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.

Maximum Temperature Rankings, December 1921

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
December 1921
1-Month		45.36°F
(7.42°C)		42.76°F
(5.98°C)		2.60°F
(1.44°C)		101st Coolest
Coolest since:
1983
28th Warmest
Warmest since:
2021
Nov–Dec 1921
2-Month		49.80°F
(9.89°C)		47.74°F
(8.74°C)		2.06°F
(1.15°C)		108th Coolest
Coolest since:
2000
21st Warmest
Warmest to Date
1999
Oct–Dec 1921
3-Month		56.31°F
(13.51°C)		54.09°F
(12.27°C)		2.22°F
(1.24°C)		116th Coolest
Coolest since:
1972
13th Warmest
Warmest to Date
1999
Sep–Dec 1921
4-Month		62.08°F
(16.71°C)		60.02°F
(15.57°C)		2.06°F
(1.14°C)		116th Coolest
Coolest since:
1972
13th Warmest
Warmest to Date
2021
Aug–Dec 1921
5-Month		66.67°F
(19.26°C)		65.04°F
(18.36°C)		1.63°F
(0.90°C)		111th Coolest
Coolest since:
1972
18th Warmest
Warmest to Date
2021
Jul–Dec 1921
6-Month		70.16°F
(21.20°C)		68.65°F
(20.36°C)		1.51°F
(0.84°C)		109th Coolest
Coolest since:
1972
20th Warmest
Warmest to Date
2021
Jun–Dec 1921
7-Month		71.99°F
(22.22°C)		70.46°F
(21.37°C)		1.53°F
(0.85°C)		109th Coolest
Coolest since:
1972
20th Warmest
Warmest to Date
2021
May–Dec 1921
8-Month		72.06°F
(22.26°C)		70.77°F
(21.54°C)		1.29°F
(0.72°C)		107th Coolest
Coolest since:
1972
22nd Warmest
Warmest to Date
2021
Apr–Dec 1921
9-Month		71.13°F
(21.74°C)		69.96°F
(21.09°C)		1.17°F
(0.65°C)		105th Coolest
Coolest since:
1972
24th Warmest
Warmest to Date
2021
Mar–Dec 1921
10-Month		69.88°F
(21.04°C)		68.27°F
(20.15°C)		1.61°F
(0.89°C)		115th Coolest
Coolest since:
1912
14th Warmest
Warmest to Date
2012
Feb–Dec 1921
11-Month		67.91°F
(19.95°C)		66.14°F
(18.97°C)		1.77°F
(0.98°C)		118th Coolest
Coolest since:
1912
11th Warmest
Warmest to Date
2012
Jan–Dec 1921
12-Month		65.96°F
(18.87°C)		64.00°F
(17.78°C)		1.96°F
(1.09°C)		119th Coolest
Coolest since:
1912
10th Warmest
Warmest to Date
2012
Jul 1920–Dec 1921
18-Month		66.59°F
(19.22°C)		65.55°F
(18.64°C)		1.04°F
(0.58°C)		107th Coolest
Coolest since:
1912
21st Warmest
Warmest to Date
2012
Jan 1920–Dec 1921
24-Month		64.33°F
(17.96°C)		64.00°F
(17.78°C)		0.33°F
(0.18°C)		81st Coolest
Coolest since:
1913
47th Warmest
Warmest since:
2017
Ties: 1938
Jan 1919–Dec 1921
36-Month		63.99°F
(17.77°C)		63.98°F
(17.77°C)		0.01°F
(0.00°C)		62nd Coolest
Coolest since:
1905
65th Warmest
Warmest since:
2017
Jan 1918–Dec 1921
48-Month		63.97°F
(17.76°C)		63.97°F
(17.76°C)		0.00°F
(0.00°C)		55th Coolest
Coolest since:
1906
71st Warmest
Warmest since:
2018
Ties: 1963
Jan 1917–Dec 1921
60-Month		63.68°F
(17.60°C)		63.96°F
(17.76°C)		-0.28°F
(-0.16°C)		33rd Coolest
Coolest since:
1907
92nd Warmest
Warmest since:
2016
Ties: 1912

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