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 1990

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
December 1990
1-Month		30.83°F
(-0.65°C)		32.68°F
(0.38°C)		-1.85°F
(-1.03°C)		26th Coolest
Coolest since:
1983
103rd Warmest
Warmest since:
2021
Nov–Dec 1990
2-Month		37.88°F
(3.27°C)		37.19°F
(2.88°C)		0.69°F
(0.39°C)		74th Coolest
Coolest since:
2000
55th Warmest
Warmest since:
2021
Oct–Dec 1990
3-Month		43.24°F
(6.24°C)		42.83°F
(6.02°C)		0.41°F
(0.22°C)		68th Coolest
Coolest since:
1898
61st Warmest
Warmest since:
2021
Sep–Dec 1990
4-Month		49.27°F
(9.59°C)		48.34°F
(9.08°C)		0.93°F
(0.51°C)		93rd Coolest
Coolest since:
1976
36th Warmest
Warmest since:
2021
Aug–Dec 1990
5-Month		53.87°F
(12.15°C)		53.09°F
(11.72°C)		0.78°F
(0.43°C)		92nd Coolest
Coolest since:
1976
37th Warmest
Warmest since:
2021
Jul–Dec 1990
6-Month		57.10°F
(13.94°C)		56.51°F
(13.62°C)		0.59°F
(0.32°C)		88th Coolest
Coolest since:
1976
41st Warmest
Warmest since:
2021
Ties: 1949
Jun–Dec 1990
7-Month		58.98°F
(14.99°C)		58.22°F
(14.57°C)		0.76°F
(0.42°C)		93rd Coolest
Coolest since:
1976
36th Warmest
Warmest since:
2021
May–Dec 1990
8-Month		58.96°F
(14.98°C)		58.47°F
(14.71°C)		0.49°F
(0.27°C)		84th Coolest
Coolest since:
1976
45th Warmest
Warmest since:
2021
Ties: 1958
Apr–Dec 1990
9-Month		58.25°F
(14.58°C)		57.64°F
(14.24°C)		0.61°F
(0.34°C)		86th Coolest
Coolest since:
1917
43rd Warmest
Warmest since:
2021
Mar–Dec 1990
10-Month		56.90°F
(13.83°C)		56.03°F
(13.35°C)		0.87°F
(0.48°C)		96th Coolest
Coolest since:
1917
33rd Warmest
Warmest since:
2012
Feb–Dec 1990
11-Month		55.06°F
(12.81°C)		54.01°F
(12.23°C)		1.05°F
(0.58°C)		103rd Coolest
Coolest since:
1917
26th Warmest
Warmest since:
2012
Ties: 2000
Jan–Dec 1990
12-Month		53.51°F
(11.95°C)		52.02°F
(11.12°C)		1.49°F
(0.83°C)		112th Coolest
Coolest since:
1917
17th Warmest
Warmest since:
2012
Jul 1989–Dec 1990
18-Month		54.27°F
(12.37°C)		53.52°F
(11.96°C)		0.75°F
(0.41°C)		95th Coolest
Coolest since:
1917
33rd Warmest
Warmest since:
2012, 2016
Jan 1989–Dec 1990
24-Month		52.67°F
(11.48°C)		52.02°F
(11.12°C)		0.65°F
(0.36°C)		91st Coolest
Coolest since:
1917
37th Warmest
Warmest since:
2017
Jan 1988–Dec 1990
36-Month		52.66°F
(11.48°C)		52.01°F
(11.12°C)		0.65°F
(0.36°C)		92nd Coolest
Coolest since:
1917
35th Warmest
Warmest since:
2017
Ties: 1939
Jan 1987–Dec 1990
48-Month		52.83°F
(11.57°C)		52.00°F
(11.11°C)		0.83°F
(0.46°C)		102nd Coolest
Coolest since:
1917
24th Warmest
Warmest since:
2018
Ties: 2010
Jan 1986–Dec 1990
60-Month		52.93°F
(11.63°C)		51.99°F
(11.11°C)		0.94°F
(0.52°C)		101st Coolest
Coolest since:
1920
24th Warmest
Warmest to Date
2019, 2020

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