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

View Period (Months):
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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
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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