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 1966

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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 1966
1-Month
39.33°F
(4.07°C)
41.41°F
(5.23°C)
-2.08°F
(-1.16°C)
8th Coolest
Coolest since:
1917
121st Warmest
Warmest since:
1947
Sep–Oct 1966
2-Month
45.64°F
(7.58°C)
46.65°F
(8.14°C)
-1.01°F
(-0.56°C)
21st Coolest
Coolest since:
1917
108th Warmest
Warmest since:
2015
Aug–Oct 1966
3-Month
49.80°F
(9.89°C)
50.79°F
(10.44°C)
-0.99°F
(-0.55°C)
12th Coolest
Coolest since:
1917
117th Warmest
Warmest since:
2016
Ties: 1896, 1902
Jul–Oct 1966
4-Month
52.78°F
(11.54°C)
53.22°F
(11.79°C)
-0.44°F
(-0.25°C)
30th Coolest
Coolest since:
1976
99th Warmest
Warmest since:
2021
Ties: 1956
Jun–Oct 1966
5-Month
53.17°F
(11.76°C)
53.71°F
(12.06°C)
-0.54°F
(-0.30°C)
25th Coolest
Coolest since:
1917
104th Warmest
Warmest since:
2021
May–Oct 1966
6-Month
52.06°F
(11.14°C)
52.66°F
(11.48°C)
-0.60°F
(-0.34°C)
18th Coolest
Coolest since:
1917
111th Warmest
Warmest since:
2018
Ties: 1909, 1965
Apr–Oct 1966
7-Month
49.99°F
(9.99°C)
50.66°F
(10.37°C)
-0.67°F
(-0.38°C)
18th Coolest
Coolest since:
1917
111th Warmest
Warmest since:
2015
Mar–Oct 1966
8-Month
47.55°F
(8.64°C)
48.07°F
(8.93°C)
-0.52°F
(-0.29°C)
25th Coolest
Coolest since:
1917
104th Warmest
Warmest since:
2016
Ties: 1967
Feb–Oct 1966
9-Month
44.55°F
(6.97°C)
45.26°F
(7.37°C)
-0.71°F
(-0.40°C)
17th Coolest
Coolest since:
1917
112th Warmest
Warmest since:
2016
Jan–Oct 1966
10-Month
41.74°F
(5.41°C)
42.72°F
(5.96°C)
-0.98°F
(-0.55°C)
12th Coolest
Coolest since:
1917
117th Warmest
Warmest since:
2016
Dec 1965–Oct 1966
11-Month
40.30°F
(4.61°C)
40.89°F
(4.94°C)
-0.59°F
(-0.33°C)
22nd Coolest
Coolest since:
1917
106th Warmest
Warmest since:
2016
Ties: 1902
Nov 1965–Oct 1966
12-Month
39.76°F
(4.31°C)
40.04°F
(4.47°C)
-0.28°F
(-0.16°C)
40th Coolest
Coolest since:
1917
88th Warmest
Warmest since:
2016
May 1965–Oct 1966
18-Month
43.86°F
(6.59°C)
44.25°F
(6.81°C)
-0.39°F
(-0.22°C)
29th Coolest
Coolest since:
1917
99th Warmest
Warmest since:
2016
Ties: 1956
Nov 1964–Oct 1966
24-Month
39.57°F
(4.21°C)
40.04°F
(4.47°C)
-0.47°F
(-0.26°C)
20th Coolest
Coolest since:
1917, 1918
107th Warmest
Warmest since:
2017
Ties: 1925
Nov 1963–Oct 1966
36-Month
39.43°F
(4.13°C)
40.02°F
(4.46°C)
-0.59°F
(-0.33°C)
13th Coolest
Coolest since:
1918
113th Warmest
Warmest since:
2017
Nov 1962–Oct 1966
48-Month
39.64°F
(4.24°C)
40.01°F
(4.45°C)
-0.37°F
(-0.21°C)
22nd Coolest
Coolest since:
1918
103rd Warmest
Warmest since:
2018
Ties: 1968
Nov 1961–Oct 1966
60-Month
39.62°F
(4.23°C)
40.00°F
(4.44°C)
-0.38°F
(-0.21°C)
16th Coolest
Coolest since:
1920
108th Warmest
Warmest since:
2019, 2020
Ties: 1951, 1980

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