National Rankings

National Data Info
Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Contiguous U.S.

Average Temperature Rankings, December 2017

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  • Record Coolest
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  • Bottom 1/3
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  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
December 2017
1-Month
34.29°F
(1.27°C)
32.68°F
(0.38°C)
1.61°F
(0.89°C)
87th Coolest
Coolest since:
1983
42nd Warmest
Warmest since:
2021
Ties: 1975
Nov–Dec 2017
2-Month
39.66°F
(4.26°C)
37.19°F
(2.88°C)
2.47°F
(1.38°C)
117th Coolest
Coolest since:
2000
12th Warmest
Warmest since:
2021
Oct–Dec 2017
3-Month
45.00°F
(7.22°C)
42.83°F
(6.02°C)
2.17°F
(1.20°C)
120th Coolest
Coolest since:
1898
9th Warmest
Warmest since:
2021
Ties: 1931
Sep–Dec 2017
4-Month
50.32°F
(10.18°C)
48.34°F
(9.08°C)
1.98°F
(1.10°C)
118th Coolest
Coolest since:
1976
11th Warmest
Warmest since:
2021
Aug–Dec 2017
5-Month
54.66°F
(12.59°C)
53.09°F
(11.72°C)
1.57°F
(0.87°C)
113th Coolest
Coolest since:
1976
16th Warmest
Warmest since:
2021
Jul–Dec 2017
6-Month
58.16°F
(14.53°C)
56.50°F
(13.61°C)
1.66°F
(0.92°C)
115th Coolest
Coolest since:
1976
14th Warmest
Warmest since:
2021
Ties: 1933, 2005
Jun–Dec 2017
7-Month
59.91°F
(15.51°C)
58.22°F
(14.57°C)
1.69°F
(0.94°C)
117th Coolest
Coolest since:
1976
12th Warmest
Warmest since:
2021
May–Dec 2017
8-Month
59.99°F
(15.55°C)
58.47°F
(14.71°C)
1.52°F
(0.84°C)
113th Coolest
Coolest since:
1976
16th Warmest
Warmest since:
2021
Apr–Dec 2017
9-Month
59.30°F
(15.17°C)
57.64°F
(14.24°C)
1.66°F
(0.93°C)
119th Coolest
Coolest since:
1917
10th Warmest
Warmest since:
2021
Mar–Dec 2017
10-Month
57.99°F
(14.44°C)
56.03°F
(13.35°C)
1.96°F
(1.09°C)
122nd Coolest
Coolest since:
1917
7th Warmest
Warmest since:
2012
Feb–Dec 2017
11-Month
56.46°F
(13.59°C)
54.01°F
(12.23°C)
2.45°F
(1.36°C)
126th Coolest
Coolest since:
1917
3rd Warmest
Warmest since:
2012
Jan–Dec 2017
12-Month
54.55°F
(12.53°C)
52.02°F
(11.12°C)
2.53°F
(1.41°C)
126th Coolest
Coolest since:
1917
3rd Warmest
Warmest since:
2012
Jul 2016–Dec 2017
18-Month
56.06°F
(13.37°C)
53.52°F
(11.96°C)
2.54°F
(1.41°C)
125th Coolest
Coolest since:
1917
3rd Warmest
Warmest since:
2012, 2016
Jan 2016–Dec 2017
24-Month
54.73°F
(12.63°C)
52.01°F
(11.12°C)
2.72°F
(1.51°C)
127th Coolest
Coolest since:
1917
1st Warmest
Warmest to Date
2017
Jan 2015–Dec 2017
36-Month
54.62°F
(12.57°C)
52.00°F
(11.11°C)
2.62°F
(1.46°C)
126th Coolest
Coolest since:
1917
1st Warmest
Warmest to Date
2017
Jan 2014–Dec 2017
48-Month
54.10°F
(12.28°C)
51.99°F
(11.11°C)
2.11°F
(1.17°C)
124th Coolest
Coolest since:
1917
2nd Warmest
Warmest to Date
2018
Jan 2013–Dec 2017
60-Month
53.77°F
(12.09°C)
51.99°F
(11.11°C)
1.78°F
(0.98°C)
119th Coolest
Coolest since:
1920
6th Warmest
Warmest since:
2019, 2020

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