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.

Maximum 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 		75.70°F
(24.28°C)		 77.81°F
(25.45°C)		 -2.11°F
(-1.17°C)		 12th Coolest
Coolest since:
 1965
117th Warmest
Warmest since:
 1998
Aug–Sep 1901
2-Month 		80.92°F
(27.18°C)		 81.48°F
(27.49°C)		 -0.56°F
(-0.31°C)		 39th Coolest
Coolest since:
 1965
90th Warmest
Warmest since:
 1998
Jul–Sep 1901
3-Month 		83.93°F
(28.85°C)		 83.21°F
(28.45°C)		 0.72°F
(0.40°C)		 88th Coolest
Coolest since:
 1912
41st Warmest
Warmest to Date
 1936
Jun–Sep 1901
4-Month 		83.30°F
(28.50°C)		 82.74°F
(28.19°C)		 0.56°F
(0.31°C)		 81st Coolest
Coolest since:
 1915
48th Warmest
Warmest to Date
 1936
Ties: 1935
May–Sep 1901
5-Month 		81.46°F
(27.48°C)		 80.78°F
(27.10°C)		 0.68°F
(0.38°C)		 86th Coolest
Coolest since:
 1915
43rd Warmest
Warmest since:
 1936
Ties: 1970
Apr–Sep 1901
6-Month 		78.16°F
(25.64°C)		 77.90°F
(25.50°C)		 0.26°F
(0.14°C)		 66th Coolest
Coolest since:
 1907
63rd Warmest
Warmest since:
 2012
Mar–Sep 1901
7-Month 		74.49°F
(23.61°C)		 74.35°F
(23.53°C)		 0.14°F
(0.08°C)		 63rd Coolest
Coolest since:
 1912
66th Warmest
Warmest since:
 2012
Feb–Sep 1901
8-Month 		70.21°F
(21.23°C)		 70.66°F
(21.48°C)		 -0.45°F
(-0.25°C)		 38th Coolest
Coolest since:
 1912
91st Warmest
Warmest since:
 2012
Ties: 1928
Jan–Sep 1901
9-Month 		67.09°F
(19.49°C)		 67.30°F
(19.61°C)		 -0.21°F
(-0.12°C)		 46th Coolest
Coolest since:
 1912
83rd Warmest
Warmest since:
 2012
Ties: 1927, 1964
Dec 1900–Sep 1901
10-Month 		64.85°F
(18.25°C)		 64.86°F
(18.26°C)		 -0.01°F
(-0.01°C)		 53rd Coolest
Coolest since:
 1912
75th Warmest
Warmest since:
 2012
Ties: 1896, 1898
Nov 1900–Sep 1901
11-Month 		63.71°F
(17.62°C)		 63.75°F
(17.64°C)		 -0.04°F
(-0.02°C)		 48th Coolest
Coolest since:
 1912
80th Warmest
Warmest since:
 2012
Ties: 1898, 1944
Oct 1900–Sep 1901
12-Month 		64.06°F
(17.81°C)		 64.01°F
(17.78°C)		 0.05°F
(0.03°C)		 59th Coolest
Coolest since:
 1912
69th Warmest
Warmest since:
 2012
Apr 1900–Sep 1901
18-Month 		68.86°F
(20.48°C)		 68.64°F
(20.36°C)		 0.22°F
(0.12°C)		 70th Coolest
Coolest since:
 1912
58th Warmest
Warmest since:
 2012
Oct 1899–Sep 1901
24-Month 		64.26°F
(17.92°C)		 64.00°F
(17.78°C)		 0.26°F
(0.14°C)		 72nd Coolest
Coolest since:
 1913
55th Warmest
Warmest to Date
 2017
Oct 1898–Sep 1901
36-Month 		63.50°F
(17.50°C)		 63.98°F
(17.77°C)		 -0.48°F
(-0.27°C)		 26th Coolest
Coolest since:
 1917
100th Warmest
Warmest since:
 2018
Oct 1897–Sep 1901
48-Month 		63.63°F
(17.57°C)		 63.97°F
(17.76°C)		 -0.34°F
(-0.19°C)		 29th Coolest
Coolest since:
 1915
96th Warmest
Warmest to Date
 2018
Ties: 1968
Oct 1896–Sep 1901
60-Month 		63.55°F
(17.53°C)		 63.96°F
(17.76°C)		 -0.41°F
(-0.23°C)		 22nd Coolest
Coolest since:
 1907
102nd Warmest
Warmest to Date
 2016
Ties: 1913, 1969

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