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 1951

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1951
1-Month
77.43°F
(25.24°C)
77.81°F
(25.45°C)
-0.38°F
(-0.21°C)
47th Coolest
Coolest since:
1965
82nd Warmest
Warmest since:
1998
Ties: 1946
Aug–Sep 1951
2-Month
81.15°F
(27.31°C)
81.48°F
(27.49°C)
-0.33°F
(-0.18°C)
46th Coolest
Coolest since:
1965
83rd Warmest
Warmest since:
1998
Ties: 1914, 1929
Jul–Sep 1951
3-Month
83.07°F
(28.37°C)
83.21°F
(28.45°C)
-0.14°F
(-0.08°C)
54th Coolest
Coolest since:
1912
75th Warmest
Warmest since:
1936
Ties: 1929
Jun–Sep 1951
4-Month
82.13°F
(27.85°C)
82.74°F
(28.19°C)
-0.61°F
(-0.34°C)
31st Coolest
Coolest since:
1915
98th Warmest
Warmest since:
1936
May–Sep 1951
5-Month
80.51°F
(26.95°C)
80.78°F
(27.10°C)
-0.27°F
(-0.15°C)
48th Coolest
Coolest since:
1915
81st Warmest
Warmest since:
1936
Apr–Sep 1951
6-Month
77.43°F
(25.24°C)
77.90°F
(25.50°C)
-0.47°F
(-0.26°C)
36th Coolest
Coolest since:
1907
93rd Warmest
Warmest since:
2012
Mar–Sep 1951
7-Month
73.53°F
(23.07°C)
74.35°F
(23.53°C)
-0.82°F
(-0.46°C)
20th Coolest
Coolest since:
1912
109th Warmest
Warmest since:
2012
Feb–Sep 1951
8-Month
70.10°F
(21.17°C)
70.66°F
(21.48°C)
-0.56°F
(-0.31°C)
32nd Coolest
Coolest since:
1912
97th Warmest
Warmest since:
2012
Ties: 1973
Jan–Sep 1951
9-Month
66.88°F
(19.38°C)
67.30°F
(19.61°C)
-0.42°F
(-0.23°C)
39th Coolest
Coolest since:
1912
90th Warmest
Warmest since:
2012
Dec 1950–Sep 1951
10-Month
64.57°F
(18.09°C)
64.86°F
(18.26°C)
-0.29°F
(-0.17°C)
35th Coolest
Coolest since:
1912
93rd Warmest
Warmest since:
2012
Ties: 1918, 1937, 1970
Nov 1950–Sep 1951
11-Month
63.48°F
(17.49°C)
63.75°F
(17.64°C)
-0.27°F
(-0.15°C)
41st Coolest
Coolest since:
1912
87th Warmest
Warmest since:
2012
Oct 1950–Sep 1951
12-Month
64.09°F
(17.83°C)
64.01°F
(17.78°C)
0.08°F
(0.05°C)
61st Coolest
Coolest since:
1912
67th Warmest
Warmest since:
2012
Apr 1950–Sep 1951
18-Month
68.13°F
(20.07°C)
68.64°F
(20.36°C)
-0.51°F
(-0.29°C)
28th Coolest
Coolest since:
1912
100th Warmest
Warmest since:
2012
Oct 1949–Sep 1951
24-Month
63.91°F
(17.73°C)
64.00°F
(17.78°C)
-0.09°F
(-0.05°C)
52nd Coolest
Coolest since:
1913
75th Warmest
Warmest since:
2017
Ties: 1945
Oct 1948–Sep 1951
36-Month
63.82°F
(17.68°C)
63.98°F
(17.77°C)
-0.16°F
(-0.09°C)
43rd Coolest
Coolest since:
1917
83rd Warmest
Warmest since:
2018
Ties: 1994
Oct 1947–Sep 1951
48-Month
63.82°F
(17.68°C)
63.97°F
(17.76°C)
-0.15°F
(-0.08°C)
44th Coolest
Coolest since:
1915
81st Warmest
Warmest since:
2018
Ties: 1926, 1950, 1962
Oct 1946–Sep 1951
60-Month
63.87°F
(17.71°C)
63.96°F
(17.76°C)
-0.09°F
(-0.05°C)
48th Coolest
Coolest since:
1907
76th Warmest
Warmest since:
2016

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