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 2017

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  • Record Warmest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
September 2017
1-Month 		66.27°F
(19.04°C)		 64.86°F
(18.26°C)		 1.41°F
(0.78°C)		 99th Coolest
Coolest since:
 1965
30th Warmest
Warmest since:
 1998
Aug–Sep 2017
2-Month 		69.14°F
(20.63°C)		 68.48°F
(20.27°C)		 0.66°F
(0.36°C)		 87th Coolest
Coolest since:
 1974
42nd Warmest
Warmest since:
 1998
Jul–Sep 2017
3-Month 		71.33°F
(21.85°C)		 70.19°F
(21.22°C)		 1.14°F
(0.63°C)		 101st Coolest
Coolest since:
 1950
28th Warmest
Warmest since:
 2022
Jun–Sep 2017
4-Month 		71.08°F
(21.71°C)		 69.76°F
(20.98°C)		 1.32°F
(0.73°C)		 109th Coolest
Coolest since:
 1903
20th Warmest
Warmest since:
 2022
May–Sep 2017
5-Month 		68.98°F
(20.54°C)		 67.85°F
(19.92°C)		 1.13°F
(0.62°C)		 104th Coolest
Coolest since:
 1907
25th Warmest
Warmest since:
 2018
Apr–Sep 2017
6-Month 		66.45°F
(19.14°C)		 65.05°F
(18.36°C)		 1.40°F
(0.78°C)		 115th Coolest
Coolest since:
 1907
14th Warmest
Warmest since:
 2012
Mar–Sep 2017
7-Month 		63.55°F
(17.53°C)		 61.69°F
(16.49°C)		 1.86°F
(1.04°C)		 119th Coolest
Coolest since:
 1912
10th Warmest
Warmest since:
 2012
Feb–Sep 2017
8-Month 		60.76°F
(15.98°C)		 58.21°F
(14.56°C)		 2.55°F
(1.42°C)		 126th Coolest
Coolest since:
 1917
3rd Warmest
Warmest since:
 2012
Jan–Sep 2017
9-Month 		57.73°F
(14.29°C)		 55.08°F
(12.82°C)		 2.65°F
(1.47°C)		 126th Coolest
Coolest since:
 1912
3rd Warmest
Warmest since:
 2012
Dec 2016–Sep 2017
10-Month 		55.26°F
(12.92°C)		 52.85°F
(11.58°C)		 2.41°F
(1.34°C)		 124th Coolest
Coolest since:
 1917
4th Warmest
Warmest since:
 2012
Ties: 2020
Nov 2016–Sep 2017
11-Month 		54.59°F
(12.55°C)		 51.83°F
(11.02°C)		 2.76°F
(1.53°C)		 124th Coolest
Coolest since:
 1912
4th Warmest
Warmest since:
 2012
Oct 2016–Sep 2017
12-Month 		54.85°F
(12.69°C)		 52.02°F
(11.12°C)		 2.83°F
(1.57°C)		 125th Coolest
Coolest since:
 1912
3rd Warmest
Warmest since:
 2012
Apr 2016–Sep 2017
18-Month 		58.86°F
(14.92°C)		 56.37°F
(13.54°C)		 2.49°F
(1.38°C)		 125th Coolest
Coolest since:
 1917
3rd Warmest
Warmest since:
 2012
Oct 2015–Sep 2017
24-Month 		54.96°F
(12.76°C)		 52.02°F
(11.12°C)		 2.94°F
(1.64°C)		 126th Coolest
Coolest since:
 1913, 1918
1st Warmest
Warmest to Date
 2017
Oct 2014–Sep 2017
36-Month 		54.57°F
(12.54°C)		 52.01°F
(11.12°C)		 2.56°F
(1.42°C)		 124th Coolest
Coolest since:
 1917
2nd Warmest
Warmest to Date
 2018
Oct 2013–Sep 2017
48-Month 		53.92°F
(12.18°C)		 52.00°F
(11.11°C)		 1.92°F
(1.07°C)		 122nd Coolest
Coolest since:
 1918
3rd Warmest
Warmest to Date
 2018
Oct 2012–Sep 2017
60-Month 		53.75°F
(12.08°C)		 51.99°F
(11.11°C)		 1.76°F
(0.97°C)		 117th Coolest
Coolest since:
 1920
7th Warmest
Warmest since:
 2020

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