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, May 2015

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  • Record Coolest
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
May 2015
1-Month
67.9°F
(19.9°C)
62.1°F
(16.7°C)
5.8°F
(3.2°C)
125th Coolest
Coolest since:
1967
4th Warmest
Warmest since:
2004
Apr–May 2015
2-Month
61.0°F
(16.1°C)
57.0°F
(13.9°C)
4.0°F
(2.2°C)
121st Coolest
Coolest since:
1907
8th Warmest
Warmest since:
2019
Mar–May 2015
3-Month
54.0°F
(12.2°C)
52.3°F
(11.3°C)
1.7°F
(0.9°C)
97th Coolest
Coolest since:
1940
32nd Warmest
Warmest since:
2012
Ties: 2008, 2009, 2020
Feb–May 2015
4-Month
47.1°F
(8.4°C)
47.8°F
(8.8°C)
-0.7°F
(-0.4°C)
41st Coolest
Coolest since:
1934
88th Warmest
Warmest since:
2012
Ties: 1963, 1996
Jan–May 2015
5-Month
44.1°F
(6.7°C)
44.9°F
(7.2°C)
-0.8°F
(-0.5°C)
40th Coolest
Coolest since:
1940
89th Warmest
Warmest since:
2012
Ties: 1956
Dec 2014–May 2015
6-Month
43.6°F
(6.4°C)
43.5°F
(6.4°C)
0.1°F
(0.0°C)
58th Coolest
Coolest since:
1904
70th Warmest
Warmest since:
2012
Ties: 1944, 1947, 1980, 2001, 2014
Nov 2014–May 2015
7-Month
43.7°F
(6.5°C)
43.8°F
(6.6°C)
-0.1°F
(-0.1°C)
51st Coolest
Coolest since:
1904
77th Warmest
Warmest since:
2012
Ties: 1906, 1928, 1959, 1987, 2001
Oct 2014–May 2015
8-Month
45.7°F
(7.6°C)
45.4°F
(7.4°C)
0.3°F
(0.2°C)
67th Coolest
Coolest since:
1904
61st Warmest
Warmest since:
2012
Ties: 1930
Sep 2014–May 2015
9-Month
48.3°F
(9.1°C)
47.8°F
(8.8°C)
0.5°F
(0.3°C)
74th Coolest
Coolest since:
1904, 1918
54th Warmest
Warmest since:
2012
Ties: 1898, 1962, 1980
Aug 2014–May 2015
10-Month
50.7°F
(10.4°C)
50.4°F
(10.2°C)
0.3°F
(0.2°C)
72nd Coolest
Coolest since:
1904
56th Warmest
Warmest since:
2012
Ties: 1898, 1909, 1922, 1973, 1989
Jul 2014–May 2015
11-Month
53.0°F
(11.7°C)
52.7°F
(11.5°C)
0.3°F
(0.2°C)
69th Coolest
Coolest since:
1904
59th Warmest
Warmest since:
2012
Ties: 1909, 1975
Jun 2014–May 2015
12-Month
54.7°F
(12.6°C)
54.3°F
(12.4°C)
0.4°F
(0.2°C)
77th Coolest
Coolest since:
1904
51st Warmest
Warmest since:
2012
Ties: 1903, 1922, 1983, 2003
Dec 2013–May 2015
18-Month
51.0°F
(10.6°C)
50.6°F
(10.3°C)
0.4°F
(0.3°C)
76th Coolest
Coolest since:
1905
51st Warmest
Warmest since:
2017
Ties: 1909, 1943, 1958, 1987, 1988, 1989, 1994
Jun 2013–May 2015
24-Month
54.8°F
(12.7°C)
54.2°F
(12.3°C)
0.6°F
(0.4°C)
84th Coolest
Coolest since:
1905
43rd Warmest
Warmest since:
2017
Ties: 1943, 1989
Jun 2012–May 2015
36-Month
55.4°F
(13.0°C)
54.2°F
(12.3°C)
1.2°F
(0.7°C)
101st Coolest
Coolest since:
1906
25th Warmest
Warmest since:
2018, 2021
Ties: 2003
Jun 2011–May 2015
48-Month
56.3°F
(13.5°C)
54.2°F
(12.3°C)
2.1°F
(1.2°C)
114th Coolest
Coolest since:
1907
11th Warmest
Warmest since:
2019
Ties: 2008, 2011
Jun 2010–May 2015
60-Month
56.4°F
(13.6°C)
54.2°F
(12.3°C)
2.2°F
(1.3°C)
113th Coolest
Coolest since:
1908
11th Warmest
Warmest since:
2020
Ties: 2010

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