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 1898

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
December 1898
1-Month
18.41°F
(-7.55°C)
22.60°F
(-5.22°C)
-4.19°F
(-2.33°C)
12th Coolest
Coolest since:
1909
116th Warmest
Warmest since:
2015
Nov–Dec 1898
2-Month
22.85°F
(-5.08°C)
26.64°F
(-2.98°C)
-3.79°F
(-2.10°C)
2nd Coolest
Coolest since:
1976
126th Warmest
Warmest since:
2015
Oct–Dec 1898
3-Month
28.41°F
(-1.99°C)
31.56°F
(-0.24°C)
-3.15°F
(-1.75°C)
2nd Coolest
Coolest since:
1976
126th Warmest
Warmest since:
2015
Ties: 1916
Sep–Dec 1898
4-Month
34.37°F
(1.32°C)
36.65°F
(2.58°C)
-2.28°F
(-1.26°C)
4th Coolest
Coolest since:
1976
124th Warmest
Warmest since:
2015
Aug–Dec 1898
5-Month
39.49°F
(4.16°C)
41.13°F
(5.07°C)
-1.64°F
(-0.91°C)
7th Coolest
Coolest since:
1976
121st Warmest
Warmest since:
2015
Jul–Dec 1898
6-Month
42.96°F
(6.09°C)
44.36°F
(6.87°C)
-1.40°F
(-0.78°C)
7th Coolest
Coolest since:
1976
121st Warmest
Warmest since:
2021
Jun–Dec 1898
7-Month
44.92°F
(7.18°C)
45.97°F
(7.76°C)
-1.05°F
(-0.58°C)
8th Coolest
Coolest since:
1976
120th Warmest
Warmest since:
2021
May–Dec 1898
8-Month
45.28°F
(7.38°C)
46.16°F
(7.87°C)
-0.88°F
(-0.49°C)
10th Coolest
Coolest since:
1976
118th Warmest
Warmest since:
2015
Apr–Dec 1898
9-Month
44.48°F
(6.93°C)
45.32°F
(7.40°C)
-0.84°F
(-0.47°C)
13th Coolest
Coolest since:
1917
115th Warmest
Warmest since:
2015
Mar–Dec 1898
10-Month
43.00°F
(6.11°C)
43.78°F
(6.54°C)
-0.78°F
(-0.43°C)
12th Coolest
Coolest since:
1917
116th Warmest
Warmest since:
2015
Feb–Dec 1898
11-Month
41.27°F
(5.15°C)
41.88°F
(5.49°C)
-0.61°F
(-0.34°C)
18th Coolest
Coolest since:
1917
110th Warmest
Warmest since:
2016
Ties: 1967
Jan–Dec 1898
12-Month
39.55°F
(4.19°C)
40.04°F
(4.47°C)
-0.49°F
(-0.28°C)
25th Coolest
Coolest since:
1917
103rd Warmest
Warmest since:
2016
Ties: 1985
Jul 1897–Dec 1898
18-Month
41.04°F
(5.02°C)
41.48°F
(5.27°C)
-0.44°F
(-0.25°C)
21st Coolest
Coolest since:
1917
106th Warmest
Warmest since:
2016
Jan 1897–Dec 1898
24-Month
39.63°F
(4.24°C)
40.04°F
(4.47°C)
-0.41°F
(-0.23°C)
27th Coolest
Coolest since:
1917
100th Warmest
Warmest since:
2017
Jan 1896–Dec 1898
36-Month
39.83°F
(4.35°C)
40.02°F
(4.46°C)
-0.19°F
(-0.11°C)
47th Coolest
Coolest since:
1918
79th Warmest
Warmest to Date
2017
Jan 1895–Dec 1898
48-Month
39.40°F
(4.11°C)
40.02°F
(4.46°C)
-0.62°F
(-0.35°C)
9th Coolest
Coolest since:
1919
116th Warmest
Warmest to Date
2018

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