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 1928

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
December 1928
1-Month		22.51°F
(-5.27°C)		22.60°F
(-5.22°C)		-0.09°F
(-0.05°C)		50th Coolest
Coolest since:
1909
79th Warmest
Warmest since:
2015
Nov–Dec 1928
2-Month		26.93°F
(-2.82°C)		26.64°F
(-2.98°C)		0.29°F
(0.16°C)		62nd Coolest
Coolest since:
1976
67th Warmest
Warmest since:
2015
Ties: 1970, 1996
Oct–Dec 1928
3-Month		32.20°F
(0.11°C)		31.56°F
(-0.24°C)		0.64°F
(0.35°C)		77th Coolest
Coolest since:
1976
52nd Warmest
Warmest since:
2015
Ties: 1949
Sep–Dec 1928
4-Month		36.53°F
(2.52°C)		36.65°F
(2.58°C)		-0.12°F
(-0.06°C)		44th Coolest
Coolest since:
1976
85th Warmest
Warmest since:
2015
Aug–Dec 1928
5-Month		40.98°F
(4.99°C)		41.13°F
(5.07°C)		-0.15°F
(-0.08°C)		49th Coolest
Coolest since:
1976
80th Warmest
Warmest since:
2015
Jul–Dec 1928
6-Month		44.26°F
(6.81°C)		44.36°F
(6.87°C)		-0.10°F
(-0.06°C)		50th Coolest
Coolest since:
1976
79th Warmest
Warmest since:
2021
Jun–Dec 1928
7-Month		45.63°F
(7.57°C)		45.97°F
(7.76°C)		-0.34°F
(-0.19°C)		38th Coolest
Coolest since:
1976
91st Warmest
Warmest since:
2021
Ties: 1897
May–Dec 1928
8-Month		45.92°F
(7.73°C)		46.16°F
(7.87°C)		-0.24°F
(-0.14°C)		45th Coolest
Coolest since:
1976
84th Warmest
Warmest since:
2015
Apr–Dec 1928
9-Month		44.77°F
(7.09°C)		45.32°F
(7.40°C)		-0.55°F
(-0.31°C)		21st Coolest
Coolest since:
1917
108th Warmest
Warmest since:
2015
Mar–Dec 1928
10-Month		43.44°F
(6.36°C)		43.79°F
(6.55°C)		-0.35°F
(-0.19°C)		31st Coolest
Coolest since:
1917
98th Warmest
Warmest since:
2015
Ties: 1961
Feb–Dec 1928
11-Month		41.61°F
(5.34°C)		41.88°F
(5.49°C)		-0.27°F
(-0.15°C)		43rd Coolest
Coolest since:
1917
86th Warmest
Warmest since:
2016
Jan–Dec 1928
12-Month		39.90°F
(4.39°C)		40.04°F
(4.47°C)		-0.14°F
(-0.08°C)		58th Coolest
Coolest since:
1917
71st Warmest
Warmest since:
2016
Ties: 1910
Jul 1927–Dec 1928
18-Month		41.19°F
(5.11°C)		41.48°F
(5.27°C)		-0.29°F
(-0.16°C)		34th Coolest
Coolest since:
1917
94th Warmest
Warmest since:
2016
Ties: 1964, 1966, 1975, 1993
Jan 1927–Dec 1928
24-Month		40.14°F
(4.52°C)		40.03°F
(4.46°C)		0.11°F
(0.06°C)		65th Coolest
Coolest since:
1917
63rd Warmest
Warmest since:
2017
Ties: 1955
Jan 1926–Dec 1928
36-Month		40.10°F
(4.50°C)		40.02°F
(4.46°C)		0.08°F
(0.04°C)		60th Coolest
Coolest since:
1918
67th Warmest
Warmest since:
2017
Jan 1925–Dec 1928
48-Month		40.18°F
(4.54°C)		40.01°F
(4.45°C)		0.17°F
(0.09°C)		73rd Coolest
Coolest since:
1919
53rd Warmest
Warmest since:
2018
Ties: 1954
Jan 1924–Dec 1928
60-Month		39.80°F
(4.33°C)		40.00°F
(4.44°C)		-0.20°F
(-0.11°C)		37th Coolest
Coolest since:
1920
88th Warmest
Warmest since:
2019

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