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 1901

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
May 1901
1-Month
48.22°F
(9.01°C)
47.44°F
(8.58°C)
0.78°F
(0.43°C)
88th Coolest
Coolest since:
1917
41st Warmest
Warmest since:
2018
Apr–May 1901
2-Month
42.66°F
(5.92°C)
43.03°F
(6.13°C)
-0.37°F
(-0.21°C)
35th Coolest
Coolest since:
1907
94th Warmest
Warmest since:
2012
Ties: 1913, 1979
Mar–May 1901
3-Month
38.10°F
(3.39°C)
38.68°F
(3.71°C)
-0.58°F
(-0.32°C)
31st Coolest
Coolest since:
1917
98th Warmest
Warmest since:
2012
Feb–May 1901
4-Month
33.44°F
(0.80°C)
34.71°F
(1.51°C)
-1.27°F
(-0.71°C)
15th Coolest
Coolest since:
1917
114th Warmest
Warmest since:
2012
Ties: 1975
Jan–May 1901
5-Month
30.97°F
(-0.57°C)
31.72°F
(-0.16°C)
-0.75°F
(-0.41°C)
33rd Coolest
Coolest since:
1917
96th Warmest
Warmest since:
2012
Ties: 1988
Dec 1900–May 1901
6-Month
29.86°F
(-1.19°C)
30.21°F
(-0.99°C)
-0.35°F
(-0.20°C)
46th Coolest
Coolest since:
1917
82nd Warmest
Warmest since:
2012
Nov 1900–May 1901
7-Month
30.00°F
(-1.11°C)
30.28°F
(-0.96°C)
-0.28°F
(-0.15°C)
44th Coolest
Coolest since:
1917
84th Warmest
Warmest since:
2012
Ties: 1943
Oct 1900–May 1901
8-Month
31.85°F
(-0.08°C)
31.68°F
(-0.18°C)
0.17°F
(0.10°C)
69th Coolest
Coolest since:
1917
59th Warmest
Warmest since:
2016, 2017
Sep 1900–May 1901
9-Month
34.23°F
(1.24°C)
33.93°F
(1.07°C)
0.30°F
(0.17°C)
76th Coolest
Coolest since:
1917
52nd Warmest
Warmest since:
2016
Aug 1900–May 1901
10-Month
36.79°F
(2.66°C)
36.43°F
(2.46°C)
0.36°F
(0.20°C)
81st Coolest
Coolest since:
1917
47th Warmest
Warmest since:
2017
Ties: 1939
Jul 1900–May 1901
11-Month
38.91°F
(3.84°C)
38.62°F
(3.68°C)
0.29°F
(0.16°C)
80th Coolest
Coolest since:
1917
48th Warmest
Warmest since:
2017
Ties: 1997
Jun 1900–May 1901
12-Month
40.42°F
(4.68°C)
40.04°F
(4.47°C)
0.38°F
(0.21°C)
84th Coolest
Coolest since:
1917
44th Warmest
Warmest to Date
2017
Ties: 1997
Dec 1899–May 1901
18-Month
37.12°F
(2.84°C)
36.76°F
(2.64°C)
0.36°F
(0.20°C)
76th Coolest
Coolest since:
1918
51st Warmest
Warmest to Date
2017
Jun 1899–May 1901
24-Month
40.38°F
(4.66°C)
40.04°F
(4.47°C)
0.34°F
(0.19°C)
77th Coolest
Coolest since:
1918
50th Warmest
Warmest to Date
2017
Jun 1898–May 1901
36-Month
39.72°F
(4.29°C)
40.02°F
(4.46°C)
-0.30°F
(-0.17°C)
33rd Coolest
Coolest since:
1918
93rd Warmest
Warmest since:
2017
Ties: 1915, 1949
Jun 1897–May 1901
48-Month
39.78°F
(4.32°C)
40.01°F
(4.45°C)
-0.23°F
(-0.13°C)
36th Coolest
Coolest since:
1918
89th Warmest
Warmest to Date
2018
Ties: 1908
Jun 1896–May 1901
60-Month
39.79°F
(4.33°C)
40.00°F
(4.44°C)
-0.21°F
(-0.11°C)
34th Coolest
Coolest since:
1920
90th Warmest
Warmest to Date
2020
Ties: 1963, 1964

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