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 2018

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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 2018
1-Month
67.53°F
(19.74°C)
64.86°F
(18.26°C)
2.67°F
(1.48°C)
121st Coolest
Coolest since:
1965
8th Warmest
Warmest since:
1998
Aug–Sep 2018
2-Month
70.52°F
(21.40°C)
68.48°F
(20.27°C)
2.04°F
(1.13°C)
121st Coolest
Coolest since:
1974
8th Warmest
Warmest since:
1998
Jul–Sep 2018
3-Month
72.16°F
(22.31°C)
70.19°F
(21.22°C)
1.97°F
(1.09°C)
121st Coolest
Coolest since:
1950
8th Warmest
Warmest since:
2022
Jun–Sep 2018
4-Month
72.01°F
(22.23°C)
69.76°F
(20.98°C)
2.25°F
(1.25°C)
125th Coolest
Coolest since:
1903
4th Warmest
Warmest since:
2022
May–Sep 2018
5-Month
70.71°F
(21.51°C)
67.85°F
(19.92°C)
2.86°F
(1.59°C)
128th Coolest
Coolest since:
1907
1st Warmest
Warmest to Date
2018
Apr–Sep 2018
6-Month
67.10°F
(19.50°C)
65.05°F
(18.36°C)
2.05°F
(1.14°C)
126th Coolest
Coolest since:
1907
3rd Warmest
Warmest since:
2012
Mar–Sep 2018
7-Month
63.62°F
(17.57°C)
61.69°F
(16.49°C)
1.93°F
(1.08°C)
120th Coolest
Coolest since:
1912
9th Warmest
Warmest since:
2012
Feb–Sep 2018
8-Month
60.10°F
(15.61°C)
58.20°F
(14.56°C)
1.90°F
(1.05°C)
124th Coolest
Coolest since:
1917
5th Warmest
Warmest since:
2012
Jan–Sep 2018
9-Month
57.00°F
(13.89°C)
55.08°F
(12.82°C)
1.92°F
(1.07°C)
120th Coolest
Coolest since:
1912
9th Warmest
Warmest since:
2012
Dec 2017–Sep 2018
10-Month
54.73°F
(12.63°C)
52.85°F
(11.58°C)
1.88°F
(1.05°C)
116th Coolest
Coolest since:
1917
12th Warmest
Warmest since:
2012
Nov 2017–Sep 2018
11-Month
53.85°F
(12.14°C)
51.84°F
(11.02°C)
2.01°F
(1.12°C)
117th Coolest
Coolest since:
1912
11th Warmest
Warmest since:
2012
Oct 2017–Sep 2018
12-Month
54.00°F
(12.22°C)
52.03°F
(11.13°C)
1.97°F
(1.09°C)
119th Coolest
Coolest since:
1912
9th Warmest
Warmest since:
2012
Apr 2017–Sep 2018
18-Month
58.15°F
(14.53°C)
56.37°F
(13.54°C)
1.78°F
(0.99°C)
119th Coolest
Coolest since:
1917
9th Warmest
Warmest since:
2012
Oct 2016–Sep 2018
24-Month
54.43°F
(12.46°C)
52.02°F
(11.12°C)
2.41°F
(1.34°C)
125th Coolest
Coolest since:
1913, 1918
2nd Warmest
Warmest since:
2017
Oct 2015–Sep 2018
36-Month
54.64°F
(12.58°C)
52.00°F
(11.11°C)
2.64°F
(1.47°C)
125th Coolest
Coolest since:
1917
1st Warmest
Warmest to Date
2018
Oct 2014–Sep 2018
48-Month
54.42°F
(12.46°C)
51.99°F
(11.11°C)
2.43°F
(1.35°C)
124th Coolest
Coolest since:
1918
1st Warmest
Warmest to Date
2018
Oct 2013–Sep 2018
60-Month
53.93°F
(12.18°C)
51.98°F
(11.10°C)
1.95°F
(1.08°C)
121st Coolest
Coolest since:
1920
3rd Warmest
Warmest to Date
2020

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