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, April 2009

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  • Record Coolest
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  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
April 2009
1-Month
55.0°F
(12.8°C)
52.0°F
(11.1°C)
3.0°F
(1.7°C)
107th Coolest
Coolest since:
1907
22nd Warmest
Warmest since:
2017
Ties: 1974, 2012
Mar–Apr 2009
2-Month
49.2°F
(9.6°C)
47.4°F
(8.6°C)
1.8°F
(1.0°C)
91st Coolest
Coolest since:
1940
38th Warmest
Warmest since:
1921
Feb–Apr 2009
3-Month
45.6°F
(7.6°C)
43.0°F
(6.1°C)
2.6°F
(1.5°C)
101st Coolest
Coolest since:
1934
28th Warmest
Warmest since:
2012
Ties: 1910, 2004
Jan–Apr 2009
4-Month
41.9°F
(5.5°C)
40.6°F
(4.8°C)
1.3°F
(0.7°C)
87th Coolest
Coolest since:
1940
42nd Warmest
Warmest since:
2012
Ties: 1903, 1989
Dec 2008–Apr 2009
5-Month
41.6°F
(5.3°C)
39.7°F
(4.3°C)
1.9°F
(1.0°C)
95th Coolest
Coolest since:
1904
33rd Warmest
Warmest since:
2012
Ties: 1925, 1950
Nov 2008–Apr 2009
6-Month
42.3°F
(5.7°C)
40.8°F
(4.9°C)
1.5°F
(0.8°C)
93rd Coolest
Coolest since:
1904
35th Warmest
Warmest since:
2012
Oct 2008–Apr 2009
7-Month
44.3°F
(6.8°C)
43.0°F
(6.1°C)
1.3°F
(0.7°C)
90th Coolest
Coolest since:
1904
38th Warmest
Warmest since:
2012
Ties: 1903, 1942, 1953, 1986
Sep 2008–Apr 2009
8-Month
47.4°F
(8.6°C)
46.0°F
(7.8°C)
1.4°F
(0.8°C)
96th Coolest
Coolest since:
1918
32nd Warmest
Warmest since:
2012
Ties: 1950, 1957, 1983, 1997, 2011
Aug 2008–Apr 2009
9-Month
50.3°F
(10.2°C)
49.1°F
(9.5°C)
1.2°F
(0.7°C)
94th Coolest
Coolest since:
1918
34th Warmest
Warmest since:
2017
Ties: 1942, 1997, 2005
Jul 2008–Apr 2009
10-Month
53.0°F
(11.7°C)
51.7°F
(10.9°C)
1.3°F
(0.8°C)
95th Coolest
Coolest since:
1918
33rd Warmest
Warmest since:
2012, 2017
Jun 2008–Apr 2009
11-Month
55.0°F
(12.8°C)
53.4°F
(11.9°C)
1.6°F
(0.9°C)
102nd Coolest
Coolest since:
1904
26th Warmest
Warmest since:
2012
Ties: 1990
May 2008–Apr 2009
12-Month
55.5°F
(13.1°C)
54.2°F
(12.3°C)
1.3°F
(0.8°C)
97th Coolest
Coolest since:
1918
31st Warmest
Warmest since:
2012
Ties: 1913, 1960
Nov 2007–Apr 2009
18-Month
51.6°F
(10.9°C)
49.7°F
(9.8°C)
1.9°F
(1.1°C)
106th Coolest
Coolest since:
1905
21st Warmest
Warmest since:
2017
May 2007–Apr 2009
24-Month
56.4°F
(13.6°C)
54.2°F
(12.3°C)
2.2°F
(1.3°C)
115th Coolest
Coolest since:
1905
12th Warmest
Warmest since:
2017
Ties: 2006, 2016
May 2006–Apr 2009
36-Month
56.3°F
(13.5°C)
54.2°F
(12.3°C)
2.1°F
(1.2°C)
115th Coolest
Coolest since:
1906
11th Warmest
Warmest since:
2021
Ties: 2000, 2007
May 2005–Apr 2009
48-Month
56.5°F
(13.6°C)
54.2°F
(12.3°C)
2.3°F
(1.3°C)
116th Coolest
Coolest since:
1905
9th Warmest
Warmest since:
2019, 2020, 2022
Ties: 2008, 2017
May 2004–Apr 2009
60-Month
56.3°F
(13.5°C)
54.1°F
(12.3°C)
2.2°F
(1.2°C)
113th Coolest
Coolest since:
1908
11th Warmest
Warmest since:
2020
Ties: 2008, 2010, 2015

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