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 1945

View Period (Months):
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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 1945
1-Month
52.03°F
(11.13°C)
51.90°F
(11.06°C)
0.13°F
(0.07°C)
56th Coolest
Coolest since:
1918
73rd Warmest
Warmest since:
2019
Aug–Sep 1945
2-Month
55.54°F
(13.08°C)
55.48°F
(13.04°C)
0.06°F
(0.04°C)
60th Coolest
Coolest since:
1974
69th Warmest
Warmest since:
2019
Jul–Sep 1945
3-Month
56.95°F
(13.86°C)
57.17°F
(13.98°C)
-0.22°F
(-0.12°C)
41st Coolest
Coolest since:
1924
88th Warmest
Warmest since:
2022
Jun–Sep 1945
4-Month
56.08°F
(13.38°C)
56.78°F
(13.77°C)
-0.70°F
(-0.39°C)
23rd Coolest
Coolest since:
1903
106th Warmest
Warmest since:
2021
May–Sep 1945
5-Month
53.94°F
(12.19°C)
54.91°F
(12.73°C)
-0.97°F
(-0.54°C)
9th Coolest
Coolest since:
1907, 1924
120th Warmest
Warmest since:
2018
Apr–Sep 1945
6-Month
51.26°F
(10.70°C)
52.19°F
(11.22°C)
-0.93°F
(-0.52°C)
9th Coolest
Coolest since:
1907
120th Warmest
Warmest since:
2018
Mar–Sep 1945
7-Month
48.73°F
(9.29°C)
49.02°F
(9.46°C)
-0.29°F
(-0.17°C)
37th Coolest
Coolest since:
1917
92nd Warmest
Warmest since:
2012
Feb–Sep 1945
8-Month
45.74°F
(7.63°C)
45.75°F
(7.64°C)
-0.01°F
(-0.01°C)
58th Coolest
Coolest since:
1917
71st Warmest
Warmest since:
2012
Jan–Sep 1945
9-Month
42.94°F
(6.08°C)
42.86°F
(6.03°C)
0.08°F
(0.05°C)
65th Coolest
Coolest since:
1917
64th Warmest
Warmest since:
2012
Dec 1944–Sep 1945
10-Month
40.70°F
(4.83°C)
40.83°F
(4.91°C)
-0.13°F
(-0.08°C)
47th Coolest
Coolest since:
1917
81st Warmest
Warmest since:
2016
Nov 1944–Sep 1945
11-Month
39.92°F
(4.40°C)
39.91°F
(4.39°C)
0.01°F
(0.01°C)
60th Coolest
Coolest since:
1917
68th Warmest
Warmest since:
2016
Oct 1944–Sep 1945
12-Month
40.03°F
(4.46°C)
40.04°F
(4.47°C)
-0.01°F
(-0.01°C)
56th Coolest
Coolest since:
1917
72nd Warmest
Warmest since:
2016
Apr 1944–Sep 1945
18-Month
44.01°F
(6.67°C)
44.10°F
(6.72°C)
-0.09°F
(-0.05°C)
51st Coolest
Coolest since:
1917
77th Warmest
Warmest since:
2016
Ties: 1972
Oct 1943–Sep 1945
24-Month
39.83°F
(4.35°C)
40.04°F
(4.47°C)
-0.21°F
(-0.12°C)
44th Coolest
Coolest since:
1918
83rd Warmest
Warmest since:
2017
Ties: 1967
Oct 1942–Sep 1945
36-Month
39.86°F
(4.37°C)
40.02°F
(4.46°C)
-0.16°F
(-0.09°C)
45th Coolest
Coolest since:
1918
81st Warmest
Warmest since:
2017, 2018
Oct 1941–Sep 1945
48-Month
39.98°F
(4.43°C)
40.01°F
(4.45°C)
-0.03°F
(-0.02°C)
53rd Coolest
Coolest since:
1918
72nd Warmest
Warmest since:
2018
Oct 1940–Sep 1945
60-Month
40.16°F
(4.53°C)
40.00°F
(4.44°C)
0.16°F
(0.09°C)
71st Coolest
Coolest since:
1920
53rd Warmest
Warmest since:
2019, 2020

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