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 1921

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  • Record Coolest
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
October 1921
1-Month
41.36°F
(5.20°C)
41.41°F
(5.23°C)
-0.05°F
(-0.03°C)
59th Coolest
Coolest since:
1917
70th Warmest
Warmest since:
1947
Sep–Oct 1921
2-Month
47.54°F
(8.63°C)
46.66°F
(8.14°C)
0.88°F
(0.49°C)
95th Coolest
Coolest since:
1917
34th Warmest
Warmest since:
2015
Ties: 1962, 2000, 2011
Aug–Oct 1921
3-Month
51.36°F
(10.76°C)
50.79°F
(10.44°C)
0.57°F
(0.32°C)
85th Coolest
Coolest since:
1917
44th Warmest
Warmest since:
2016
Ties: 1934, 1986
Jul–Oct 1921
4-Month
53.95°F
(12.19°C)
53.22°F
(11.79°C)
0.73°F
(0.40°C)
95th Coolest
Coolest since:
1976
34th Warmest
Warmest since:
2021
Jun–Oct 1921
5-Month
54.71°F
(12.62°C)
53.71°F
(12.06°C)
1.00°F
(0.56°C)
104th Coolest
Coolest since:
1917
25th Warmest
Warmest since:
2021
May–Oct 1921
6-Month
53.53°F
(11.96°C)
52.66°F
(11.48°C)
0.87°F
(0.48°C)
98th Coolest
Coolest since:
1917
31st Warmest
Warmest since:
2018
Apr–Oct 1921
7-Month
51.35°F
(10.75°C)
50.66°F
(10.37°C)
0.69°F
(0.38°C)
92nd Coolest
Coolest since:
1917
37th Warmest
Warmest since:
2015
Mar–Oct 1921
8-Month
49.27°F
(9.59°C)
48.07°F
(8.93°C)
1.20°F
(0.66°C)
109th Coolest
Coolest since:
1917
20th Warmest
Warmest to Date
2016
Ties: 2001
Feb–Oct 1921
9-Month
46.63°F
(8.13°C)
45.27°F
(7.37°C)
1.36°F
(0.76°C)
112th Coolest
Coolest since:
1917
17th Warmest
Warmest to Date
2016
Ties: 1938
Jan–Oct 1921
10-Month
44.39°F
(6.88°C)
42.72°F
(5.96°C)
1.67°F
(0.92°C)
115th Coolest
Coolest since:
1917
14th Warmest
Warmest to Date
2016
Ties: 1990
Dec 1920–Oct 1921
11-Month
42.49°F
(5.83°C)
40.89°F
(4.94°C)
1.60°F
(0.89°C)
114th Coolest
Coolest since:
1917
14th Warmest
Warmest to Date
2016
Nov 1920–Oct 1921
12-Month
41.42°F
(5.23°C)
40.04°F
(4.47°C)
1.38°F
(0.76°C)
111th Coolest
Coolest since:
1917
17th Warmest
Warmest to Date
2016
May 1920–Oct 1921
18-Month
45.04°F
(7.24°C)
44.25°F
(6.81°C)
0.79°F
(0.43°C)
97th Coolest
Coolest since:
1917
31st Warmest
Warmest to Date
2016
Nov 1919–Oct 1921
24-Month
40.18°F
(4.54°C)
40.04°F
(4.47°C)
0.14°F
(0.07°C)
68th Coolest
Coolest since:
1917, 1918
59th Warmest
Warmest since:
2017
Ties: 1940
Nov 1918–Oct 1921
36-Month
40.28°F
(4.60°C)
40.02°F
(4.46°C)
0.26°F
(0.14°C)
70th Coolest
Coolest since:
1918
56th Warmest
Warmest to Date
2017
Nov 1917–Oct 1921
48-Month
40.04°F
(4.47°C)
40.01°F
(4.45°C)
0.03°F
(0.02°C)
59th Coolest
Coolest since:
1918
66th Warmest
Warmest to Date
2018
Ties: 1958
Nov 1916–Oct 1921
60-Month
39.49°F
(4.16°C)
40.00°F
(4.44°C)
-0.51°F
(-0.28°C)
11th Coolest
Coolest since:
1920
113th Warmest
Warmest since:
2019, 2020

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