Statewide Rankings

Statewide Data Info
Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Delaware

Average Temperature Rankings, September 1980

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1980
1-Month
70.9°F
(21.6°C)
67.4°F
(19.7°C)
3.5°F
(1.9°C)
115th Coolest
Coolest since:
1917
14th Warmest
Warmest since:
2018
Ties: 1970
Aug–Sep 1980
2-Month
74.0°F
(23.3°C)
70.6°F
(21.4°C)
3.4°F
(1.9°C)
122nd Coolest
Coolest since:
1927, 1963
7th Warmest
Warmest since:
2018
Ties: 2019
Jul–Sep 1980
3-Month
75.0°F
(23.9°C)
72.2°F
(22.3°C)
2.8°F
(1.6°C)
118th Coolest
Coolest since:
1909
11th Warmest
Warmest since:
2016
Ties: 2022
Jun–Sep 1980
4-Month
73.5°F
(23.1°C)
71.9°F
(22.2°C)
1.6°F
(0.9°C)
107th Coolest
Coolest since:
1927
22nd Warmest
Warmest since:
2010
Ties: 1898, 1931, 1993, 1995, 2006
May–Sep 1980
5-Month
71.6°F
(22.0°C)
69.9°F
(21.1°C)
1.7°F
(0.9°C)
106th Coolest
Coolest since:
1924, 1927
23rd Warmest
Warmest since:
2010
Ties: 1993
Apr–Sep 1980
6-Month
68.8°F
(20.4°C)
66.9°F
(19.4°C)
1.9°F
(1.0°C)
110th Coolest
Coolest since:
1907
19th Warmest
Warmest since:
2010
Ties: 2020
Mar–Sep 1980
7-Month
64.7°F
(18.2°C)
63.5°F
(17.5°C)
1.2°F
(0.7°C)
98th Coolest
Coolest since:
1924
31st Warmest
Warmest since:
2010
Ties: 2005
Feb–Sep 1980
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, 1989, 1997
Jan–Sep 1980
9-Month
57.4°F
(14.1°C)
56.9°F
(13.8°C)
0.5°F
(0.3°C)
73rd Coolest
Coolest since:
1940
56th Warmest
Warmest since:
2012
Ties: 1906, 1937, 1942, 1974, 1977
Dec 1979–Sep 1980
10-Month
55.5°F
(13.1°C)
54.8°F
(12.7°C)
0.7°F
(0.4°C)
78th Coolest
Coolest since:
1904
50th Warmest
Warmest since:
2012
Ties: 1937, 1938
Nov 1979–Sep 1980
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: 1986, 1989, 1990, 1993
Oct 1979–Sep 1980
12-Month
55.1°F
(12.8°C)
54.2°F
(12.3°C)
0.9°F
(0.5°C)
86th Coolest
Coolest since:
1904
42nd Warmest
Warmest since:
2012
Ties: 1898, 1930, 1973, 1974, 1987
Apr 1979–Sep 1980
18-Month
58.8°F
(14.9°C)
58.4°F
(14.7°C)
0.4°F
(0.2°C)
71st Coolest
Coolest since:
1918
57th Warmest
Warmest since:
2012
Ties: 1937, 1997
Oct 1978–Sep 1980
24-Month
54.3°F
(12.4°C)
54.2°F
(12.3°C)
0.1°F
(0.1°C)
55th Coolest
Coolest since:
1905
72nd Warmest
Warmest since:
2017
Ties: 1929, 1945, 1972, 1981
Oct 1977–Sep 1980
36-Month
53.8°F
(12.1°C)
54.2°F
(12.3°C)
-0.4°F
(-0.2°C)
33rd Coolest
Coolest since:
1905, 1918
93rd Warmest
Warmest since:
2018
Ties: 1899, 1910, 1911, 1937, 1940, 1962, 1982
Oct 1976–Sep 1980
48-Month
53.7°F
(12.1°C)
54.2°F
(12.3°C)
-0.5°F
(-0.2°C)
28th Coolest
Coolest since:
1905
97th Warmest
Warmest since:
2019
Ties: 1911, 1941, 1981, 1982
Oct 1975–Sep 1980
60-Month
54.1°F
(12.3°C)
54.1°F
(12.3°C)
0.0°F
(0.0°C)
48th Coolest
Coolest since:
1908
76th Warmest
Warmest since:
2020
Ties: 1901, 1931, 1942, 1943, 1973, 1983, 1984

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