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 October 2019. For more information, please see Climatological Rankings.


Delaware

Average Temperature Rankings, September 1909

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
September 1909
1-Month
65.3°F
(18.5°C)
67.4°F
(19.7°C)
-2.1°F
(-1.2°C)
14th Coolest Coolest to Date 1917
112th Warmest Warmest since: 1908 2018
Ties: 1984
Aug–Sep 1909
2-Month
68.2°F
(20.1°C)
70.5°F
(21.4°C)
-2.3°F
(-1.3°C)
5th Coolest Coolest to Date 1927, 1963
121st Warmest Warmest since: 1908 2018
Ties: 1924, 1967
Jul–Sep 1909
3-Month
69.7°F
(20.9°C)
72.2°F
(22.3°C)
-2.5°F
(-1.4°C)
1st Coolest Coolest to Date 1909
125th Warmest Warmest since: 1908 2016
Jun–Sep 1909
4-Month
70.0°F
(21.1°C)
71.8°F
(22.1°C)
-1.8°F
(-1.0°C)
5th Coolest Coolest since: 1907 1927
121st Warmest Warmest since: 1908 2010
Ties: 1918, 1946
May–Sep 1909
5-Month
68.4°F
(20.2°C)
69.9°F
(21.1°C)
-1.5°F
(-0.9°C)
10th Coolest Coolest since: 1907 1924, 1927
116th Warmest Warmest since: 1908 2010
Ties: 1963
Apr–Sep 1909
6-Month
65.6°F
(18.7°C)
66.9°F
(19.4°C)
-1.3°F
(-0.7°C)
12th Coolest Coolest since: 1907 1907
114th Warmest Warmest since: 1908 2010
Ties: 1904, 1928, 1946, 1972
Mar–Sep 1909
7-Month
62.0°F
(16.7°C)
63.5°F
(17.5°C)
-1.5°F
(-0.8°C)
11th Coolest Coolest since: 1907 1924
115th Warmest Warmest since: 1908 2010
Feb–Sep 1909
8-Month
59.4°F
(15.2°C)
59.8°F
(15.4°C)
-0.4°F
(-0.2°C)
39th Coolest Coolest since: 1907 1907
87th Warmest Warmest since: 1908 2012
Ties: 1965, 1971
Jan–Sep 1909
9-Month
56.8°F
(13.8°C)
56.8°F
(13.8°C)
0.0°F
(0.0°C)
55th Coolest Coolest since: 1908 1940
71st Warmest Warmest since: 1906 2012
Ties: 2014
Dec 1908–Sep 1909
10-Month
54.8°F
(12.7°C)
54.9°F
(12.7°C)
-0.1°F
(0.0°C)
51st Coolest Coolest since: 1908 1904
74th Warmest Warmest since: 1908 2012
Ties: 1896, 1908, 1947, 1972, 1994
Nov 1908–Sep 1909
11-Month
53.8°F
(12.1°C)
54.0°F
(12.2°C)
-0.2°F
(-0.1°C)
46th Coolest Coolest since: 1908 1904
79th Warmest Warmest since: 1908 2012
Ties: 1908, 1941, 2003
Oct 1908–Sep 1909
12-Month
54.2°F
(12.3°C)
54.2°F
(12.3°C)
0.0°F
(0.0°C)
54th Coolest Coolest since: 1908 1904
71st Warmest Warmest since: 1906 2012
Ties: 1944, 1994
Apr 1908–Sep 1909
18-Month
58.4°F
(14.7°C)
58.5°F
(14.7°C)
-0.1°F
(0.0°C)
49th Coolest Coolest since: 1908 1904, 1918
76th Warmest Warmest since: 1906 2012
Ties: 1947, 1969, 1993
Oct 1907–Sep 1909
24-Month
53.9°F
(12.2°C)
54.2°F
(12.3°C)
-0.3°F
(-0.1°C)
38th Coolest Coolest since: 1908 1905
86th Warmest Warmest since: 1901 2017
Ties: 1900, 1910, 1925, 1959, 1961
Oct 1906–Sep 1909
36-Month
53.3°F
(11.8°C)
54.1°F
(12.3°C)
-0.8°F
(-0.5°C)
15th Coolest Coolest since: 1907 1905, 1918
108th Warmest Warmest since: 1908 2018
Ties: 1927, 1964
Oct 1905–Sep 1909
48-Month
53.6°F
(12.0°C)
54.1°F
(12.3°C)
-0.5°F
(-0.3°C)
24th Coolest Coolest since: 1908 1905
98th Warmest Warmest since: 1903 2019
Ties: 1902, 1937, 1971
Oct 1904–Sep 1909
60-Month
53.2°F
(11.8°C)
54.1°F
(12.3°C)
-0.9°F
(-0.5°C)
7th Coolest Coolest since: 1908 1908
114th Warmest Warmest since: 1904 2019
Ties: 1919

Citing This Page

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