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 1901

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
October 1901
1-Month 		42.39°F
(5.77°C)		 41.41°F
(5.23°C)		 0.98°F
(0.54°C)		 92nd Coolest
Coolest since:
 1917
37th Warmest
Warmest since:
 1947
Sep–Oct 1901
2-Month 		46.59°F
(8.11°C)		 46.66°F
(8.14°C)		 -0.07°F
(-0.03°C)		 53rd Coolest
Coolest since:
 1917
76th Warmest
Warmest since:
 2015
Ties: 1945
Aug–Oct 1901
3-Month 		51.14°F
(10.63°C)		 50.79°F
(10.44°C)		 0.35°F
(0.19°C)		 73rd Coolest
Coolest since:
 1917
56th Warmest
Warmest since:
 2016
Jul–Oct 1901
4-Month 		53.99°F
(12.22°C)		 53.23°F
(11.79°C)		 0.76°F
(0.43°C)		 96th Coolest
Coolest since:
 1976
33rd Warmest
Warmest since:
 2021
Jun–Oct 1901
5-Month 		54.28°F
(12.38°C)		 53.71°F
(12.06°C)		 0.57°F
(0.32°C)		 86th Coolest
Coolest since:
 1917
43rd Warmest
Warmest since:
 2021
Ties: 1940, 1954
May–Oct 1901
6-Month 		53.27°F
(11.82°C)		 52.66°F
(11.48°C)		 0.61°F
(0.34°C)		 89th Coolest
Coolest since:
 1917
40th Warmest
Warmest since:
 2018
Apr–Oct 1901
7-Month 		50.96°F
(10.53°C)		 50.65°F
(10.36°C)		 0.31°F
(0.17°C)		 74th Coolest
Coolest since:
 1917
55th Warmest
Warmest since:
 2015
Ties: 1949
Mar–Oct 1901
8-Month 		48.21°F
(9.01°C)		 48.07°F
(8.93°C)		 0.14°F
(0.08°C)		 61st Coolest
Coolest since:
 1917
68th Warmest
Warmest since:
 2016
Feb–Oct 1901
9-Month 		45.02°F
(7.23°C)		 45.27°F
(7.37°C)		 -0.25°F
(-0.14°C)		 43rd Coolest
Coolest since:
 1917
86th Warmest
Warmest since:
 2016
Jan–Oct 1901
10-Month 		42.63°F
(5.91°C)		 42.71°F
(5.95°C)		 -0.08°F
(-0.04°C)		 57th Coolest
Coolest since:
 1917
72nd Warmest
Warmest since:
 2016
Dec 1900–Oct 1901
11-Month 		40.96°F
(4.98°C)		 40.89°F
(4.94°C)		 0.07°F
(0.04°C)		 63rd Coolest
Coolest since:
 1917
65th Warmest
Warmest since:
 2016
Nov 1900–Oct 1901
12-Month 		40.12°F
(4.51°C)		 40.04°F
(4.47°C)		 0.08°F
(0.04°C)		 65th Coolest
Coolest since:
 1917
63rd Warmest
Warmest since:
 2016
May 1900–Oct 1901
18-Month 		44.73°F
(7.07°C)		 44.25°F
(6.81°C)		 0.48°F
(0.26°C)		 86th Coolest
Coolest since:
 1917
42nd Warmest
Warmest since:
 2016
Nov 1899–Oct 1901
24-Month 		40.56°F
(4.76°C)		 40.04°F
(4.47°C)		 0.52°F
(0.29°C)		 84th Coolest
Coolest since:
 1917, 1918
43rd Warmest
Warmest to Date
 2017
Ties: 1941
Nov 1898–Oct 1901
36-Month 		39.79°F
(4.33°C)		 40.02°F
(4.46°C)		 -0.23°F
(-0.13°C)		 38th Coolest
Coolest since:
 1918
88th Warmest
Warmest since:
 2017
Ties: 1949
Nov 1897–Oct 1901
48-Month 		39.83°F
(4.35°C)		 40.01°F
(4.45°C)		 -0.18°F
(-0.10°C)		 40th Coolest
Coolest since:
 1918
85th Warmest
Warmest to Date
 2018
Ties: 1931
Nov 1896–Oct 1901
60-Month 		39.85°F
(4.36°C)		 40.00°F
(4.44°C)		 -0.15°F
(-0.08°C)		 41st Coolest
Coolest since:
 1920
83rd Warmest
Warmest to Date
 2020
Ties: 1927, 1929

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