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 1952

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1952
1-Month
51.37°F
(10.76°C)
51.90°F
(11.06°C)
-0.53°F
(-0.30°C)
40th Coolest
Coolest since:
1918
89th Warmest
Warmest since:
2019
Aug–Sep 1952
2-Month
55.43°F
(13.02°C)
55.48°F
(13.04°C)
-0.05°F
(-0.02°C)
51st Coolest
Coolest since:
1974
78th Warmest
Warmest since:
2019
Jul–Sep 1952
3-Month
57.07°F
(13.93°C)
57.16°F
(13.98°C)
-0.09°F
(-0.05°C)
51st Coolest
Coolest since:
1924
78th Warmest
Warmest since:
2022
Jun–Sep 1952
4-Month
57.16°F
(13.98°C)
56.77°F
(13.76°C)
0.39°F
(0.22°C)
75th Coolest
Coolest since:
1903
54th Warmest
Warmest since:
2021
Ties: 1978
May–Sep 1952
5-Month
55.22°F
(12.90°C)
54.91°F
(12.73°C)
0.31°F
(0.17°C)
69th Coolest
Coolest since:
1907, 1924
60th Warmest
Warmest since:
2018
Apr–Sep 1952
6-Month
52.48°F
(11.38°C)
52.19°F
(11.22°C)
0.29°F
(0.16°C)
69th Coolest
Coolest since:
1907
60th Warmest
Warmest since:
2018
Mar–Sep 1952
7-Month
48.86°F
(9.37°C)
49.02°F
(9.46°C)
-0.16°F
(-0.09°C)
43rd Coolest
Coolest since:
1917
86th Warmest
Warmest since:
2012
Ties: 1927, 1961
Feb–Sep 1952
8-Month
45.84°F
(7.69°C)
45.75°F
(7.64°C)
0.09°F
(0.05°C)
64th Coolest
Coolest since:
1917
65th Warmest
Warmest since:
2012
Jan–Sep 1952
9-Month
43.16°F
(6.20°C)
42.86°F
(6.03°C)
0.30°F
(0.17°C)
73rd Coolest
Coolest since:
1917
56th Warmest
Warmest since:
2012
Dec 1951–Sep 1952
10-Month
40.95°F
(4.97°C)
40.84°F
(4.91°C)
0.11°F
(0.06°C)
67th Coolest
Coolest since:
1917
61st Warmest
Warmest since:
2016
Ties: 1974
Nov 1951–Sep 1952
11-Month
39.70°F
(4.28°C)
39.92°F
(4.40°C)
-0.22°F
(-0.12°C)
41st Coolest
Coolest since:
1917
87th Warmest
Warmest since:
2016
Ties: 1930
Oct 1951–Sep 1952
12-Month
39.89°F
(4.38°C)
40.04°F
(4.47°C)
-0.15°F
(-0.09°C)
48th Coolest
Coolest since:
1917
80th Warmest
Warmest since:
2016
Apr 1951–Sep 1952
18-Month
43.76°F
(6.53°C)
44.09°F
(6.72°C)
-0.33°F
(-0.19°C)
31st Coolest
Coolest since:
1917
97th Warmest
Warmest since:
2016
Ties: 1930
Oct 1950–Sep 1952
24-Month
39.67°F
(4.26°C)
40.04°F
(4.47°C)
-0.37°F
(-0.21°C)
31st Coolest
Coolest since:
1918
96th Warmest
Warmest since:
2017
Oct 1949–Sep 1952
36-Month
39.55°F
(4.19°C)
40.03°F
(4.46°C)
-0.48°F
(-0.27°C)
15th Coolest
Coolest since:
1918
111th Warmest
Warmest since:
2017, 2018
Ties: 1930
Oct 1948–Sep 1952
48-Month
39.54°F
(4.19°C)
40.01°F
(4.45°C)
-0.47°F
(-0.26°C)
15th Coolest
Coolest since:
1918
110th Warmest
Warmest since:
2018
Oct 1947–Sep 1952
60-Month
39.59°F
(4.22°C)
40.00°F
(4.44°C)
-0.41°F
(-0.22°C)
15th Coolest
Coolest since:
1920
109th Warmest
Warmest since:
2019, 2020
Ties: 1971

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