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 1973

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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 1973
1-Month
52.45°F
(11.36°C)
51.90°F
(11.06°C)
0.55°F
(0.30°C)
75th Coolest
Coolest since:
1918
54th Warmest
Warmest since:
2019
Aug–Sep 1973
2-Month
55.96°F
(13.31°C)
55.48°F
(13.04°C)
0.48°F
(0.27°C)
77th Coolest
Coolest since:
1974
52nd Warmest
Warmest since:
2019
Jul–Sep 1973
3-Month
57.41°F
(14.12°C)
57.16°F
(13.98°C)
0.25°F
(0.14°C)
63rd Coolest
Coolest since:
1924
66th Warmest
Warmest since:
2022
Jun–Sep 1973
4-Month
57.08°F
(13.93°C)
56.78°F
(13.77°C)
0.30°F
(0.16°C)
68th Coolest
Coolest since:
1903
61st Warmest
Warmest since:
2021
Ties: 1941
May–Sep 1973
5-Month
54.91°F
(12.73°C)
54.91°F
(12.73°C)
0.00°F
(0.00°C)
53rd Coolest
Coolest since:
1907, 1924
76th Warmest
Warmest since:
2018
Ties: 1944
Apr–Sep 1973
6-Month
52.00°F
(11.11°C)
52.20°F
(11.22°C)
-0.20°F
(-0.11°C)
43rd Coolest
Coolest since:
1907
86th Warmest
Warmest since:
2018
Ties: 1935
Mar–Sep 1973
7-Month
49.47°F
(9.71°C)
49.02°F
(9.46°C)
0.45°F
(0.25°C)
84th Coolest
Coolest since:
1917
45th Warmest
Warmest since:
2012
Feb–Sep 1973
8-Month
46.18°F
(7.88°C)
45.75°F
(7.64°C)
0.43°F
(0.24°C)
82nd Coolest
Coolest since:
1917
47th Warmest
Warmest since:
2012
Jan–Sep 1973
9-Month
43.25°F
(6.25°C)
42.86°F
(6.03°C)
0.39°F
(0.22°C)
77th Coolest
Coolest since:
1917
52nd Warmest
Warmest since:
2012
Ties: 1980
Dec 1972–Sep 1973
10-Month
40.96°F
(4.98°C)
40.84°F
(4.91°C)
0.12°F
(0.07°C)
68th Coolest
Coolest since:
1917
60th Warmest
Warmest since:
2016
Nov 1972–Sep 1973
11-Month
40.00°F
(4.44°C)
39.91°F
(4.39°C)
0.09°F
(0.05°C)
69th Coolest
Coolest since:
1917
59th Warmest
Warmest since:
2016
Oct 1972–Sep 1973
12-Month
40.10°F
(4.50°C)
40.04°F
(4.47°C)
0.06°F
(0.03°C)
63rd Coolest
Coolest since:
1917
65th Warmest
Warmest since:
2016
Apr 1972–Sep 1973
18-Month
44.05°F
(6.69°C)
44.10°F
(6.72°C)
-0.05°F
(-0.03°C)
54th Coolest
Coolest since:
1917
74th Warmest
Warmest since:
2016
Oct 1971–Sep 1973
24-Month
40.18°F
(4.54°C)
40.04°F
(4.47°C)
0.14°F
(0.07°C)
69th Coolest
Coolest since:
1918
58th Warmest
Warmest since:
2017
Ties: 1931, 1940
Oct 1970–Sep 1973
36-Month
39.91°F
(4.39°C)
40.02°F
(4.46°C)
-0.11°F
(-0.07°C)
50th Coolest
Coolest since:
1918
76th Warmest
Warmest since:
2017, 2018
Oct 1969–Sep 1973
48-Month
39.84°F
(4.36°C)
40.01°F
(4.45°C)
-0.17°F
(-0.09°C)
43rd Coolest
Coolest since:
1918
82nd Warmest
Warmest since:
2018
Oct 1968–Sep 1973
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: 1981

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