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 1895

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1895
1-Month
52.38°F
(11.32°C)
51.90°F
(11.06°C)
0.48°F
(0.26°C)
71st Coolest
Coolest since:
1918
58th Warmest
Warmest to Date
2019
Aug–Sep 1895
2-Month
55.35°F
(12.97°C)
55.48°F
(13.04°C)
-0.13°F
(-0.07°C)
46th Coolest
Coolest since:
1974
83rd Warmest
Warmest to Date
2019
Ties: 1948
Jul–Sep 1895
3-Month
56.42°F
(13.57°C)
57.17°F
(13.98°C)
-0.75°F
(-0.41°C)
21st Coolest
Coolest since:
1924
108th Warmest
Warmest to Date
2022
Jun–Sep 1895
4-Month
55.99°F
(13.33°C)
56.78°F
(13.77°C)
-0.79°F
(-0.44°C)
18th Coolest
Coolest since:
1903
111th Warmest
Warmest to Date
2021
May–Sep 1895
5-Month
54.20°F
(12.33°C)
54.91°F
(12.73°C)
-0.71°F
(-0.40°C)
18th Coolest
Coolest since:
1907, 1924
111th Warmest
Warmest to Date
2018
Apr–Sep 1895
6-Month
51.74°F
(10.97°C)
52.19°F
(11.22°C)
-0.45°F
(-0.25°C)
24th Coolest
Coolest since:
1907
105th Warmest
Warmest to Date
2018
Ties: 1956
Mar–Sep 1895
7-Month
48.33°F
(9.07°C)
49.02°F
(9.46°C)
-0.69°F
(-0.39°C)
17th Coolest
Coolest since:
1917
112th Warmest
Warmest to Date
2012
Ties: 1923, 1976
Feb–Sep 1895
8-Month
44.24°F
(6.80°C)
45.75°F
(7.64°C)
-1.51°F
(-0.84°C)
3rd Coolest
Coolest since:
1917
126th Warmest
Warmest to Date
2012
Jan–Sep 1895
9-Month
41.16°F
(5.09°C)
42.86°F
(6.03°C)
-1.70°F
(-0.94°C)
4th Coolest
Coolest since:
1917
125th Warmest
Warmest to Date
2012

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