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.

Minimum Temperature Rankings, December 2017

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 2017
1-Month
23.74°F
(-4.59°C)
22.60°F
(-5.22°C)
1.14°F
(0.63°C)
75th Coolest
Coolest since:
1909
53rd Warmest
Warmest since:
2015
Nov–Dec 2017
2-Month
28.80°F
(-1.78°C)
26.63°F
(-2.98°C)
2.17°F
(1.20°C)
108th Coolest
Coolest since:
1976
20th Warmest
Warmest since:
2015
Oct–Dec 2017
3-Month
33.51°F
(0.84°C)
31.56°F
(-0.24°C)
1.95°F
(1.08°C)
114th Coolest
Coolest since:
1976
14th Warmest
Warmest since:
2015
Ties: 2003
Sep–Dec 2017
4-Month
38.58°F
(3.66°C)
36.65°F
(2.58°C)
1.93°F
(1.08°C)
117th Coolest
Coolest since:
1976
11th Warmest
Warmest since:
2015
Aug–Dec 2017
5-Month
42.81°F
(6.01°C)
41.13°F
(5.07°C)
1.68°F
(0.94°C)
115th Coolest
Coolest since:
1976
13th Warmest
Warmest since:
2015
Jul–Dec 2017
6-Month
46.15°F
(7.86°C)
44.36°F
(6.87°C)
1.79°F
(0.99°C)
117th Coolest
Coolest since:
1976
11th Warmest
Warmest since:
2021
Jun–Dec 2017
7-Month
47.77°F
(8.76°C)
45.98°F
(7.77°C)
1.79°F
(0.99°C)
118th Coolest
Coolest since:
1976
10th Warmest
Warmest since:
2021
May–Dec 2017
8-Month
47.78°F
(8.77°C)
46.16°F
(7.87°C)
1.62°F
(0.90°C)
118th Coolest
Coolest since:
1976
10th Warmest
Warmest since:
2015
Apr–Dec 2017
9-Month
47.10°F
(8.39°C)
45.32°F
(7.40°C)
1.78°F
(0.99°C)
120th Coolest
Coolest since:
1917
8th Warmest
Warmest since:
2015
Mar–Dec 2017
10-Month
45.84°F
(7.69°C)
43.79°F
(6.55°C)
2.05°F
(1.14°C)
122nd Coolest
Coolest since:
1917
6th Warmest
Warmest since:
2015
Feb–Dec 2017
11-Month
44.42°F
(6.90°C)
41.88°F
(5.49°C)
2.54°F
(1.41°C)
124th Coolest
Coolest since:
1917
4th Warmest
Warmest since:
2016
Jan–Dec 2017
12-Month
42.74°F
(5.97°C)
40.03°F
(4.46°C)
2.71°F
(1.51°C)
124th Coolest
Coolest since:
1917
4th Warmest
Warmest since:
2016
Jul 2016–Dec 2017
18-Month
44.26°F
(6.81°C)
41.48°F
(5.27°C)
2.78°F
(1.54°C)
125th Coolest
Coolest since:
1917
2nd Warmest
Warmest since:
2016
Jan 2016–Dec 2017
24-Month
42.94°F
(6.08°C)
40.04°F
(4.47°C)
2.90°F
(1.61°C)
126th Coolest
Coolest since:
1917
1st Warmest
Warmest to Date
2017
Jan 2015–Dec 2017
36-Month
42.86°F
(6.03°C)
40.02°F
(4.46°C)
2.84°F
(1.57°C)
125th Coolest
Coolest since:
1918
1st Warmest
Warmest to Date
2017
Jan 2014–Dec 2017
48-Month
42.33°F
(5.74°C)
40.01°F
(4.45°C)
2.32°F
(1.29°C)
123rd Coolest
Coolest since:
1919
2nd Warmest
Warmest to Date
2018
Jan 2013–Dec 2017
60-Month
42.00°F
(5.56°C)
40.00°F
(4.44°C)
2.00°F
(1.12°C)
118th Coolest
Coolest since:
1920
6th Warmest
Warmest since:
2019

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