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 1955

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
May 1955
1-Month
48.29°F
(9.05°C)
47.44°F
(8.58°C)
0.85°F
(0.47°C)
90th Coolest
Coolest since:
1917
39th Warmest
Warmest since:
2018
Apr–May 1955
2-Month
44.21°F
(6.78°C)
43.03°F
(6.13°C)
1.18°F
(0.65°C)
105th Coolest
Coolest since:
1907
24th Warmest
Warmest since:
2012
Mar–May 1955
3-Month
38.74°F
(3.74°C)
38.68°F
(3.71°C)
0.06°F
(0.03°C)
61st Coolest
Coolest since:
1917
68th Warmest
Warmest since:
2012
Feb–May 1955
4-Month
33.98°F
(1.10°C)
34.71°F
(1.51°C)
-0.73°F
(-0.41°C)
33rd Coolest
Coolest since:
1917
96th Warmest
Warmest since:
2012
Jan–May 1955
5-Month
31.07°F
(-0.52°C)
31.72°F
(-0.16°C)
-0.65°F
(-0.36°C)
35th Coolest
Coolest since:
1917
94th Warmest
Warmest since:
2012
Ties: 1943, 2014
Dec 1954–May 1955
6-Month
29.78°F
(-1.23°C)
30.21°F
(-0.99°C)
-0.43°F
(-0.24°C)
43rd Coolest
Coolest since:
1917
85th Warmest
Warmest since:
2012
Nov 1954–May 1955
7-Month
30.11°F
(-1.05°C)
30.29°F
(-0.95°C)
-0.18°F
(-0.10°C)
51st Coolest
Coolest since:
1917
77th Warmest
Warmest since:
2012
Ties: 1903
Oct 1954–May 1955
8-Month
31.61°F
(-0.22°C)
31.68°F
(-0.18°C)
-0.07°F
(-0.04°C)
59th Coolest
Coolest since:
1917
69th Warmest
Warmest since:
2016, 2017
Ties: 1973
Sep 1954–May 1955
9-Month
33.96°F
(1.09°C)
33.92°F
(1.07°C)
0.04°F
(0.02°C)
61st Coolest
Coolest since:
1917
67th Warmest
Warmest since:
2016
Aug 1954–May 1955
10-Month
36.47°F
(2.48°C)
36.44°F
(2.47°C)
0.03°F
(0.01°C)
62nd Coolest
Coolest since:
1917
66th Warmest
Warmest since:
2017
Jul 1954–May 1955
11-Month
38.76°F
(3.76°C)
38.63°F
(3.68°C)
0.13°F
(0.08°C)
67th Coolest
Coolest since:
1917
61st Warmest
Warmest since:
2017
Ties: 1980
Jun 1954–May 1955
12-Month
40.18°F
(4.54°C)
40.05°F
(4.47°C)
0.13°F
(0.07°C)
69th Coolest
Coolest since:
1917
59th Warmest
Warmest since:
2017
Ties: 1984
Dec 1953–May 1955
18-Month
37.18°F
(2.88°C)
36.76°F
(2.64°C)
0.42°F
(0.24°C)
79th Coolest
Coolest since:
1918
48th Warmest
Warmest since:
2017
Ties: 1938
Jun 1953–May 1955
24-Month
40.45°F
(4.69°C)
40.03°F
(4.46°C)
0.42°F
(0.23°C)
81st Coolest
Coolest since:
1918
46th Warmest
Warmest since:
2017
Ties: 1983
Jun 1952–May 1955
36-Month
40.44°F
(4.69°C)
40.02°F
(4.46°C)
0.42°F
(0.23°C)
82nd Coolest
Coolest since:
1918
44th Warmest
Warmest since:
2017
Jun 1951–May 1955
48-Month
40.20°F
(4.56°C)
40.00°F
(4.44°C)
0.20°F
(0.12°C)
74th Coolest
Coolest since:
1918
51st Warmest
Warmest since:
2018
Ties: 1922
Jun 1950–May 1955
60-Month
40.01°F
(4.45°C)
40.00°F
(4.44°C)
0.01°F
(0.01°C)
59th Coolest
Coolest since:
1920
65th Warmest
Warmest since:
2020
Ties: 1982

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