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 1977

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  • Top 1/3
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1977
1-Month
77.77°F
(25.43°C)
77.81°F
(25.45°C)
-0.04°F
(-0.02°C)
57th Coolest
Coolest since:
1965
72nd Warmest
Warmest since:
1998
Aug–Sep 1977
2-Month
80.90°F
(27.17°C)
81.48°F
(27.49°C)
-0.58°F
(-0.32°C)
38th Coolest
Coolest since:
1965
91st Warmest
Warmest since:
1998
Jul–Sep 1977
3-Month
83.09°F
(28.38°C)
83.20°F
(28.44°C)
-0.11°F
(-0.06°C)
56th Coolest
Coolest since:
1912
73rd Warmest
Warmest since:
1936
Jun–Sep 1977
4-Month
83.21°F
(28.45°C)
82.74°F
(28.19°C)
0.47°F
(0.26°C)
77th Coolest
Coolest since:
1915
52nd Warmest
Warmest since:
1936
May–Sep 1977
5-Month
81.39°F
(27.44°C)
80.79°F
(27.11°C)
0.60°F
(0.33°C)
82nd Coolest
Coolest since:
1915
47th Warmest
Warmest since:
1936
Apr–Sep 1977
6-Month
79.09°F
(26.16°C)
77.90°F
(25.50°C)
1.19°F
(0.66°C)
103rd Coolest
Coolest since:
1907
26th Warmest
Warmest since:
2012
Mar–Sep 1977
7-Month
75.64°F
(24.24°C)
74.34°F
(23.52°C)
1.30°F
(0.72°C)
109th Coolest
Coolest since:
1912
20th Warmest
Warmest since:
2012
Ties: 2010
Feb–Sep 1977
8-Month
72.25°F
(22.36°C)
70.66°F
(21.48°C)
1.59°F
(0.88°C)
113th Coolest
Coolest since:
1912
16th Warmest
Warmest since:
2012
Jan–Sep 1977
9-Month
67.96°F
(19.98°C)
67.30°F
(19.61°C)
0.66°F
(0.37°C)
84th Coolest
Coolest since:
1912
45th Warmest
Warmest since:
2012
Dec 1976–Sep 1977
10-Month
65.48°F
(18.60°C)
64.85°F
(18.25°C)
0.63°F
(0.35°C)
85th Coolest
Coolest since:
1912
43rd Warmest
Warmest since:
2012
Ties: 1952
Nov 1976–Sep 1977
11-Month
64.13°F
(17.85°C)
63.76°F
(17.64°C)
0.37°F
(0.21°C)
74th Coolest
Coolest since:
1912
54th Warmest
Warmest since:
2012
Ties: 1974
Oct 1976–Sep 1977
12-Month
64.01°F
(17.78°C)
64.01°F
(17.78°C)
0.00°F
(0.00°C)
54th Coolest
Coolest since:
1912
74th Warmest
Warmest since:
2012
Ties: 2010
Apr 1976–Sep 1977
18-Month
68.50°F
(20.28°C)
68.64°F
(20.36°C)
-0.14°F
(-0.08°C)
46th Coolest
Coolest since:
1912
82nd Warmest
Warmest since:
2012
Ties: 1972
Oct 1975–Sep 1977
24-Month
64.45°F
(18.03°C)
64.00°F
(17.78°C)
0.45°F
(0.25°C)
85th Coolest
Coolest since:
1913
42nd Warmest
Warmest since:
2017
Oct 1974–Sep 1977
36-Month
63.96°F
(17.76°C)
63.98°F
(17.77°C)
-0.02°F
(-0.01°C)
52nd Coolest
Coolest since:
1917
74th Warmest
Warmest since:
2018
Ties: 1925
Oct 1973–Sep 1977
48-Month
64.10°F
(17.83°C)
63.97°F
(17.76°C)
0.13°F
(0.07°C)
67th Coolest
Coolest since:
1915
58th Warmest
Warmest since:
2018
Oct 1972–Sep 1977
60-Month
63.78°F
(17.66°C)
63.96°F
(17.76°C)
-0.18°F
(-0.10°C)
40th Coolest
Coolest since:
1907
84th Warmest
Warmest since:
2016

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