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 1949

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
December 1949
1-Month		22.42°F
(-5.32°C)		22.60°F
(-5.22°C)		-0.18°F
(-0.10°C)		48th Coolest
Coolest since:
1909
81st Warmest
Warmest since:
2015
Nov–Dec 1949
2-Month		27.26°F
(-2.63°C)		26.64°F
(-2.98°C)		0.62°F
(0.35°C)		69th Coolest
Coolest since:
1976
60th Warmest
Warmest since:
2015
Oct–Dec 1949
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: 1928
Sep–Dec 1949
4-Month		36.74°F
(2.63°C)		36.65°F
(2.58°C)		0.09°F
(0.05°C)		59th Coolest
Coolest since:
1976
70th Warmest
Warmest since:
2015
Aug–Dec 1949
5-Month		41.10°F
(5.06°C)		41.13°F
(5.07°C)		-0.03°F
(-0.01°C)		51st Coolest
Coolest since:
1976
78th Warmest
Warmest since:
2015
Ties: 1975
Jul–Dec 1949
6-Month		44.47°F
(6.93°C)		44.36°F
(6.87°C)		0.11°F
(0.06°C)		56th Coolest
Coolest since:
1976
73rd Warmest
Warmest since:
2021
Ties: 1970
Jun–Dec 1949
7-Month		46.19°F
(7.88°C)		45.97°F
(7.76°C)		0.22°F
(0.12°C)		64th Coolest
Coolest since:
1976
65th Warmest
Warmest since:
2021
May–Dec 1949
8-Month		46.53°F
(8.07°C)		46.16°F
(7.87°C)		0.37°F
(0.20°C)		76th Coolest
Coolest since:
1976
53rd Warmest
Warmest since:
2015
Ties: 1947, 1962, 1963, 1990
Apr–Dec 1949
9-Month		45.69°F
(7.61°C)		45.32°F
(7.40°C)		0.37°F
(0.21°C)		78th Coolest
Coolest since:
1917
51st Warmest
Warmest since:
2015
Ties: 1896
Mar–Dec 1949
10-Month		44.10°F
(6.72°C)		43.79°F
(6.55°C)		0.31°F
(0.17°C)		75th Coolest
Coolest since:
1917
54th Warmest
Warmest since:
2015
Ties: 1953
Feb–Dec 1949
11-Month		41.99°F
(5.55°C)		41.88°F
(5.49°C)		0.11°F
(0.06°C)		66th Coolest
Coolest since:
1917
63rd Warmest
Warmest since:
2016
Ties: 2008
Jan–Dec 1949
12-Month		39.84°F
(4.36°C)		40.04°F
(4.47°C)		-0.20°F
(-0.11°C)		50th Coolest
Coolest since:
1917
79th Warmest
Warmest since:
2016
Ties: 1915, 1962, 1982
Jul 1948–Dec 1949
18-Month		41.21°F
(5.12°C)		41.48°F
(5.27°C)		-0.27°F
(-0.15°C)		41st Coolest
Coolest since:
1917
87th Warmest
Warmest since:
2016
Jan 1948–Dec 1949
24-Month		39.61°F
(4.23°C)		40.03°F
(4.46°C)		-0.42°F
(-0.23°C)		23rd Coolest
Coolest since:
1917
105th Warmest
Warmest since:
2017
Ties: 1920
Jan 1947–Dec 1949
36-Month		39.72°F
(4.29°C)		40.02°F
(4.46°C)		-0.30°F
(-0.17°C)		34th Coolest
Coolest since:
1918
93rd Warmest
Warmest since:
2017
Ties: 1945, 1977
Jan 1946–Dec 1949
48-Month		39.98°F
(4.43°C)		40.01°F
(4.45°C)		-0.03°F
(-0.02°C)		58th Coolest
Coolest since:
1919
68th Warmest
Warmest since:
2018
Ties: 1958
Jan 1945–Dec 1949
60-Month		39.94°F
(4.41°C)		40.00°F
(4.44°C)		-0.06°F
(-0.03°C)		51st Coolest
Coolest since:
1920
74th Warmest
Warmest since:
2019
Ties: 1946, 1948, 1982

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