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 1900

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
December 1900
1-Month
24.30°F
(-4.28°C)
22.60°F
(-5.22°C)
1.70°F
(0.94°C)
85th Coolest
Coolest since:
1909
43rd Warmest
Warmest since:
2015
Nov–Dec 1900
2-Month
27.56°F
(-2.47°C)
26.64°F
(-2.98°C)
0.92°F
(0.51°C)
77th Coolest
Coolest since:
1976
51st Warmest
Warmest since:
2015
Ties: 1940
Oct–Dec 1900
3-Month
33.30°F
(0.72°C)
31.56°F
(-0.24°C)
1.74°F
(0.96°C)
109th Coolest
Coolest since:
1976
19th Warmest
Warmest to Date
2015
Ties: 2007
Sep–Dec 1900
4-Month
38.29°F
(3.49°C)
36.64°F
(2.58°C)
1.65°F
(0.91°C)
113th Coolest
Coolest since:
1976
15th Warmest
Warmest to Date
2015
Aug–Dec 1900
5-Month
42.61°F
(5.89°C)
41.13°F
(5.07°C)
1.48°F
(0.82°C)
109th Coolest
Coolest since:
1976
19th Warmest
Warmest to Date
2015
Jul–Dec 1900
6-Month
45.53°F
(7.52°C)
44.37°F
(6.87°C)
1.16°F
(0.65°C)
104th Coolest
Coolest since:
1976
24th Warmest
Warmest to Date
2021
Jun–Dec 1900
7-Month
47.18°F
(8.43°C)
45.98°F
(7.77°C)
1.20°F
(0.66°C)
106th Coolest
Coolest since:
1976
22nd Warmest
Warmest to Date
2021
Ties: 1934, 2004
May–Dec 1900
8-Month
47.35°F
(8.53°C)
46.15°F
(7.86°C)
1.20°F
(0.67°C)
105th Coolest
Coolest since:
1976
23rd Warmest
Warmest to Date
2015
Apr–Dec 1900
9-Month
46.52°F
(8.07°C)
45.32°F
(7.40°C)
1.20°F
(0.67°C)
103rd Coolest
Coolest since:
1917
25th Warmest
Warmest to Date
2015
Mar–Dec 1900
10-Month
44.82°F
(7.12°C)
43.78°F
(6.54°C)
1.04°F
(0.58°C)
102nd Coolest
Coolest since:
1917
26th Warmest
Warmest to Date
2015
Feb–Dec 1900
11-Month
42.51°F
(5.84°C)
41.88°F
(5.49°C)
0.63°F
(0.35°C)
88th Coolest
Coolest since:
1917
40th Warmest
Warmest to Date
2016
Jan–Dec 1900
12-Month
40.96°F
(4.98°C)
40.04°F
(4.47°C)
0.92°F
(0.51°C)
96th Coolest
Coolest since:
1917
32nd Warmest
Warmest to Date
2016
Ties: 1953, 1995
Jul 1899–Dec 1900
18-Month
42.13°F
(5.63°C)
41.48°F
(5.27°C)
0.65°F
(0.36°C)
90th Coolest
Coolest since:
1917
37th Warmest
Warmest to Date
2016
Jan 1899–Dec 1900
24-Month
40.02°F
(4.46°C)
40.03°F
(4.46°C)
-0.01°F
(0.00°C)
61st Coolest
Coolest since:
1917
66th Warmest
Warmest to Date
2017
Jan 1898–Dec 1900
36-Month
39.86°F
(4.37°C)
40.02°F
(4.46°C)
-0.16°F
(-0.09°C)
49th Coolest
Coolest since:
1918
77th Warmest
Warmest to Date
2017
Jan 1897–Dec 1900
48-Month
39.82°F
(4.34°C)
40.01°F
(4.45°C)
-0.19°F
(-0.11°C)
42nd Coolest
Coolest since:
1919
83rd Warmest
Warmest to Date
2018
Ties: 1903
Jan 1896–Dec 1900
60-Month
39.91°F
(4.39°C)
40.01°F
(4.45°C)
-0.10°F
(-0.06°C)
48th Coolest
Coolest since:
1920
76th Warmest
Warmest to Date
2019
Ties: 1932

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