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.

Minimum Temperature Rankings, September 1981

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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 1981
1-Month
51.76°F
(10.98°C)
51.90°F
(11.06°C)
-0.14°F
(-0.08°C)
48th Coolest
Coolest since:
1918
81st Warmest
Warmest since:
2019
Aug–Sep 1981
2-Month
55.50°F
(13.06°C)
55.47°F
(13.04°C)
0.03°F
(0.02°C)
55th Coolest
Coolest since:
1974
74th Warmest
Warmest since:
2019
Ties: 1961
Jul–Sep 1981
3-Month
57.46°F
(14.14°C)
57.17°F
(13.98°C)
0.29°F
(0.16°C)
67th Coolest
Coolest since:
1924
62nd Warmest
Warmest since:
2022
Jun–Sep 1981
4-Month
57.43°F
(14.13°C)
56.78°F
(13.77°C)
0.65°F
(0.36°C)
88th Coolest
Coolest since:
1903
41st Warmest
Warmest since:
2021
Ties: 2008
May–Sep 1981
5-Month
55.32°F
(12.96°C)
54.92°F
(12.73°C)
0.40°F
(0.23°C)
80th Coolest
Coolest since:
1907, 1924
49th Warmest
Warmest since:
2018
Apr–Sep 1981
6-Month
53.16°F
(11.76°C)
52.20°F
(11.22°C)
0.96°F
(0.54°C)
102nd Coolest
Coolest since:
1907
27th Warmest
Warmest since:
2018
Mar–Sep 1981
7-Month
50.00°F
(10.00°C)
49.02°F
(9.46°C)
0.98°F
(0.54°C)
101st Coolest
Coolest since:
1917
28th Warmest
Warmest since:
2012
Ties: 1934, 1987
Feb–Sep 1981
8-Month
46.84°F
(8.24°C)
45.75°F
(7.64°C)
1.09°F
(0.60°C)
102nd Coolest
Coolest since:
1917
27th Warmest
Warmest since:
2012
Ties: 1999
Jan–Sep 1981
9-Month
44.00°F
(6.67°C)
42.86°F
(6.03°C)
1.14°F
(0.64°C)
101st Coolest
Coolest since:
1917
28th Warmest
Warmest since:
2012
Dec 1980–Sep 1981
10-Month
42.02°F
(5.57°C)
40.84°F
(4.91°C)
1.18°F
(0.66°C)
100th Coolest
Coolest since:
1917
28th Warmest
Warmest since:
2016
Nov 1980–Sep 1981
11-Month
41.02°F
(5.01°C)
39.92°F
(4.40°C)
1.10°F
(0.61°C)
99th Coolest
Coolest since:
1917
29th Warmest
Warmest since:
2016
Oct 1980–Sep 1981
12-Month
40.89°F
(4.94°C)
40.04°F
(4.47°C)
0.85°F
(0.47°C)
96th Coolest
Coolest since:
1917
32nd Warmest
Warmest since:
2016
Apr 1980–Sep 1981
18-Month
44.86°F
(7.14°C)
44.10°F
(6.72°C)
0.76°F
(0.42°C)
97th Coolest
Coolest since:
1917
31st Warmest
Warmest since:
2016
Oct 1979–Sep 1981
24-Month
40.67°F
(4.82°C)
40.04°F
(4.47°C)
0.63°F
(0.35°C)
93rd Coolest
Coolest since:
1918
34th Warmest
Warmest since:
2017
Ties: 2014
Oct 1978–Sep 1981
36-Month
39.99°F
(4.44°C)
40.02°F
(4.46°C)
-0.03°F
(-0.02°C)
58th Coolest
Coolest since:
1918
68th Warmest
Warmest since:
2017, 2018
Oct 1977–Sep 1981
48-Month
39.95°F
(4.42°C)
40.01°F
(4.45°C)
-0.06°F
(-0.03°C)
51st Coolest
Coolest since:
1918
74th Warmest
Warmest since:
2018
Ties: 1947
Oct 1976–Sep 1981
60-Month
39.82°F
(4.34°C)
40.00°F
(4.44°C)
-0.18°F
(-0.10°C)
41st Coolest
Coolest since:
1920
83rd Warmest
Warmest since:
2019, 2020
Ties: 1973

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