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 2017

View Period (Months):
Download: csv json xml
  • Record Coolest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
September 2017
1-Month 		69.8°F
(21.0°C)		 67.4°F
(19.7°C)		 2.4°F
(1.3°C)		 104th Coolest
Coolest since:
 1917
25th Warmest
Warmest since:
 2018
Ties: 1959
Aug–Sep 2017
2-Month 		71.9°F
(22.2°C)		 70.6°F
(21.4°C)		 1.3°F
(0.8°C)		 93rd Coolest
Coolest since:
 1927, 1963
36th Warmest
Warmest since:
 2018
Ties: 1921, 1947, 1987, 1993
Jul–Sep 2017
3-Month 		74.1°F
(23.4°C)		 72.2°F
(22.3°C)		 1.9°F
(1.1°C)		 105th Coolest
Coolest since:
 1909
24th Warmest
Warmest since:
 2016
Ties: 1987, 1998
Jun–Sep 2017
4-Month 		73.9°F
(23.3°C)		 71.8°F
(22.1°C)		 2.1°F
(1.2°C)		 114th Coolest
Coolest since:
 1927
15th Warmest
Warmest since:
 2010
Ties: 2007, 2008
May–Sep 2017
5-Month 		71.7°F
(22.1°C)		 69.9°F
(21.1°C)		 1.8°F
(1.0°C)		 109th Coolest
Coolest since:
 1924, 1927
20th Warmest
Warmest since:
 2010
Ties: 1998, 1999
Apr–Sep 2017
6-Month 		69.7°F
(20.9°C)		 66.9°F
(19.4°C)		 2.8°F
(1.5°C)		 121st Coolest
Coolest since:
 1907
8th Warmest
Warmest since:
 2010
Mar–Sep 2017
7-Month 		66.0°F
(18.9°C)		 63.5°F
(17.5°C)		 2.5°F
(1.4°C)		 119th Coolest
Coolest since:
 1924
10th Warmest
Warmest since:
 2010
Ties: 1991, 2020, 2022
Feb–Sep 2017
8-Month 		63.3°F
(17.4°C)		 59.8°F
(15.4°C)		 3.5°F
(2.0°C)		 124th Coolest
Coolest since:
 1907
5th Warmest
Warmest since:
 2012
Ties: 2002
Jan–Sep 2017
9-Month 		60.6°F
(15.9°C)		 56.9°F
(13.8°C)		 3.7°F
(2.1°C)		 126th Coolest
Coolest since:
 1940
3rd Warmest
Warmest since:
 2012
Dec 2016–Sep 2017
10-Month 		58.5°F
(14.7°C)		 54.8°F
(12.7°C)		 3.7°F
(2.0°C)		 123rd Coolest
Coolest since:
 1904
5th Warmest
Warmest since:
 2012
Nov 2016–Sep 2017
11-Month 		57.6°F
(14.2°C)		 54.0°F
(12.2°C)		 3.6°F
(2.0°C)		 124th Coolest
Coolest since:
 1904
4th Warmest
Warmest since:
 2012
Oct 2016–Sep 2017
12-Month 		57.8°F
(14.3°C)		 54.2°F
(12.3°C)		 3.6°F
(2.0°C)		 124th Coolest
Coolest since:
 1904
4th Warmest
Warmest since:
 2012
Apr 2016–Sep 2017
18-Month 		61.7°F
(16.5°C)		 58.4°F
(14.7°C)		 3.3°F
(1.8°C)		 123rd Coolest
Coolest since:
 1904, 1918
5th Warmest
Warmest since:
 2012
Oct 2015–Sep 2017
24-Month 		58.0°F
(14.4°C)		 54.2°F
(12.3°C)		 3.8°F
(2.1°C)		 126th Coolest
Coolest since:
 1905
1st Warmest
Warmest to Date
 2017
Oct 2014–Sep 2017
36-Month 		57.1°F
(13.9°C)		 54.2°F
(12.3°C)		 2.9°F
(1.6°C)		 119th Coolest
Coolest since:
 1905, 1918
7th Warmest
Warmest since:
 2018
Oct 2013–Sep 2017
48-Month 		56.5°F
(13.6°C)		 54.2°F
(12.3°C)		 2.3°F
(1.3°C)		 117th Coolest
Coolest since:
 1905
8th Warmest
Warmest since:
 2019
Ties: 2014
Oct 2012–Sep 2017
60-Month 		56.4°F
(13.6°C)		 54.1°F
(12.3°C)		 2.3°F
(1.3°C)		 113th Coolest
Coolest since:
 1908
11th Warmest
Warmest since:
 2020
Ties: 2002, 2011

Citing This Page