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 1917

View Period (Months):
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1917
1-Month
64.09°F
(17.83°C)
64.86°F
(18.26°C)
-0.77°F
(-0.43°C)
31st Coolest
Coolest since:
1965
98th Warmest
Warmest since:
1998
Ties: 1951
Aug–Sep 1917
2-Month
67.55°F
(19.75°C)
68.47°F
(20.26°C)
-0.92°F
(-0.51°C)
19th Coolest
Coolest since:
1974
110th Warmest
Warmest since:
1998
Jul–Sep 1917
3-Month
69.91°F
(21.06°C)
70.19°F
(21.22°C)
-0.28°F
(-0.16°C)
43rd Coolest
Coolest since:
1950
86th Warmest
Warmest since:
2022
Jun–Sep 1917
4-Month
69.17°F
(20.65°C)
69.76°F
(20.98°C)
-0.59°F
(-0.33°C)
29th Coolest
Coolest since:
1903
100th Warmest
Warmest since:
2022
May–Sep 1917
5-Month
66.36°F
(19.09°C)
67.85°F
(19.92°C)
-1.49°F
(-0.83°C)
4th Coolest
Coolest since:
1907
125th Warmest
Warmest since:
2018
Apr–Sep 1917
6-Month
63.41°F
(17.45°C)
65.05°F
(18.36°C)
-1.64°F
(-0.91°C)
2nd Coolest
Coolest since:
1907
127th Warmest
Warmest since:
2012
Mar–Sep 1917
7-Month
59.83°F
(15.46°C)
61.69°F
(16.49°C)
-1.86°F
(-1.03°C)
2nd Coolest
Coolest since:
1912
127th Warmest
Warmest since:
2012
Feb–Sep 1917
8-Month
56.11°F
(13.39°C)
58.20°F
(14.56°C)
-2.09°F
(-1.17°C)
1st Coolest
Coolest since:
1917
128th Warmest
Warmest since:
2012
Jan–Sep 1917
9-Month
53.02°F
(11.68°C)
55.09°F
(12.83°C)
-2.07°F
(-1.15°C)
2nd Coolest
Coolest since:
1912
127th Warmest
Warmest since:
2012
Dec 1916–Sep 1917
10-Month
50.61°F
(10.34°C)
52.85°F
(11.58°C)
-2.24°F
(-1.24°C)
1st Coolest
Coolest since:
1917
127th Warmest
Warmest since:
2012
Nov 1916–Sep 1917
11-Month
49.67°F
(9.82°C)
51.84°F
(11.02°C)
-2.17°F
(-1.20°C)
2nd Coolest
Coolest since:
1912
126th Warmest
Warmest since:
2012
Oct 1916–Sep 1917
12-Month
49.87°F
(9.93°C)
52.03°F
(11.13°C)
-2.16°F
(-1.20°C)
2nd Coolest
Coolest since:
1912
126th Warmest
Warmest since:
2012
Apr 1916–Sep 1917
18-Month
54.66°F
(12.59°C)
56.36°F
(13.53°C)
-1.70°F
(-0.94°C)
1st Coolest
Coolest since:
1917
127th Warmest
Warmest since:
2012
Oct 1915–Sep 1917
24-Month
50.79°F
(10.44°C)
52.02°F
(11.12°C)
-1.23°F
(-0.68°C)
3rd Coolest
Coolest since:
1913, 1918
124th Warmest
Warmest since:
2017
Oct 1914–Sep 1917
36-Month
50.84°F
(10.47°C)
52.01°F
(11.12°C)
-1.17°F
(-0.65°C)
1st Coolest
Coolest since:
1917
125th Warmest
Warmest since:
2018
Oct 1913–Sep 1917
48-Month
51.18°F
(10.66°C)
51.99°F
(11.11°C)
-0.81°F
(-0.45°C)
6th Coolest
Coolest since:
1918
119th Warmest
Warmest since:
2018
Oct 1912–Sep 1917
60-Month
51.23°F
(10.68°C)
51.99°F
(11.11°C)
-0.76°F
(-0.43°C)
5th Coolest
Coolest since:
1920
119th Warmest
Warmest since:
2020
Ties: 1906, 1919

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