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 1907

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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 1907
1-Month
51.31°F
(10.73°C)
51.90°F
(11.06°C)
-0.59°F
(-0.33°C)
38th Coolest
Coolest since:
1918
91st Warmest
Warmest since:
2019
Aug–Sep 1907
2-Month
54.64°F
(12.58°C)
55.48°F
(13.04°C)
-0.84°F
(-0.46°C)
22nd Coolest
Coolest since:
1974
107th Warmest
Warmest since:
2019
Jul–Sep 1907
3-Month
56.35°F
(13.53°C)
57.17°F
(13.98°C)
-0.82°F
(-0.45°C)
18th Coolest
Coolest since:
1924
111th Warmest
Warmest since:
2022
Ties: 1968
Jun–Sep 1907
4-Month
55.56°F
(13.09°C)
56.78°F
(13.77°C)
-1.22°F
(-0.68°C)
7th Coolest
Coolest since:
1903
122nd Warmest
Warmest since:
2021
May–Sep 1907
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: 1924
Apr–Sep 1907
6-Month
50.24°F
(10.13°C)
52.20°F
(11.22°C)
-1.96°F
(-1.09°C)
1st Coolest
Coolest since:
1907
128th Warmest
Warmest since:
2018
Mar–Sep 1907
7-Month
47.96°F
(8.87°C)
49.02°F
(9.46°C)
-1.06°F
(-0.59°C)
7th Coolest
Coolest since:
1917
122nd Warmest
Warmest since:
2012
Feb–Sep 1907
8-Month
44.94°F
(7.19°C)
45.74°F
(7.63°C)
-0.80°F
(-0.44°C)
18th Coolest
Coolest since:
1917
111th Warmest
Warmest since:
2012
Ties: 1960
Jan–Sep 1907
9-Month
42.28°F
(5.71°C)
42.86°F
(6.03°C)
-0.58°F
(-0.32°C)
25th Coolest
Coolest since:
1917
104th Warmest
Warmest since:
2012
Ties: 1975
Dec 1906–Sep 1907
10-Month
40.62°F
(4.79°C)
40.84°F
(4.91°C)
-0.22°F
(-0.12°C)
42nd Coolest
Coolest since:
1917
86th Warmest
Warmest since:
2016
Ties: 1944
Nov 1906–Sep 1907
11-Month
39.67°F
(4.26°C)
39.92°F
(4.40°C)
-0.25°F
(-0.14°C)
37th Coolest
Coolest since:
1917
91st Warmest
Warmest since:
2016
Ties: 1975, 1982
Oct 1906–Sep 1907
12-Month
39.70°F
(4.28°C)
40.04°F
(4.47°C)
-0.34°F
(-0.19°C)
34th Coolest
Coolest since:
1917
94th Warmest
Warmest since:
2016
Ties: 1896
Apr 1906–Sep 1907
18-Month
43.96°F
(6.64°C)
44.10°F
(6.72°C)
-0.14°F
(-0.08°C)
45th Coolest
Coolest since:
1917
83rd Warmest
Warmest since:
2016
Ties: 1933
Oct 1905–Sep 1907
24-Month
39.73°F
(4.29°C)
40.04°F
(4.47°C)
-0.31°F
(-0.18°C)
37th Coolest
Coolest since:
1918
90th Warmest
Warmest since:
2017
Oct 1904–Sep 1907
36-Month
39.67°F
(4.26°C)
40.02°F
(4.46°C)
-0.35°F
(-0.20°C)
27th Coolest
Coolest since:
1918
99th Warmest
Warmest since:
2017, 2018
Ties: 1900
Oct 1903–Sep 1907
48-Month
39.39°F
(4.11°C)
40.01°F
(4.45°C)
-0.62°F
(-0.34°C)
9th Coolest
Coolest since:
1918
116th Warmest
Warmest since:
2018
Oct 1902–Sep 1907
60-Month
39.40°F
(4.11°C)
40.00°F
(4.44°C)
-0.60°F
(-0.33°C)
7th Coolest
Coolest since:
1920
117th Warmest
Warmest since:
2019, 2020

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