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 1930

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1930
1-Month
72.6°F
(22.6°C)
67.4°F
(19.7°C)
5.2°F
(2.9°C)
127th Coolest
Coolest since:
1917
2nd Warmest
Warmest to Date
2018
Aug–Sep 1930
2-Month
72.9°F
(22.7°C)
70.6°F
(21.4°C)
2.3°F
(1.3°C)
106th Coolest
Coolest since:
1927, 1963
23rd Warmest
Warmest since:
2018
Ties: 1970, 2003
Jul–Sep 1930
3-Month
74.2°F
(23.4°C)
72.2°F
(22.3°C)
2.0°F
(1.1°C)
110th Coolest
Coolest since:
1909
19th Warmest
Warmest since:
2016
Ties: 1977, 1993, 1995, 2007
Jun–Sep 1930
4-Month
73.7°F
(23.2°C)
71.9°F
(22.2°C)
1.8°F
(1.0°C)
110th Coolest
Coolest since:
1927
19th Warmest
Warmest since:
2010
May–Sep 1930
5-Month
71.8°F
(22.1°C)
69.9°F
(21.1°C)
1.9°F
(1.0°C)
112th Coolest
Coolest since:
1924, 1927
17th Warmest
Warmest since:
2010
Ties: 1987, 2005
Apr–Sep 1930
6-Month
68.1°F
(20.1°C)
66.9°F
(19.4°C)
1.2°F
(0.7°C)
96th Coolest
Coolest since:
1907
33rd Warmest
Warmest since:
2010
Ties: 2009
Mar–Sep 1930
7-Month
64.4°F
(18.0°C)
63.5°F
(17.5°C)
0.9°F
(0.5°C)
93rd Coolest
Coolest since:
1924
36th Warmest
Warmest since:
2010
Ties: 1898, 1900, 1925, 1936, 1949, 1953, 1994, 2000
Feb–Sep 1930
8-Month
61.2°F
(16.2°C)
59.8°F
(15.4°C)
1.4°F
(0.8°C)
98th Coolest
Coolest since:
1907
31st Warmest
Warmest since:
2012
Ties: 1939, 1985, 2005
Jan–Sep 1930
9-Month
58.2°F
(14.6°C)
56.9°F
(13.8°C)
1.3°F
(0.8°C)
100th Coolest
Coolest since:
1940
29th Warmest
Warmest since:
2012
Ties: 1925, 1939, 2000, 2005
Dec 1929–Sep 1930
10-Month
56.1°F
(13.4°C)
54.8°F
(12.7°C)
1.3°F
(0.7°C)
92nd Coolest
Coolest since:
1904
36th Warmest
Warmest since:
2012
Nov 1929–Sep 1930
11-Month
55.2°F
(12.9°C)
54.0°F
(12.2°C)
1.2°F
(0.7°C)
95th Coolest
Coolest since:
1904
33rd Warmest
Warmest since:
2012
Ties: 1954, 1985, 2009
Oct 1929–Sep 1930
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, 1973, 1974, 1980, 1987
Apr 1929–Sep 1930
18-Month
58.9°F
(14.9°C)
58.4°F
(14.7°C)
0.5°F
(0.2°C)
75th Coolest
Coolest since:
1918
53rd Warmest
Warmest since:
2012
Ties: 1922, 1945, 1994
Oct 1928–Sep 1930
24-Month
54.8°F
(12.7°C)
54.2°F
(12.3°C)
0.6°F
(0.4°C)
80th Coolest
Coolest since:
1905
47th Warmest
Warmest since:
2017
Ties: 1975, 1985, 1988
Oct 1927–Sep 1930
36-Month
54.5°F
(12.5°C)
54.2°F
(12.3°C)
0.3°F
(0.2°C)
69th Coolest
Coolest since:
1905, 1918
57th Warmest
Warmest since:
2018
Ties: 1922, 1931, 1956, 1959, 1973, 1977, 1994
Oct 1926–Sep 1930
48-Month
54.1°F
(12.3°C)
54.2°F
(12.3°C)
-0.1°F
(0.0°C)
52nd Coolest
Coolest since:
1905
73rd Warmest
Warmest since:
2019
Ties: 1959, 1978
Oct 1925–Sep 1930
60-Month
53.7°F
(12.1°C)
54.1°F
(12.3°C)
-0.4°F
(-0.2°C)
26th Coolest
Coolest since:
1908
98th Warmest
Warmest since:
2020
Ties: 1903, 1916, 1917, 1921, 1929, 1963

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