Statewide Rankings

Statewide Data Info
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Delaware

Average Temperature Rankings, September 1989

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PeriodValue1901-2000
Mean
AnomalyRank
(1895-2022)
Warmest/Coolest
Since
Record
September 1989
1-Month
68.7°F
(20.4°C)
67.4°F
(19.7°C)
1.3°F
(0.7°C)
87th Coolest
Coolest since:
1917
42nd Warmest
Warmest since:
2018
Ties: 1942, 2020
Aug–Sep 1989
2-Month
71.4°F
(21.9°C)
70.6°F
(21.4°C)
0.8°F
(0.5°C)
78th Coolest
Coolest since:
1927, 1963
51st Warmest
Warmest since:
2018
Ties: 1911, 1991
Jul–Sep 1989
3-Month
72.6°F
(22.6°C)
72.2°F
(22.3°C)
0.4°F
(0.3°C)
76th Coolest
Coolest since:
1909
53rd Warmest
Warmest since:
2016
Ties: 1895, 1942, 1947, 1954, 1957
Jun–Sep 1989
4-Month
73.0°F
(22.8°C)
71.9°F
(22.2°C)
1.1°F
(0.6°C)
89th Coolest
Coolest since:
1927
40th Warmest
Warmest since:
2010
Ties: 1906, 1955, 1957, 2003
May–Sep 1989
5-Month
70.7°F
(21.5°C)
69.9°F
(21.1°C)
0.8°F
(0.4°C)
80th Coolest
Coolest since:
1924, 1927
49th Warmest
Warmest since:
2010
Ties: 1901, 1921, 1936, 1952, 1983, 2009
Apr–Sep 1989
6-Month
67.5°F
(19.7°C)
66.9°F
(19.4°C)
0.6°F
(0.3°C)
71st Coolest
Coolest since:
1907
58th Warmest
Warmest since:
2010
Ties: 1911, 1943, 1945
Mar–Sep 1989
7-Month
63.9°F
(17.7°C)
63.5°F
(17.5°C)
0.4°F
(0.2°C)
67th Coolest
Coolest since:
1924
62nd Warmest
Warmest since:
2010
Ties: 1910, 1933
Feb–Sep 1989
8-Month
60.4°F
(15.8°C)
59.8°F
(15.4°C)
0.6°F
(0.4°C)
75th Coolest
Coolest since:
1907
54th Warmest
Warmest since:
2012
Ties: 1944, 1980, 1997
Jan–Sep 1989
9-Month
57.9°F
(14.4°C)
56.9°F
(13.8°C)
1.0°F
(0.6°C)
91st Coolest
Coolest since:
1940
38th Warmest
Warmest since:
2012
Ties: 1898, 1932, 1976, 2009
Dec 1988–Sep 1989
10-Month
55.7°F
(13.2°C)
54.8°F
(12.7°C)
0.9°F
(0.5°C)
82nd Coolest
Coolest since:
1904
46th Warmest
Warmest since:
2012
Ties: 1942, 1987
Nov 1988–Sep 1989
11-Month
55.0°F
(12.8°C)
54.0°F
(12.2°C)
1.0°F
(0.6°C)
89th Coolest
Coolest since:
1904
39th Warmest
Warmest since:
2012
Ties: 1980, 1986, 1990, 1993
Oct 1988–Sep 1989
12-Month
54.7°F
(12.6°C)
54.2°F
(12.3°C)
0.5°F
(0.3°C)
77th Coolest
Coolest since:
1904
51st Warmest
Warmest since:
2012
Ties: 1900, 1937, 1947, 1959, 1997, 2014
Apr 1988–Sep 1989
18-Month
59.0°F
(15.0°C)
58.4°F
(14.7°C)
0.6°F
(0.3°C)
80th Coolest
Coolest since:
1918
48th Warmest
Warmest since:
2012
Ties: 1901, 1933, 1950, 1983
Oct 1987–Sep 1989
24-Month
54.6°F
(12.6°C)
54.2°F
(12.3°C)
0.4°F
(0.3°C)
73rd Coolest
Coolest since:
1905
54th Warmest
Warmest since:
2017
Ties: 1914, 1942, 1960, 1977, 1994
Oct 1986–Sep 1989
36-Month
54.8°F
(12.7°C)
54.2°F
(12.3°C)
0.6°F
(0.4°C)
79th Coolest
Coolest since:
1905, 1918
47th Warmest
Warmest since:
2018
Ties: 1939, 1950, 1952, 1990
Oct 1985–Sep 1989
48-Month
54.9°F
(12.7°C)
54.2°F
(12.3°C)
0.7°F
(0.4°C)
85th Coolest
Coolest since:
1905
40th Warmest
Warmest since:
2019
Ties: 1990, 1995
Oct 1984–Sep 1989
60-Month
55.1°F
(12.8°C)
54.1°F
(12.3°C)
1.0°F
(0.5°C)
92nd Coolest
Coolest since:
1908
32nd Warmest
Warmest since:
2020
Ties: 1987, 1998

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