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, May 1957

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
May 1957
1-Month		48.09°F
(8.94°C)		47.44°F
(8.58°C)		0.65°F
(0.36°C)		82nd Coolest
Coolest since:
1917
47th Warmest
Warmest since:
2018
Apr–May 1957
2-Month		43.69°F
(6.49°C)		43.03°F
(6.13°C)		0.66°F
(0.36°C)		84th Coolest
Coolest since:
1907
45th Warmest
Warmest since:
2012
Ties: 1914, 1978
Mar–May 1957
3-Month		39.31°F
(4.06°C)		38.68°F
(3.71°C)		0.63°F
(0.35°C)		84th Coolest
Coolest since:
1917
45th Warmest
Warmest since:
2012
Ties: 1941
Feb–May 1957
4-Month		36.39°F
(2.44°C)		34.72°F
(1.51°C)		1.67°F
(0.93°C)		111th Coolest
Coolest since:
1917
18th Warmest
Warmest since:
2012
Jan–May 1957
5-Month		32.50°F
(0.28°C)		31.72°F
(-0.16°C)		0.78°F
(0.44°C)		88th Coolest
Coolest since:
1917
41st Warmest
Warmest since:
2012
Dec 1956–May 1957
6-Month		31.28°F
(-0.40°C)		30.21°F
(-0.99°C)		1.07°F
(0.59°C)		95th Coolest
Coolest since:
1917
33rd Warmest
Warmest since:
2012
Nov 1956–May 1957
7-Month		30.86°F
(-0.63°C)		30.28°F
(-0.96°C)		0.58°F
(0.33°C)		83rd Coolest
Coolest since:
1917
45th Warmest
Warmest since:
2012
Oct 1956–May 1957
8-Month		32.37°F
(0.21°C)		31.68°F
(-0.18°C)		0.69°F
(0.39°C)		90th Coolest
Coolest since:
1917
38th Warmest
Warmest since:
2016, 2017
Ties: 1900
Sep 1956–May 1957
9-Month		34.35°F
(1.31°C)		33.92°F
(1.07°C)		0.43°F
(0.24°C)		83rd Coolest
Coolest since:
1917
45th Warmest
Warmest since:
2016
Ties: 1972
Aug 1956–May 1957
10-Month		36.73°F
(2.63°C)		36.44°F
(2.47°C)		0.29°F
(0.16°C)		73rd Coolest
Coolest since:
1917
55th Warmest
Warmest since:
2017
Jul 1956–May 1957
11-Month		38.84°F
(3.80°C)		38.63°F
(3.68°C)		0.21°F
(0.12°C)		70th Coolest
Coolest since:
1917
58th Warmest
Warmest since:
2017
Jun 1956–May 1957
12-Month		40.33°F
(4.63°C)		40.04°F
(4.47°C)		0.29°F
(0.16°C)		78th Coolest
Coolest since:
1917
50th Warmest
Warmest since:
2017
Ties: 1900, 1972, 1985
Dec 1955–May 1957
18-Month		36.73°F
(2.63°C)		36.76°F
(2.64°C)		-0.03°F
(-0.01°C)		54th Coolest
Coolest since:
1918
73rd Warmest
Warmest since:
2017
Ties: 1897
Jun 1955–May 1957
24-Month		39.88°F
(4.38°C)		40.03°F
(4.46°C)		-0.15°F
(-0.08°C)		49th Coolest
Coolest since:
1918
78th Warmest
Warmest since:
2017
Ties: 1976
Jun 1954–May 1957
36-Month		39.98°F
(4.43°C)		40.02°F
(4.46°C)		-0.04°F
(-0.03°C)		54th Coolest
Coolest since:
1918
72nd Warmest
Warmest since:
2017
Ties: 1908
Jun 1953–May 1957
48-Month		40.17°F
(4.54°C)		40.01°F
(4.45°C)		0.16°F
(0.09°C)		70th Coolest
Coolest since:
1918
55th Warmest
Warmest since:
2018
Ties: 1974
Jun 1952–May 1957
60-Month		40.21°F
(4.56°C)		40.00°F
(4.44°C)		0.21°F
(0.12°C)		74th Coolest
Coolest since:
1920
50th Warmest
Warmest since:
2020

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