900–Sep 1901
12-Month
54.1°F
(12.3°C)
54.2°F
(12.3°C)
-0.1°F
(0.0°C)
50th Coolest Coolest since: 1899 1904
75th Warmest Warmest since: 1900 2012
Ties: 1922, 1946, 2003
Apr 1900–Sep 1901
18-Month
59.0°F
(15.0°C)
58.4°F
(14.7°C)
0.6°F
(0.3°C)
80th Coolest Coolest since: 1900 1904, 1918
45th Warmest Warmest to Date 2012
Ties: 1933, 1950, 1983, 1989
Oct 1899–Sep 1901
24-Month
54.4°F
(12.4°C)
54.2°F
(12.3°C)
0.2°F
(0.1°C)
62nd Coolest Coolest since: 1900 1905
62nd Warmest Warmest to Date 2017
Ties: 1944, 1947, 1957, 1958
Oct 1898–Sep 1901
36-Month
54.0°F
(12.2°C)
54.2°F
(12.3°C)
-0.2°F
(-0.1°C)
47th Coolest Coolest since: 1899 1905, 1918
76th Warmest Warmest since: 1900 2018
Ties: 1914, 1958, 1984
Oct 1897–Sep 1901
48-Month
54.2°F
(12.3°C)
54.1°F
(12.3°C)
0.1°F
(0.0°C)
55th Coolest Coolest since: 1900 1905
67th Warmest Warmest to Date 2019
Ties: 1948, 1973, 1983
Oct 1896–Sep 1901
60-Month
54.1°F
(12.3°C)
54.2°F
(12.3°C)
-0.1°F
(0.0°C)
48th Coolest Coolest since: 1900 1908
73rd Warmest Warmest to Date 2019
Ties: 1931, 1942, 1943, 1973, 1980, 1983, 1984

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2019, retrieved on October 16, 2019 from https://www.ncdc.noaa.gov/cag/