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, October 1940

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  • Record Coolest
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  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
October 1940
1-Month
42.93°F
(6.07°C)
41.41°F
(5.23°C)
1.52°F
(0.84°C)
103rd Coolest
Coolest since:
1917
26th Warmest
Warmest since:
1947
Ties: 2017
Sep–Oct 1940
2-Month
47.75°F
(8.75°C)
46.66°F
(8.14°C)
1.09°F
(0.61°C)
104th Coolest
Coolest since:
1917
25th Warmest
Warmest since:
2015
Aug–Oct 1940
3-Month
51.50°F
(10.83°C)
50.79°F
(10.44°C)
0.71°F
(0.39°C)
92nd Coolest
Coolest since:
1917
37th Warmest
Warmest since:
2016
Ties: 1960
Jul–Oct 1940
4-Month
53.80°F
(12.11°C)
53.23°F
(11.79°C)
0.57°F
(0.32°C)
87th Coolest
Coolest since:
1976
42nd Warmest
Warmest since:
2021
Jun–Oct 1940
5-Month
54.28°F
(12.38°C)
53.70°F
(12.06°C)
0.58°F
(0.32°C)
86th Coolest
Coolest since:
1917
43rd Warmest
Warmest since:
2021
Ties: 1901, 1954
May–Oct 1940
6-Month
53.09°F
(11.72°C)
52.66°F
(11.48°C)
0.43°F
(0.24°C)
81st Coolest
Coolest since:
1917
48th Warmest
Warmest since:
2018
Ties: 1988
Apr–Oct 1940
7-Month
50.98°F
(10.54°C)
50.66°F
(10.37°C)
0.32°F
(0.17°C)
76th Coolest
Coolest since:
1917
53rd Warmest
Warmest since:
2015
Ties: 1988
Mar–Oct 1940
8-Month
48.37°F
(9.09°C)
48.07°F
(8.93°C)
0.30°F
(0.16°C)
74th Coolest
Coolest since:
1917
55th Warmest
Warmest since:
2016
Ties: 1947
Feb–Oct 1940
9-Month
45.69°F
(7.61°C)
45.26°F
(7.37°C)
0.43°F
(0.24°C)
80th Coolest
Coolest since:
1917
49th Warmest
Warmest since:
2016
Jan–Oct 1940
10-Month
42.53°F
(5.85°C)
42.71°F
(5.95°C)
-0.18°F
(-0.10°C)
48th Coolest
Coolest since:
1917
81st Warmest
Warmest since:
2016
Dec 1939–Oct 1940
11-Month
41.08°F
(5.04°C)
40.89°F
(4.94°C)
0.19°F
(0.10°C)
73rd Coolest
Coolest since:
1917
55th Warmest
Warmest since:
2016
Nov 1939–Oct 1940
12-Month
40.13°F
(4.52°C)
40.04°F
(4.47°C)
0.09°F
(0.05°C)
66th Coolest
Coolest since:
1917
62nd Warmest
Warmest since:
2016
May 1939–Oct 1940
18-Month
44.54°F
(6.97°C)
44.25°F
(6.81°C)
0.29°F
(0.16°C)
75th Coolest
Coolest since:
1917
53rd Warmest
Warmest since:
2016
Ties: 1953
Nov 1938–Oct 1940
24-Month
40.18°F
(4.54°C)
40.03°F
(4.46°C)
0.15°F
(0.08°C)
68th Coolest
Coolest since:
1917, 1918
59th Warmest
Warmest since:
2017
Ties: 1921
Nov 1937–Oct 1940
36-Month
40.55°F
(4.75°C)
40.03°F
(4.46°C)
0.52°F
(0.29°C)
88th Coolest
Coolest since:
1918
38th Warmest
Warmest since:
2017
Nov 1936–Oct 1940
48-Month
40.30°F
(4.61°C)
40.01°F
(4.45°C)
0.29°F
(0.16°C)
80th Coolest
Coolest since:
1918
45th Warmest
Warmest since:
2018
Nov 1935–Oct 1940
60-Month
40.15°F
(4.53°C)
40.00°F
(4.44°C)
0.15°F
(0.09°C)
72nd Coolest
Coolest since:
1920
52nd Warmest
Warmest since:
2019, 2020
Ties: 1944

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