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 1909

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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 1909
1-Month
16.45°F
(-8.64°C)
22.60°F
(-5.22°C)
-6.15°F
(-3.42°C)
1st Coolest
Coolest since:
1909
128th Warmest
Warmest since:
2015
Nov–Dec 1909
2-Month
25.10°F
(-3.83°C)
26.64°F
(-2.98°C)
-1.54°F
(-0.85°C)
19th Coolest
Coolest since:
1976
110th Warmest
Warmest since:
2015
Oct–Dec 1909
3-Month
29.88°F
(-1.18°C)
31.56°F
(-0.24°C)
-1.68°F
(-0.94°C)
13th Coolest
Coolest since:
1976
116th Warmest
Warmest since:
2015
Sep–Dec 1909
4-Month
35.28°F
(1.82°C)
36.65°F
(2.58°C)
-1.37°F
(-0.76°C)
11th Coolest
Coolest since:
1976
118th Warmest
Warmest since:
2015
Ties: 1952
Aug–Dec 1909
5-Month
40.18°F
(4.54°C)
41.13°F
(5.07°C)
-0.95°F
(-0.53°C)
14th Coolest
Coolest since:
1976
115th Warmest
Warmest since:
2015
Jul–Dec 1909
6-Month
43.48°F
(6.38°C)
44.36°F
(6.87°C)
-0.88°F
(-0.49°C)
11th Coolest
Coolest since:
1976
118th Warmest
Warmest since:
2021
Ties: 1911
Jun–Dec 1909
7-Month
45.33°F
(7.41°C)
45.97°F
(7.76°C)
-0.64°F
(-0.35°C)
18th Coolest
Coolest since:
1976
111th Warmest
Warmest since:
2021
May–Dec 1909
8-Month
45.32°F
(7.40°C)
46.16°F
(7.87°C)
-0.84°F
(-0.47°C)
12th Coolest
Coolest since:
1976
117th Warmest
Warmest since:
2015
Ties: 1967
Apr–Dec 1909
9-Month
44.33°F
(6.85°C)
45.32°F
(7.40°C)
-0.99°F
(-0.55°C)
9th Coolest
Coolest since:
1917
120th Warmest
Warmest since:
2015
Mar–Dec 1909
10-Month
42.83°F
(6.02°C)
43.78°F
(6.54°C)
-0.95°F
(-0.52°C)
10th Coolest
Coolest since:
1917
119th Warmest
Warmest since:
2015
Feb–Dec 1909
11-Month
41.11°F
(5.06°C)
41.88°F
(5.49°C)
-0.77°F
(-0.43°C)
13th Coolest
Coolest since:
1917
116th Warmest
Warmest since:
2016
Jan–Dec 1909
12-Month
39.54°F
(4.19°C)
40.04°F
(4.47°C)
-0.50°F
(-0.28°C)
23rd Coolest
Coolest since:
1917
106th Warmest
Warmest since:
2016
Ties: 1943
Jul 1908–Dec 1909
18-Month
40.95°F
(4.97°C)
41.48°F
(5.27°C)
-0.53°F
(-0.30°C)
18th Coolest
Coolest since:
1917
110th Warmest
Warmest since:
2016
Ties: 1913
Jan 1908–Dec 1909
24-Month
39.75°F
(4.31°C)
40.04°F
(4.47°C)
-0.29°F
(-0.16°C)
41st Coolest
Coolest since:
1917
87th Warmest
Warmest since:
2017
Ties: 1960
Jan 1907–Dec 1909
36-Month
39.73°F
(4.29°C)
40.03°F
(4.46°C)
-0.30°F
(-0.17°C)
38th Coolest
Coolest since:
1918
89th Warmest
Warmest since:
2017
Ties: 1944, 1962
Jan 1906–Dec 1909
48-Month
39.83°F
(4.35°C)
40.02°F
(4.46°C)
-0.19°F
(-0.11°C)
44th Coolest
Coolest since:
1919
82nd Warmest
Warmest since:
2018
Jan 1905–Dec 1909
60-Month
39.75°F
(4.31°C)
40.00°F
(4.44°C)
-0.25°F
(-0.13°C)
32nd Coolest
Coolest since:
1920
93rd Warmest
Warmest since:
2019

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