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 1902

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
May 1902
1-Month 		49.57°F
(9.76°C)		 47.44°F
(8.58°C)		 2.13°F
(1.18°C)		 119th Coolest
Coolest since:
 1917
10th Warmest
Warmest since:
 2018
Ties: 1962
Apr–May 1902
2-Month 		43.94°F
(6.63°C)		 43.03°F
(6.13°C)		 0.91°F
(0.50°C)		 95th Coolest
Coolest since:
 1907
34th Warmest
Warmest since:
 2012
Mar–May 1902
3-Month 		39.55°F
(4.19°C)		 38.68°F
(3.71°C)		 0.87°F
(0.48°C)		 94th Coolest
Coolest since:
 1917
35th Warmest
Warmest to Date
 2012
Feb–May 1902
4-Month 		34.93°F
(1.63°C)		 34.72°F
(1.51°C)		 0.21°F
(0.12°C)		 70th Coolest
Coolest since:
 1917
59th Warmest
Warmest since:
 2012
Jan–May 1902
5-Month 		31.78°F
(-0.12°C)		 31.72°F
(-0.16°C)		 0.06°F
(0.04°C)		 61st Coolest
Coolest since:
 1917
68th Warmest
Warmest since:
 2012
Dec 1901–May 1902
6-Month 		29.98°F
(-1.12°C)		 30.21°F
(-0.99°C)		 -0.23°F
(-0.13°C)		 50th Coolest
Coolest since:
 1917
78th Warmest
Warmest since:
 2012
Ties: 1996
Nov 1901–May 1902
7-Month 		29.98°F
(-1.12°C)		 30.28°F
(-0.96°C)		 -0.30°F
(-0.16°C)		 41st Coolest
Coolest since:
 1917
87th Warmest
Warmest since:
 2012
Ties: 1922
Oct 1901–May 1902
8-Month 		31.53°F
(-0.26°C)		 31.68°F
(-0.18°C)		 -0.15°F
(-0.08°C)		 51st Coolest
Coolest since:
 1917
77th Warmest
Warmest since:
 2016, 2017
Ties: 1975
Sep 1901–May 1902
9-Month 		33.67°F
(0.93°C)		 33.92°F
(1.07°C)		 -0.25°F
(-0.14°C)		 44th Coolest
Coolest since:
 1917
84th Warmest
Warmest since:
 2016
Aug 1901–May 1902
10-Month 		36.33°F
(2.41°C)		 36.44°F
(2.47°C)		 -0.11°F
(-0.06°C)		 53rd Coolest
Coolest since:
 1917
75th Warmest
Warmest since:
 2017
Jul 1901–May 1902
11-Month 		38.71°F
(3.73°C)		 38.63°F
(3.68°C)		 0.08°F
(0.05°C)		 62nd Coolest
Coolest since:
 1917
66th Warmest
Warmest since:
 2017
Ties: 1945
Jun 1901–May 1902
12-Month 		40.11°F
(4.51°C)		 40.04°F
(4.47°C)		 0.07°F
(0.04°C)		 62nd Coolest
Coolest since:
 1917
66th Warmest
Warmest since:
 2017
Ties: 1940, 1978
Dec 1900–May 1902
18-Month 		36.69°F
(2.61°C)		 36.76°F
(2.64°C)		 -0.07°F
(-0.03°C)		 52nd Coolest
Coolest since:
 1918
75th Warmest
Warmest since:
 2017
Jun 1900–May 1902
24-Month 		40.27°F
(4.59°C)		 40.03°F
(4.46°C)		 0.24°F
(0.13°C)		 72nd Coolest
Coolest since:
 1918
55th Warmest
Warmest since:
 2017
Jun 1899–May 1902
36-Month 		40.29°F
(4.61°C)		 40.02°F
(4.46°C)		 0.27°F
(0.15°C)		 72nd Coolest
Coolest since:
 1918
54th Warmest
Warmest to Date
 2017
Jun 1898–May 1902
48-Month 		39.81°F
(4.34°C)		 40.01°F
(4.45°C)		 -0.20°F
(-0.11°C)		 38th Coolest
Coolest since:
 1918
87th Warmest
Warmest to Date
 2018
Ties: 1949, 1962
Jun 1897–May 1902
60-Month 		39.84°F
(4.36°C)		 40.00°F
(4.44°C)		 -0.16°F
(-0.08°C)		 42nd Coolest
Coolest since:
 1920
82nd Warmest
Warmest to Date
 2020
Ties: 1977

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