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, December 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
(1895-2021)
Warmest/Coolest
Since
Record
December 2019
1-Month
40.0°F
(4.4°C)
36.2°F
(2.3°C)
3.8°F
(2.1°C)
103rd Coolest
Coolest since:
1989
25th Warmest
Warmest since:
2015
Ties: 1940
Nov–Dec 2019
2-Month
41.8°F
(5.4°C)
40.9°F
(4.9°C)
0.9°F
(0.5°C)
70th Coolest
Coolest since:
1917
58th Warmest
Warmest since:
2015
Ties: 1900, 1970, 1988, 1997, 2017
Oct–Dec 2019
3-Month
48.4°F
(9.1°C)
46.1°F
(7.8°C)
2.3°F
(1.3°C)
102nd Coolest
Coolest since:
1917
26th Warmest
Warmest since:
2015
Ties: 2003
Sep–Dec 2019
4-Month
54.2°F
(12.3°C)
51.4°F
(10.8°C)
2.8°F
(1.5°C)
113th Coolest
Coolest since:
1917
15th Warmest
Warmest since:
2015
Aug–Dec 2019
5-Month
58.6°F
(14.8°C)
55.9°F
(13.3°C)
2.7°F
(1.5°C)
115th Coolest
Coolest since:
1917
13th Warmest
Warmest since:
2015
Ties: 1998
Jul–Dec 2019
6-Month
62.2°F
(16.8°C)
59.2°F
(15.1°C)
3.0°F
(1.7°C)
120th Coolest
Coolest since:
1917
8th Warmest
Warmest since:
2015
Ties: 2012
Jun–Dec 2019
7-Month
63.8°F
(17.7°C)
60.8°F
(16.0°C)
3.0°F
(1.7°C)
121st Coolest
Coolest since:
1917
7th Warmest
Warmest since:
2015
Ties: 1931
May–Dec 2019
8-Month
64.2°F
(17.9°C)
61.0°F
(16.1°C)
3.2°F
(1.8°C)
124th Coolest
Coolest since:
1917
4th Warmest
Warmest since:
2015
Ties: 2012, 2021
Apr–Dec 2019
9-Month
63.6°F
(17.6°C)
60.0°F
(15.6°C)
3.6°F
(2.0°C)
125th Coolest
Coolest since:
1917
3rd Warmest
Warmest since:
2015
Mar–Dec 2019
10-Month
61.6°F
(16.4°C)
58.3°F
(14.6°C)
3.3°F
(1.8°C)
123rd Coolest
Coolest since:
1917
5th Warmest
Warmest since:
2012
Ties: 2016
Feb–Dec 2019
11-Month
59.5°F
(15.3°C)
56.1°F
(13.4°C)
3.4°F
(1.9°C)
124th Coolest
Coolest since:
1917
4th Warmest
Warmest since:
2012
Ties: 2016
Jan–Dec 2019
12-Month
57.5°F
(14.2°C)
54.2°F
(12.3°C)
3.3°F
(1.9°C)
124th Coolest
Coolest since:
1904
4th Warmest
Warmest since:
2012
Jul 2018–Dec 2019
18-Month
59.2°F
(15.1°C)
55.8°F
(13.2°C)
3.4°F
(1.9°C)
122nd Coolest
Coolest since:
1904
5th Warmest
Warmest since:
2012
Ties: 2021
Jan 2018–Dec 2019
24-Month
57.3°F
(14.1°C)
54.2°F
(12.3°C)
3.1°F
(1.8°C)
121st Coolest
Coolest since:
1905
6th Warmest
Warmest since:
2012
Jan 2017–Dec 2019
36-Month
57.4°F
(14.1°C)
54.2°F
(12.3°C)
3.2°F
(1.8°C)
122nd Coolest
Coolest since:
1905
4th Warmest
Warmest since:
2021
Ties: 2018
Jan 2016–Dec 2019
48-Month
57.4°F
(14.1°C)
54.2°F
(12.3°C)
3.2°F
(1.8°C)
122nd Coolest
Coolest since:
1907
3rd Warmest
Warmest to Date
2020
Jan 2015–Dec 2019
60-Month
57.2°F
(14.0°C)
54.2°F
(12.3°C)
3.0°F
(1.7°C)
121st Coolest
Coolest since:
1905
3rd Warmest
Warmest to Date
2020, 2021

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