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

View Period (Months):
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  • Record Coolest
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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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