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 1924

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  • Record Coolest
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  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1924
1-Month
49.39°F
(9.66°C)
51.90°F
(11.06°C)
-2.51°F
(-1.40°C)
3rd Coolest
Coolest since:
1918
126th Warmest
Warmest since:
2019
Aug–Sep 1924
2-Month
53.84°F
(12.13°C)
55.47°F
(13.04°C)
-1.63°F
(-0.91°C)
2nd Coolest
Coolest since:
1974
127th Warmest
Warmest since:
2019
Jul–Sep 1924
3-Month
55.35°F
(12.97°C)
57.16°F
(13.98°C)
-1.81°F
(-1.01°C)
1st Coolest
Coolest since:
1924
128th Warmest
Warmest since:
2022
Jun–Sep 1924
4-Month
55.33°F
(12.96°C)
56.78°F
(13.77°C)
-1.45°F
(-0.81°C)
2nd Coolest
Coolest since:
1903
127th Warmest
Warmest since:
2021
May–Sep 1924
5-Month
53.17°F
(11.76°C)
54.91°F
(12.73°C)
-1.74°F
(-0.97°C)
1st Coolest
Coolest since:
1907, 1924
128th Warmest
Warmest since:
2018
Ties: 1907
Apr–Sep 1924
6-Month
50.60°F
(10.33°C)
52.20°F
(11.22°C)
-1.60°F
(-0.89°C)
3rd Coolest
Coolest since:
1907
126th Warmest
Warmest since:
2018
Mar–Sep 1924
7-Month
47.25°F
(8.47°C)
49.03°F
(9.46°C)
-1.78°F
(-0.99°C)
2nd Coolest
Coolest since:
1917
127th Warmest
Warmest since:
2012
Feb–Sep 1924
8-Month
44.37°F
(6.87°C)
45.75°F
(7.64°C)
-1.38°F
(-0.77°C)
5th Coolest
Coolest since:
1917
124th Warmest
Warmest since:
2012
Jan–Sep 1924
9-Month
41.09°F
(5.05°C)
42.86°F
(6.03°C)
-1.77°F
(-0.98°C)
3rd Coolest
Coolest since:
1917
126th Warmest
Warmest since:
2012
Dec 1923–Sep 1924
10-Month
39.61°F
(4.23°C)
40.83°F
(4.91°C)
-1.22°F
(-0.68°C)
7th Coolest
Coolest since:
1917
121st Warmest
Warmest since:
2016
Ties: 1918
Nov 1923–Sep 1924
11-Month
38.88°F
(3.82°C)
39.92°F
(4.40°C)
-1.04°F
(-0.58°C)
9th Coolest
Coolest since:
1917
119th Warmest
Warmest since:
2016
Oct 1923–Sep 1924
12-Month
38.95°F
(3.86°C)
40.04°F
(4.47°C)
-1.09°F
(-0.61°C)
8th Coolest
Coolest since:
1917
120th Warmest
Warmest since:
2016
Apr 1923–Sep 1924
18-Month
43.31°F
(6.28°C)
44.09°F
(6.72°C)
-0.78°F
(-0.44°C)
9th Coolest
Coolest since:
1917
119th Warmest
Warmest since:
2016
Ties: 1979
Oct 1922–Sep 1924
24-Month
39.36°F
(4.09°C)
40.03°F
(4.46°C)
-0.67°F
(-0.37°C)
9th Coolest
Coolest since:
1918
118th Warmest
Warmest since:
2017
Oct 1921–Sep 1924
36-Month
39.59°F
(4.22°C)
40.02°F
(4.46°C)
-0.43°F
(-0.24°C)
18th Coolest
Coolest since:
1918
108th Warmest
Warmest since:
2017, 2018
Ties: 1966
Oct 1920–Sep 1924
48-Month
40.07°F
(4.48°C)
40.01°F
(4.45°C)
0.06°F
(0.03°C)
63rd Coolest
Coolest since:
1918
62nd Warmest
Warmest since:
2018
Oct 1919–Sep 1924
60-Month
39.83°F
(4.35°C)
40.00°F
(4.44°C)
-0.17°F
(-0.09°C)
43rd Coolest
Coolest since:
1920
81st Warmest
Warmest since:
2019, 2020
Ties: 1927

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