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 1997

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1997
1-Month
53.89°F
(12.16°C)
51.90°F
(11.06°C)
1.99°F
(1.10°C)
112th Coolest
Coolest since:
1918
17th Warmest
Warmest since:
2019
Aug–Sep 1997
2-Month
56.62°F
(13.68°C)
55.48°F
(13.04°C)
1.14°F
(0.64°C)
99th Coolest
Coolest since:
1974
30th Warmest
Warmest since:
2019
Jul–Sep 1997
3-Month
57.91°F
(14.39°C)
57.16°F
(13.98°C)
0.75°F
(0.41°C)
95th Coolest
Coolest since:
1924
34th Warmest
Warmest since:
2022
Jun–Sep 1997
4-Month
57.48°F
(14.16°C)
56.78°F
(13.77°C)
0.70°F
(0.39°C)
90th Coolest
Coolest since:
1903
39th Warmest
Warmest since:
2021
May–Sep 1997
5-Month
55.28°F
(12.93°C)
54.91°F
(12.73°C)
0.37°F
(0.20°C)
75th Coolest
Coolest since:
1907, 1924
54th Warmest
Warmest since:
2018
Apr–Sep 1997
6-Month
52.06°F
(11.14°C)
52.20°F
(11.22°C)
-0.14°F
(-0.08°C)
48th Coolest
Coolest since:
1907
81st Warmest
Warmest since:
2018
Mar–Sep 1997
7-Month
49.23°F
(9.57°C)
49.03°F
(9.46°C)
0.20°F
(0.11°C)
67th Coolest
Coolest since:
1917
62nd Warmest
Warmest since:
2012
Feb–Sep 1997
8-Month
46.33°F
(7.96°C)
45.75°F
(7.64°C)
0.58°F
(0.32°C)
87th Coolest
Coolest since:
1917
42nd Warmest
Warmest since:
2012
Jan–Sep 1997
9-Month
43.41°F
(6.34°C)
42.86°F
(6.03°C)
0.55°F
(0.31°C)
86th Coolest
Coolest since:
1917
43rd Warmest
Warmest since:
2012
Ties: 1946
Dec 1996–Sep 1997
10-Month
41.48°F
(5.27°C)
40.84°F
(4.91°C)
0.64°F
(0.36°C)
90th Coolest
Coolest since:
1917
38th Warmest
Warmest since:
2016
Nov 1996–Sep 1997
11-Month
40.41°F
(4.67°C)
39.91°F
(4.39°C)
0.50°F
(0.28°C)
86th Coolest
Coolest since:
1917
42nd Warmest
Warmest since:
2016
Oct 1996–Sep 1997
12-Month
40.48°F
(4.71°C)
40.04°F
(4.47°C)
0.44°F
(0.24°C)
84th Coolest
Coolest since:
1917
44th Warmest
Warmest since:
2016
Apr 1996–Sep 1997
18-Month
44.53°F
(6.96°C)
44.09°F
(6.72°C)
0.44°F
(0.24°C)
87th Coolest
Coolest since:
1917
41st Warmest
Warmest since:
2016
Ties: 1931, 2009
Oct 1995–Sep 1997
24-Month
40.29°F
(4.61°C)
40.04°F
(4.47°C)
0.25°F
(0.14°C)
75th Coolest
Coolest since:
1918
52nd Warmest
Warmest since:
2017
Oct 1994–Sep 1997
36-Month
40.68°F
(4.82°C)
40.02°F
(4.46°C)
0.66°F
(0.36°C)
95th Coolest
Coolest since:
1918
31st Warmest
Warmest since:
2017, 2018
Oct 1993–Sep 1997
48-Month
40.57°F
(4.76°C)
40.01°F
(4.45°C)
0.56°F
(0.31°C)
86th Coolest
Coolest since:
1918
39th Warmest
Warmest since:
2018
Ties: 1983
Oct 1992–Sep 1997
60-Month
40.45°F
(4.69°C)
40.00°F
(4.44°C)
0.45°F
(0.25°C)
85th Coolest
Coolest since:
1920
39th Warmest
Warmest since:
2019, 2020
Ties: 1936

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