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 1897

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
December 1897
1-Month
20.88°F
(-6.18°C)
22.60°F
(-5.22°C)
-1.72°F
(-0.96°C)
26th Coolest
Coolest since:
1909
102nd Warmest
Warmest since:
2015
Nov–Dec 1897
2-Month
25.18°F
(-3.79°C)
26.64°F
(-2.98°C)
-1.46°F
(-0.81°C)
21st Coolest
Coolest since:
1976
107th Warmest
Warmest since:
2015
Oct–Dec 1897
3-Month
30.96°F
(-0.58°C)
31.57°F
(-0.24°C)
-0.61°F
(-0.34°C)
30th Coolest
Coolest since:
1976
98th Warmest
Warmest since:
2015
Ties: 1904, 1908, 2013
Sep–Dec 1897
4-Month
36.41°F
(2.45°C)
36.65°F
(2.58°C)
-0.24°F
(-0.13°C)
40th Coolest
Coolest since:
1976
88th Warmest
Warmest to Date
2015
Aug–Dec 1897
5-Month
40.77°F
(4.87°C)
41.13°F
(5.07°C)
-0.36°F
(-0.20°C)
40th Coolest
Coolest since:
1976
88th Warmest
Warmest to Date
2015
Jul–Dec 1897
6-Month
44.02°F
(6.68°C)
44.36°F
(6.87°C)
-0.34°F
(-0.19°C)
41st Coolest
Coolest since:
1976
87th Warmest
Warmest since:
2021
Ties: 1974
Jun–Dec 1897
7-Month
45.63°F
(7.57°C)
45.97°F
(7.76°C)
-0.34°F
(-0.19°C)
38th Coolest
Coolest since:
1976
90th Warmest
Warmest since:
2021
Ties: 1928
May–Dec 1897
8-Month
45.89°F
(7.72°C)
46.15°F
(7.86°C)
-0.26°F
(-0.14°C)
42nd Coolest
Coolest since:
1976
86th Warmest
Warmest since:
2015
Ties: 1966
Apr–Dec 1897
9-Month
45.11°F
(7.28°C)
45.31°F
(7.39°C)
-0.20°F
(-0.11°C)
39th Coolest
Coolest since:
1917
89th Warmest
Warmest since:
2015
Ties: 1943, 1955
Mar–Dec 1897
10-Month
43.43°F
(6.35°C)
43.78°F
(6.54°C)
-0.35°F
(-0.19°C)
30th Coolest
Coolest since:
1917
98th Warmest
Warmest since:
2015
Feb–Dec 1897
11-Month
41.62°F
(5.34°C)
41.88°F
(5.49°C)
-0.26°F
(-0.15°C)
44th Coolest
Coolest since:
1917
84th Warmest
Warmest since:
2016
Jan–Dec 1897
12-Month
39.70°F
(4.28°C)
40.03°F
(4.46°C)
-0.33°F
(-0.18°C)
34th Coolest
Coolest since:
1917
94th Warmest
Warmest since:
2016
Ties: 1932, 1936
Jul 1896–Dec 1897
18-Month
41.15°F
(5.08°C)
41.48°F
(5.27°C)
-0.33°F
(-0.19°C)
29th Coolest
Coolest since:
1917
98th Warmest
Warmest to Date
2016
Ties: 1936
Jan 1896–Dec 1897
24-Month
39.97°F
(4.43°C)
40.03°F
(4.46°C)
-0.06°F
(-0.03°C)
58th Coolest
Coolest since:
1917
69th Warmest
Warmest to Date
2017
Jan 1895–Dec 1897
36-Month
39.35°F
(4.08°C)
40.03°F
(4.46°C)
-0.68°F
(-0.38°C)
7th Coolest
Coolest since:
1918
119th Warmest
Warmest to Date
2017
Ties: 1951, 1952

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