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, September 1958

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  • Top 1/3
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1958
1-Month
52.88°F
(11.60°C)
51.90°F
(11.06°C)
0.98°F
(0.54°C)
91st Coolest
Coolest since:
1918
38th Warmest
Warmest since:
2019
Ties: 1969
Aug–Sep 1958
2-Month
56.40°F
(13.56°C)
55.48°F
(13.04°C)
0.92°F
(0.52°C)
95th Coolest
Coolest since:
1974
34th Warmest
Warmest since:
2019
Ties: 2000
Jul–Sep 1958
3-Month
57.66°F
(14.26°C)
57.17°F
(13.98°C)
0.49°F
(0.28°C)
85th Coolest
Coolest since:
1924
44th Warmest
Warmest since:
2022
Ties: 1934
Jun–Sep 1958
4-Month
57.07°F
(13.93°C)
56.78°F
(13.77°C)
0.29°F
(0.16°C)
66th Coolest
Coolest since:
1903
63rd Warmest
Warmest since:
2021
May–Sep 1958
5-Month
55.42°F
(13.01°C)
54.91°F
(12.73°C)
0.51°F
(0.28°C)
83rd Coolest
Coolest since:
1907, 1924
46th Warmest
Warmest since:
2018
Apr–Sep 1958
6-Month
52.60°F
(11.44°C)
52.20°F
(11.22°C)
0.40°F
(0.22°C)
75th Coolest
Coolest since:
1907
54th Warmest
Warmest since:
2018
Ties: 1999
Mar–Sep 1958
7-Month
49.16°F
(9.53°C)
49.02°F
(9.46°C)
0.14°F
(0.07°C)
62nd Coolest
Coolest since:
1917
67th Warmest
Warmest since:
2012
Ties: 1914
Feb–Sep 1958
8-Month
45.75°F
(7.64°C)
45.75°F
(7.64°C)
0.00°F
(0.00°C)
59th Coolest
Coolest since:
1917
70th Warmest
Warmest since:
2012
Jan–Sep 1958
9-Month
43.05°F
(6.14°C)
42.86°F
(6.03°C)
0.19°F
(0.11°C)
69th Coolest
Coolest since:
1917
60th Warmest
Warmest since:
2012
Dec 1957–Sep 1958
10-Month
41.37°F
(5.21°C)
40.84°F
(4.91°C)
0.53°F
(0.30°C)
84th Coolest
Coolest since:
1917
44th Warmest
Warmest since:
2016
Ties: 1919
Nov 1957–Sep 1958
11-Month
40.40°F
(4.67°C)
39.92°F
(4.40°C)
0.48°F
(0.27°C)
85th Coolest
Coolest since:
1917
43rd Warmest
Warmest since:
2016
Oct 1957–Sep 1958
12-Month
40.46°F
(4.70°C)
40.05°F
(4.47°C)
0.41°F
(0.23°C)
81st Coolest
Coolest since:
1917
47th Warmest
Warmest since:
2016
Ties: 1911
Apr 1957–Sep 1958
18-Month
44.43°F
(6.91°C)
44.09°F
(6.72°C)
0.34°F
(0.19°C)
80th Coolest
Coolest since:
1917
48th Warmest
Warmest since:
2016
Ties: 1978
Oct 1956–Sep 1958
24-Month
40.47°F
(4.71°C)
40.03°F
(4.46°C)
0.44°F
(0.25°C)
81st Coolest
Coolest since:
1918
46th Warmest
Warmest since:
2017
Ties: 1983
Oct 1955–Sep 1958
36-Month
40.04°F
(4.47°C)
40.02°F
(4.46°C)
0.02°F
(0.01°C)
60th Coolest
Coolest since:
1918
66th Warmest
Warmest since:
2017, 2018
Oct 1954–Sep 1958
48-Month
40.05°F
(4.47°C)
40.01°F
(4.45°C)
0.04°F
(0.02°C)
60th Coolest
Coolest since:
1918
65th Warmest
Warmest since:
2018
Ties: 1974
Oct 1953–Sep 1958
60-Month
40.22°F
(4.57°C)
40.00°F
(4.44°C)
0.22°F
(0.13°C)
76th Coolest
Coolest since:
1920
48th Warmest
Warmest since:
2019, 2020

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