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 2010

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  • Record Warmest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
September 2010
1-Month 		71.4°F
(21.9°C)		 67.4°F
(19.7°C)		 4.0°F
(2.2°C)		 119th Coolest
Coolest since:
 1917
10th Warmest
Warmest since:
 2018
Ties: 1900
Aug–Sep 2010
2-Month 		74.2°F
(23.4°C)		 70.6°F
(21.4°C)		 3.6°F
(2.0°C)		 124th Coolest
Coolest since:
 1927, 1963
5th Warmest
Warmest since:
 2018
Jul–Sep 2010
3-Month 		76.1°F
(24.5°C)		 72.2°F
(22.3°C)		 3.9°F
(2.2°C)		 126th Coolest
Coolest since:
 1909
3rd Warmest
Warmest to Date
 2016
Jun–Sep 2010
4-Month 		76.4°F
(24.7°C)		 71.8°F
(22.1°C)		 4.6°F
(2.6°C)		 128th Coolest
Coolest since:
 1927
1st Warmest
Warmest to Date
 2010
May–Sep 2010
5-Month 		74.4°F
(23.6°C)		 69.9°F
(21.1°C)		 4.5°F
(2.5°C)		 128th Coolest
Coolest since:
 1924, 1927
1st Warmest
Warmest to Date
 2010
Apr–Sep 2010
6-Month 		71.6°F
(22.0°C)		 67.0°F
(19.4°C)		 4.6°F
(2.6°C)		 128th Coolest
Coolest since:
 1907
1st Warmest
Warmest to Date
 2010
Mar–Sep 2010
7-Month 		68.2°F
(20.1°C)		 63.4°F
(17.4°C)		 4.8°F
(2.7°C)		 128th Coolest
Coolest since:
 1924
1st Warmest
Warmest to Date
 2010
Feb–Sep 2010
8-Month 		63.6°F
(17.6°C)		 59.8°F
(15.4°C)		 3.8°F
(2.2°C)		 127th Coolest
Coolest since:
 1907
2nd Warmest
Warmest to Date
 2012
Ties: 2019
Jan–Sep 2010
9-Month 		60.3°F
(15.7°C)		 56.9°F
(13.8°C)		 3.4°F
(1.9°C)		 123rd Coolest
Coolest since:
 1940
6th Warmest
Warmest since:
 2012
Ties: 1998
Dec 2009–Sep 2010
10-Month 		57.9°F
(14.4°C)		 54.8°F
(12.7°C)		 3.1°F
(1.7°C)		 119th Coolest
Coolest since:
 1904
9th Warmest
Warmest since:
 2012
Nov 2009–Sep 2010
11-Month 		57.3°F
(14.1°C)		 54.0°F
(12.2°C)		 3.3°F
(1.9°C)		 122nd Coolest
Coolest since:
 1904
6th Warmest
Warmest since:
 2012
Ties: 1991
Oct 2009–Sep 2010
12-Month 		57.2°F
(14.0°C)		 54.2°F
(12.3°C)		 3.0°F
(1.7°C)		 119th Coolest
Coolest since:
 1904
9th Warmest
Warmest since:
 2012
Apr 2009–Sep 2010
18-Month 		60.8°F
(16.0°C)		 58.4°F
(14.7°C)		 2.4°F
(1.3°C)		 117th Coolest
Coolest since:
 1904, 1918
11th Warmest
Warmest since:
 2012
Ties: 1991, 2006, 2008, 2013
Oct 2008–Sep 2010
24-Month 		56.2°F
(13.4°C)		 54.1°F
(12.3°C)		 2.1°F
(1.1°C)		 111th Coolest
Coolest since:
 1905
16th Warmest
Warmest since:
 2017
Ties: 2000, 2003, 2006
Oct 2007–Sep 2010
36-Month 		56.5°F
(13.6°C)		 54.2°F
(12.3°C)		 2.3°F
(1.3°C)		 116th Coolest
Coolest since:
 1905, 1918
10th Warmest
Warmest since:
 2018
Ties: 2014
Oct 2006–Sep 2010
48-Month 		56.4°F
(13.6°C)		 54.1°F
(12.3°C)		 2.3°F
(1.3°C)		 115th Coolest
Coolest since:
 1905
10th Warmest
Warmest since:
 2019
Ties: 2008, 2011
Oct 2005–Sep 2010
60-Month 		56.5°F
(13.6°C)		 54.1°F
(12.3°C)		 2.4°F
(1.3°C)		 114th Coolest
Coolest since:
 1908
10th Warmest
Warmest to Date
 2020

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