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 1931

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1931
1-Month
81.25°F
(27.36°C)
77.81°F
(25.45°C)
3.44°F
(1.91°C)
124th Coolest
Coolest since:
1965
5th Warmest
Warmest since:
1998
Aug–Sep 1931
2-Month
83.22°F
(28.46°C)
81.47°F
(27.48°C)
1.75°F
(0.98°C)
107th Coolest
Coolest since:
1965
22nd Warmest
Warmest since:
1998
Jul–Sep 1931
3-Month
85.32°F
(29.62°C)
83.20°F
(28.44°C)
2.12°F
(1.18°C)
122nd Coolest
Coolest since:
1912
7th Warmest
Warmest to Date
1936
Jun–Sep 1931
4-Month
85.05°F
(29.47°C)
82.74°F
(28.19°C)
2.31°F
(1.28°C)
123rd Coolest
Coolest since:
1915
6th Warmest
Warmest to Date
1936
May–Sep 1931
5-Month
82.62°F
(28.12°C)
80.79°F
(27.11°C)
1.83°F
(1.01°C)
121st Coolest
Coolest since:
1915
8th Warmest
Warmest to Date
1936
Apr–Sep 1931
6-Month
79.53°F
(26.41°C)
77.90°F
(25.50°C)
1.63°F
(0.91°C)
119th Coolest
Coolest since:
1907
10th Warmest
Warmest to Date
2012
Mar–Sep 1931
7-Month
75.38°F
(24.10°C)
74.34°F
(23.52°C)
1.04°F
(0.58°C)
97th Coolest
Coolest since:
1912
32nd Warmest
Warmest since:
2012
Feb–Sep 1931
8-Month
72.02°F
(22.23°C)
70.65°F
(21.47°C)
1.37°F
(0.76°C)
107th Coolest
Coolest since:
1912
22nd Warmest
Warmest since:
2012
Jan–Sep 1931
9-Month
68.87°F
(20.48°C)
67.30°F
(19.61°C)
1.57°F
(0.87°C)
111th Coolest
Coolest since:
1912
18th Warmest
Warmest since:
2012
Dec 1930–Sep 1931
10-Month
66.08°F
(18.93°C)
64.85°F
(18.25°C)
1.23°F
(0.68°C)
105th Coolest
Coolest since:
1912
23rd Warmest
Warmest since:
2012
Nov 1930–Sep 1931
11-Month
64.84°F
(18.24°C)
63.76°F
(17.64°C)
1.08°F
(0.60°C)
101st Coolest
Coolest since:
1912
27th Warmest
Warmest since:
2012
Oct 1930–Sep 1931
12-Month
64.71°F
(18.17°C)
64.01°F
(17.78°C)
0.70°F
(0.39°C)
93rd Coolest
Coolest since:
1912
35th Warmest
Warmest since:
2012
Apr 1930–Sep 1931
18-Month
69.58°F
(20.88°C)
68.63°F
(20.35°C)
0.95°F
(0.53°C)
104th Coolest
Coolest since:
1912
24th Warmest
Warmest to Date
2012
Ties: 2008
Oct 1929–Sep 1931
24-Month
64.61°F
(18.12°C)
64.00°F
(17.78°C)
0.61°F
(0.34°C)
89th Coolest
Coolest since:
1913
38th Warmest
Warmest since:
2017
Oct 1928–Sep 1931
36-Month
64.10°F
(17.83°C)
63.98°F
(17.77°C)
0.12°F
(0.06°C)
67th Coolest
Coolest since:
1917
59th Warmest
Warmest since:
2018
Oct 1927–Sep 1931
48-Month
64.07°F
(17.82°C)
63.97°F
(17.76°C)
0.10°F
(0.06°C)
65th Coolest
Coolest since:
1915
60th Warmest
Warmest since:
2018
Ties: 1949
Oct 1926–Sep 1931
60-Month
63.97°F
(17.76°C)
63.96°F
(17.76°C)
0.01°F
(0.00°C)
59th Coolest
Coolest since:
1907
65th Warmest
Warmest since:
2016

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