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 2018

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
September 2018
1-Month		73.6°F
(23.1°C)		67.4°F
(19.7°C)		6.2°F
(3.4°C)		128th Coolest
Coolest since:
1917
1st Warmest
Warmest to Date
2018
Aug–Sep 2018
2-Month		76.1°F
(24.5°C)		70.6°F
(21.4°C)		5.5°F
(3.1°C)		128th Coolest
Coolest since:
1927, 1963
1st Warmest
Warmest to Date
2018
Jul–Sep 2018
3-Month		76.5°F
(24.7°C)		72.2°F
(22.3°C)		4.3°F
(2.4°C)		127th Coolest
Coolest since:
1909
2nd Warmest
Warmest since:
2016
Jun–Sep 2018
4-Month		75.5°F
(24.2°C)		71.9°F
(22.2°C)		3.6°F
(2.0°C)		126th Coolest
Coolest since:
1927
3rd Warmest
Warmest since:
2010
May–Sep 2018
5-Month		74.1°F
(23.4°C)		69.9°F
(21.1°C)		4.2°F
(2.3°C)		127th Coolest
Coolest since:
1924, 1927
2nd Warmest
Warmest since:
2010
Apr–Sep 2018
6-Month		70.3°F
(21.3°C)		66.9°F
(19.4°C)		3.4°F
(1.9°C)		125th Coolest
Coolest since:
1907
4th Warmest
Warmest since:
2010
Ties: 2012
Mar–Sep 2018
7-Month		66.1°F
(18.9°C)		63.5°F
(17.5°C)		2.6°F
(1.4°C)		120th Coolest
Coolest since:
1924
9th Warmest
Warmest since:
2010
Feb–Sep 2018
8-Month		63.2°F
(17.3°C)		59.8°F
(15.4°C)		3.4°F
(1.9°C)		122nd Coolest
Coolest since:
1907
7th Warmest
Warmest since:
2012
Ties: 2016
Jan–Sep 2018
9-Month		59.8°F
(15.4°C)		56.9°F
(13.8°C)		2.9°F
(1.6°C)		120th Coolest
Coolest since:
1940
9th Warmest
Warmest since:
2012
Ties: 1991
Dec 2017–Sep 2018
10-Month		57.5°F
(14.2°C)		54.8°F
(12.7°C)		2.7°F
(1.5°C)		115th Coolest
Coolest since:
1904
13th Warmest
Warmest since:
2012
Nov 2017–Sep 2018
11-Month		56.5°F
(13.6°C)		54.0°F
(12.2°C)		2.5°F
(1.4°C)		116th Coolest
Coolest since:
1904
12th Warmest
Warmest since:
2012
Ties: 2022
Oct 2017–Sep 2018
12-Month		57.0°F
(13.9°C)		54.2°F
(12.3°C)		2.8°F
(1.6°C)		118th Coolest
Coolest since:
1904
10th Warmest
Warmest since:
2012
Ties: 2022
Apr 2017–Sep 2018
18-Month		61.3°F
(16.3°C)		58.4°F
(14.7°C)		2.9°F
(1.6°C)		120th Coolest
Coolest since:
1918
8th Warmest
Warmest since:
2012
Oct 2016–Sep 2018
24-Month		57.4°F
(14.1°C)		54.2°F
(12.3°C)		3.2°F
(1.8°C)		123rd Coolest
Coolest since:
1905
4th Warmest
Warmest since:
2017
Ties: 2013, 2021
Oct 2015–Sep 2018
36-Month		57.7°F
(14.3°C)		54.2°F
(12.3°C)		3.5°F
(2.0°C)		125th Coolest
Coolest since:
1905, 1918
1st Warmest
Warmest to Date
2018
Oct 2014–Sep 2018
48-Month		57.1°F
(13.9°C)		54.2°F
(12.3°C)		2.9°F
(1.6°C)		120th Coolest
Coolest since:
1905
5th Warmest
Warmest since:
2019
Ties: 2013
Oct 2013–Sep 2018
60-Month		56.6°F
(13.7°C)		54.1°F
(12.3°C)		2.5°F
(1.4°C)		117th Coolest
Coolest since:
1908
7th Warmest
Warmest since:
2020
Ties: 2014, 2016

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