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 1946

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
May 1946
1-Month 		46.24°F
(7.91°C)		 47.44°F
(8.58°C)		 -1.20°F
(-0.67°C)		 19th Coolest
Coolest since:
 1917
110th Warmest
Warmest since:
 2018
Apr–May 1946
2-Month 		43.71°F
(6.51°C)		 43.03°F
(6.13°C)		 0.68°F
(0.38°C)		 86th Coolest
Coolest since:
 1907
43rd Warmest
Warmest since:
 2012
Ties: 1922
Mar–May 1946
3-Month 		40.69°F
(4.83°C)		 38.68°F
(3.71°C)		 2.01°F
(1.12°C)		 117th Coolest
Coolest since:
 1917
12th Warmest
Warmest to Date
 2012
Feb–May 1946
4-Month 		36.15°F
(2.31°C)		 34.72°F
(1.51°C)		 1.43°F
(0.80°C)		 104th Coolest
Coolest since:
 1917
25th Warmest
Warmest since:
 2012
Ties: 2018
Jan–May 1946
5-Month 		33.08°F
(0.60°C)		 31.72°F
(-0.16°C)		 1.36°F
(0.76°C)		 102nd Coolest
Coolest since:
 1917
27th Warmest
Warmest since:
 2012
Ties: 2021
Dec 1945–May 1946
6-Month 		30.79°F
(-0.67°C)		 30.21°F
(-0.99°C)		 0.58°F
(0.32°C)		 84th Coolest
Coolest since:
 1917
44th Warmest
Warmest since:
 2012
Nov 1945–May 1946
7-Month 		30.78°F
(-0.68°C)		 30.28°F
(-0.96°C)		 0.50°F
(0.28°C)		 82nd Coolest
Coolest since:
 1917
46th Warmest
Warmest since:
 2012
Oct 1945–May 1946
8-Month 		32.08°F
(0.04°C)		 31.68°F
(-0.18°C)		 0.40°F
(0.22°C)		 78th Coolest
Coolest since:
 1917
50th Warmest
Warmest since:
 2016, 2017
Ties: 2008
Sep 1945–May 1946
9-Month 		34.29°F
(1.27°C)		 33.92°F
(1.07°C)		 0.37°F
(0.20°C)		 80th Coolest
Coolest since:
 1917
48th Warmest
Warmest since:
 2016
Aug 1945–May 1946
10-Month 		36.77°F
(2.65°C)		 36.44°F
(2.47°C)		 0.33°F
(0.18°C)		 79th Coolest
Coolest since:
 1917
49th Warmest
Warmest since:
 2017
Ties: 1911
Jul 1945–May 1946
11-Month 		38.86°F
(3.81°C)		 38.63°F
(3.68°C)		 0.23°F
(0.13°C)		 74th Coolest
Coolest since:
 1917
54th Warmest
Warmest since:
 2017
Jun 1945–May 1946
12-Month 		40.08°F
(4.49°C)		 40.04°F
(4.47°C)		 0.04°F
(0.02°C)		 58th Coolest
Coolest since:
 1917
70th Warmest
Warmest since:
 2017
Ties: 1980, 1988
Dec 1944–May 1946
18-Month 		36.87°F
(2.71°C)		 36.76°F
(2.64°C)		 0.11°F
(0.07°C)		 67th Coolest
Coolest since:
 1918
60th Warmest
Warmest since:
 2017
Jun 1944–May 1946
24-Month 		40.10°F
(4.50°C)		 40.03°F
(4.46°C)		 0.07°F
(0.04°C)		 61st Coolest
Coolest since:
 1918
66th Warmest
Warmest since:
 2017
Ties: 1923
Jun 1943–May 1946
36-Month 		40.00°F
(4.44°C)		 40.02°F
(4.46°C)		 -0.02°F
(-0.02°C)		 56th Coolest
Coolest since:
 1918
70th Warmest
Warmest since:
 2017
Ties: 1938, 1947
Jun 1942–May 1946
48-Month 		39.95°F
(4.42°C)		 40.01°F
(4.45°C)		 -0.06°F
(-0.03°C)		 50th Coolest
Coolest since:
 1918
75th Warmest
Warmest since:
 2018
Ties: 1947
Jun 1941–May 1946
60-Month 		40.06°F
(4.48°C)		 40.00°F
(4.44°C)		 0.06°F
(0.04°C)		 66th Coolest
Coolest since:
 1920
58th Warmest
Warmest since:
 2020
Ties: 1974

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