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.

Average Temperature Rankings, September 1901

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
September 1901
1-Month 		63.25°F
(17.36°C)		 64.86°F
(18.26°C)		 -1.61°F
(-0.90°C)		 12th Coolest
Coolest since:
 1965
117th Warmest
Warmest since:
 1998
Aug–Sep 1901
2-Month 		68.23°F
(20.13°C)		 68.48°F
(20.27°C)		 -0.25°F
(-0.14°C)		 46th Coolest
Coolest since:
 1974
83rd Warmest
Warmest since:
 1998
Ties: 1926
Jul–Sep 1901
3-Month 		70.90°F
(21.61°C)		 70.19°F
(21.22°C)		 0.71°F
(0.39°C)		 88th Coolest
Coolest since:
 1950
41st Warmest
Warmest to Date
 2022
Jun–Sep 1901
4-Month 		70.28°F
(21.27°C)		 69.77°F
(20.98°C)		 0.51°F
(0.29°C)		 81st Coolest
Coolest since:
 1903
48th Warmest
Warmest since:
 2021, 2022
May–Sep 1901
5-Month 		68.46°F
(20.26°C)		 67.85°F
(19.92°C)		 0.61°F
(0.34°C)		 90th Coolest
Coolest since:
 1907
39th Warmest
Warmest since:
 2018
Ties: 1959
Apr–Sep 1901
6-Month 		65.28°F
(18.49°C)		 65.05°F
(18.36°C)		 0.23°F
(0.13°C)		 66th Coolest
Coolest since:
 1907
63rd Warmest
Warmest since:
 2012
Ties: 1978
Mar–Sep 1901
7-Month 		61.77°F
(16.54°C)		 61.69°F
(16.49°C)		 0.08°F
(0.05°C)		 62nd Coolest
Coolest since:
 1912
67th Warmest
Warmest since:
 2012
Feb–Sep 1901
8-Month 		57.78°F
(14.32°C)		 58.21°F
(14.56°C)		 -0.43°F
(-0.24°C)		 37th Coolest
Coolest since:
 1917
92nd Warmest
Warmest since:
 2012
Jan–Sep 1901
9-Month 		54.88°F
(12.71°C)		 55.08°F
(12.82°C)		 -0.20°F
(-0.11°C)		 47th Coolest
Coolest since:
 1912
82nd Warmest
Warmest since:
 2012
Ties: 1922
Dec 1900–Sep 1901
10-Month 		52.84°F
(11.58°C)		 52.85°F
(11.58°C)		 -0.01°F
(0.00°C)		 50th Coolest
Coolest since:
 1917
78th Warmest
Warmest since:
 2012
Nov 1900–Sep 1901
11-Month 		51.81°F
(11.01°C)		 51.84°F
(11.02°C)		 -0.03°F
(-0.01°C)		 51st Coolest
Coolest since:
 1912
77th Warmest
Warmest since:
 2012
Ties: 1977
Oct 1900–Sep 1901
12-Month 		52.19°F
(11.22°C)		 52.03°F
(11.13°C)		 0.16°F
(0.09°C)		 66th Coolest
Coolest since:
 1912
62nd Warmest
Warmest since:
 2012
Ties: 1940
Apr 1900–Sep 1901
18-Month 		56.72°F
(13.73°C)		 56.37°F
(13.54°C)		 0.35°F
(0.19°C)		 80th Coolest
Coolest since:
 1917
48th Warmest
Warmest to Date
 2012
Ties: 1937
Oct 1899–Sep 1901
24-Month 		52.40°F
(11.33°C)		 52.02°F
(11.12°C)		 0.38°F
(0.21°C)		 84th Coolest
Coolest since:
 1913, 1918
43rd Warmest
Warmest to Date
 2017
Ties: 1933
Oct 1898–Sep 1901
36-Month 		51.61°F
(10.89°C)		 52.00°F
(11.11°C)		 -0.39°F
(-0.22°C)		 21st Coolest
Coolest since:
 1917
105th Warmest
Warmest since:
 2018
Ties: 1962
Oct 1897–Sep 1901
48-Month 		51.73°F
(10.96°C)		 51.99°F
(11.11°C)		 -0.26°F
(-0.15°C)		 31st Coolest
Coolest since:
 1918
94th Warmest
Warmest to Date
 2018
Ties: 1950, 1967, 1978
Oct 1896–Sep 1901
60-Month 		51.68°F
(10.93°C)		 51.98°F
(11.10°C)		 -0.30°F
(-0.17°C)		 24th Coolest
Coolest since:
 1920
100th Warmest
Warmest to Date
 2020
Ties: 1968, 1970

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