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.

Average Temperature Rankings, December 1909

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
December 1909
1-Month
25.61°F
(-3.55°C)
32.68°F
(0.38°C)
-7.07°F
(-3.93°C)
2nd Coolest
Coolest since:
1983
126th Warmest
Warmest since:
2021
Nov–Dec 1909
2-Month
35.32°F
(1.84°C)
37.19°F
(2.88°C)
-1.87°F
(-1.04°C)
16th Coolest
Coolest since:
2000
112th Warmest
Warmest since:
2021
Oct–Dec 1909
3-Month
41.17°F
(5.09°C)
42.83°F
(6.02°C)
-1.66°F
(-0.93°C)
13th Coolest
Coolest since:
1898
115th Warmest
Warmest since:
2021
Ties: 1983
Sep–Dec 1909
4-Month
46.98°F
(8.32°C)
48.34°F
(9.08°C)
-1.36°F
(-0.76°C)
14th Coolest
Coolest since:
1976
114th Warmest
Warmest since:
2021
Aug–Dec 1909
5-Month
52.17°F
(11.21°C)
53.09°F
(11.72°C)
-0.92°F
(-0.51°C)
17th Coolest
Coolest since:
1976
111th Warmest
Warmest since:
2021
Ties: 1992
Jul–Dec 1909
6-Month
55.58°F
(13.10°C)
56.51°F
(13.62°C)
-0.93°F
(-0.52°C)
16th Coolest
Coolest since:
1976
112th Warmest
Warmest since:
2021
Jun–Dec 1909
7-Month
57.49°F
(14.16°C)
58.22°F
(14.57°C)
-0.73°F
(-0.41°C)
17th Coolest
Coolest since:
1976
111th Warmest
Warmest since:
2021
May–Dec 1909
8-Month
57.57°F
(14.21°C)
58.47°F
(14.71°C)
-0.90°F
(-0.50°C)
14th Coolest
Coolest since:
1976
114th Warmest
Warmest since:
2021
Apr–Dec 1909
9-Month
56.61°F
(13.67°C)
57.64°F
(14.24°C)
-1.03°F
(-0.57°C)
8th Coolest
Coolest since:
1917
120th Warmest
Warmest since:
2021
Mar–Dec 1909
10-Month
54.99°F
(12.77°C)
56.03°F
(13.35°C)
-1.04°F
(-0.58°C)
8th Coolest
Coolest since:
1917
120th Warmest
Warmest since:
2012
Feb–Dec 1909
11-Month
53.17°F
(11.76°C)
54.01°F
(12.23°C)
-0.84°F
(-0.47°C)
12th Coolest
Coolest since:
1917
116th Warmest
Warmest since:
2012
Ties: 1905
Jan–Dec 1909
12-Month
51.43°F
(10.79°C)
52.02°F
(11.12°C)
-0.59°F
(-0.33°C)
21st Coolest
Coolest since:
1917
107th Warmest
Warmest since:
2012
Ties: 1898
Jul 1908–Dec 1909
18-Month
53.01°F
(11.67°C)
53.52°F
(11.96°C)
-0.51°F
(-0.29°C)
20th Coolest
Coolest since:
1917
107th Warmest
Warmest since:
2012, 2016
Jan 1908–Dec 1909
24-Month
51.76°F
(10.98°C)
52.02°F
(11.12°C)
-0.26°F
(-0.14°C)
40th Coolest
Coolest since:
1917
87th Warmest
Warmest since:
2017
Ties: 1948
Jan 1907–Dec 1909
36-Month
51.66°F
(10.92°C)
52.00°F
(11.11°C)
-0.34°F
(-0.19°C)
32nd Coolest
Coolest since:
1917
94th Warmest
Warmest since:
2017
Ties: 1898
Jan 1906–Dec 1909
48-Month
51.68°F
(10.93°C)
52.00°F
(11.11°C)
-0.32°F
(-0.18°C)
28th Coolest
Coolest since:
1917
97th Warmest
Warmest since:
2018
Jan 1905–Dec 1909
60-Month
51.54°F
(10.86°C)
51.98°F
(11.10°C)
-0.44°F
(-0.24°C)
15th Coolest
Coolest since:
1920
109th Warmest
Warmest since:
2019, 2020
Ties: 1970

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