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 2019

View Period (Months):
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  • 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 2019
1-Month
71.6°F
(22.0°C)
67.4°F
(19.7°C)
4.2°F
(2.3°C)
120th Coolest
Coolest since:
1917
9th Warmest
Warmest since:
2018
Aug–Sep 2019
2-Month
74.0°F
(23.3°C)
70.6°F
(21.4°C)
3.4°F
(1.9°C)
123rd Coolest
Coolest since:
1927, 1963
6th Warmest
Warmest since:
2018
Ties: 2002
Jul–Sep 2019
3-Month
75.9°F
(24.4°C)
72.2°F
(22.3°C)
3.7°F
(2.1°C)
125th Coolest
Coolest since:
1909
4th Warmest
Warmest since:
2016
Ties: 1900, 2005
Jun–Sep 2019
4-Month
75.4°F
(24.1°C)
71.8°F
(22.1°C)
3.6°F
(2.0°C)
125th Coolest
Coolest since:
1927
4th Warmest
Warmest since:
2010
May–Sep 2019
5-Month
73.7°F
(23.2°C)
69.9°F
(21.1°C)
3.8°F
(2.1°C)
126th Coolest
Coolest since:
1924, 1927
3rd Warmest
Warmest since:
2010
Apr–Sep 2019
6-Month
71.2°F
(21.8°C)
66.9°F
(19.4°C)
4.3°F
(2.4°C)
127th Coolest
Coolest since:
1907
2nd Warmest
Warmest since:
2010
Mar–Sep 2019
7-Month
67.2°F
(19.6°C)
63.5°F
(17.5°C)
3.7°F
(2.1°C)
126th Coolest
Coolest since:
1924
3rd Warmest
Warmest since:
2010
Feb–Sep 2019
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 since:
2012
Ties: 2010
Jan–Sep 2019
9-Month
60.5°F
(15.8°C)
56.9°F
(13.8°C)
3.6°F
(2.0°C)
125th Coolest
Coolest since:
1940
4th Warmest
Warmest since:
2012
Ties: 2020
Dec 2018–Sep 2019
10-Month
58.6°F
(14.8°C)
54.8°F
(12.7°C)
3.8°F
(2.1°C)
124th Coolest
Coolest since:
1904
4th Warmest
Warmest since:
2012
Nov 2018–Sep 2019
11-Month
57.4°F
(14.1°C)
54.0°F
(12.2°C)
3.4°F
(1.9°C)
123rd Coolest
Coolest since:
1904
5th Warmest
Warmest since:
2012
Oct 2018–Sep 2019
12-Month
57.6°F
(14.2°C)
54.1°F
(12.3°C)
3.5°F
(1.9°C)
123rd Coolest
Coolest since:
1904
5th Warmest
Warmest since:
2012
Ties: 1991
Apr 2018–Sep 2019
18-Month
61.9°F
(16.6°C)
58.5°F
(14.7°C)
3.4°F
(1.9°C)
124th Coolest
Coolest since:
1904, 1918
4th Warmest
Warmest since:
2012
Oct 2017–Sep 2019
24-Month
57.3°F
(14.1°C)
54.1°F
(12.3°C)
3.2°F
(1.8°C)
120th Coolest
Coolest since:
1905
7th Warmest
Warmest since:
2017
Oct 2016–Sep 2019
36-Month
57.5°F
(14.2°C)
54.2°F
(12.3°C)
3.3°F
(1.9°C)
124th Coolest
Coolest since:
1905, 1918
2nd Warmest
Warmest since:
2018
Ties: 2021
Oct 2015–Sep 2019
48-Month
57.7°F
(14.3°C)
54.2°F
(12.3°C)
3.5°F
(2.0°C)
124th Coolest
Coolest since:
1905
1st Warmest
Warmest to Date
2019
Oct 2014–Sep 2019
60-Month
57.2°F
(14.0°C)
54.2°F
(12.3°C)
3.0°F
(1.7°C)
120th Coolest
Coolest since:
1908
4th Warmest
Warmest to Date
2020

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