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 1938

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1938
1-Month
53.26°F
(11.81°C)
51.90°F
(11.06°C)
1.36°F
(0.75°C)
100th Coolest
Coolest since:
1918
29th Warmest
Warmest since:
2019
Ties: 1900
Aug–Sep 1938
2-Month
56.70°F
(13.72°C)
55.48°F
(13.04°C)
1.22°F
(0.68°C)
103rd Coolest
Coolest since:
1974
26th Warmest
Warmest since:
2019
Jul–Sep 1938
3-Month
58.09°F
(14.49°C)
57.16°F
(13.98°C)
0.93°F
(0.51°C)
98th Coolest
Coolest since:
1924
31st Warmest
Warmest since:
2022
Jun–Sep 1938
4-Month
57.57°F
(14.21°C)
56.78°F
(13.77°C)
0.79°F
(0.44°C)
97th Coolest
Coolest since:
1903
32nd Warmest
Warmest since:
2021
May–Sep 1938
5-Month
55.58°F
(13.10°C)
54.92°F
(12.73°C)
0.66°F
(0.37°C)
88th Coolest
Coolest since:
1907, 1924
41st Warmest
Warmest since:
2018
Apr–Sep 1938
6-Month
52.88°F
(11.60°C)
52.20°F
(11.22°C)
0.68°F
(0.38°C)
92nd Coolest
Coolest since:
1907
37th Warmest
Warmest since:
2018
Ties: 1937
Mar–Sep 1938
7-Month
50.16°F
(10.09°C)
49.03°F
(9.46°C)
1.13°F
(0.63°C)
104th Coolest
Coolest since:
1917
25th Warmest
Warmest since:
2012
Feb–Sep 1938
8-Month
47.11°F
(8.39°C)
45.75°F
(7.64°C)
1.36°F
(0.75°C)
109th Coolest
Coolest since:
1917
20th Warmest
Warmest since:
2012
Jan–Sep 1938
9-Month
44.33°F
(6.85°C)
42.85°F
(6.03°C)
1.48°F
(0.82°C)
111th Coolest
Coolest since:
1917
18th Warmest
Warmest since:
2012
Dec 1937–Sep 1938
10-Month
42.25°F
(5.69°C)
40.84°F
(4.91°C)
1.41°F
(0.78°C)
107th Coolest
Coolest since:
1917
21st Warmest
Warmest since:
2016
Nov 1937–Sep 1938
11-Month
41.13°F
(5.07°C)
39.91°F
(4.39°C)
1.22°F
(0.68°C)
100th Coolest
Coolest since:
1917
28th Warmest
Warmest since:
2016
Oct 1937–Sep 1938
12-Month
41.16°F
(5.09°C)
40.04°F
(4.47°C)
1.12°F
(0.62°C)
103rd Coolest
Coolest since:
1917
25th Warmest
Warmest since:
2016
Ties: 1983
Apr 1937–Sep 1938
18-Month
45.07°F
(7.26°C)
44.10°F
(6.72°C)
0.97°F
(0.54°C)
102nd Coolest
Coolest since:
1917
26th Warmest
Warmest since:
2016
Oct 1936–Sep 1938
24-Month
40.33°F
(4.63°C)
40.03°F
(4.46°C)
0.30°F
(0.17°C)
77th Coolest
Coolest since:
1918
50th Warmest
Warmest since:
2017
Oct 1935–Sep 1938
36-Month
40.07°F
(4.48°C)
40.02°F
(4.46°C)
0.05°F
(0.02°C)
63rd Coolest
Coolest since:
1918
63rd Warmest
Warmest since:
2017, 2018
Oct 1934–Sep 1938
48-Month
40.27°F
(4.59°C)
40.01°F
(4.45°C)
0.26°F
(0.14°C)
76th Coolest
Coolest since:
1918
49th Warmest
Warmest since:
2018
Oct 1933–Sep 1938
60-Month
40.46°F
(4.70°C)
40.00°F
(4.44°C)
0.46°F
(0.26°C)
86th Coolest
Coolest since:
1920
38th Warmest
Warmest since:
2019, 2020

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