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 2007

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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 2007
1-Month
53.46°F
(11.92°C)
51.90°F
(11.06°C)
1.56°F
(0.86°C)
105th Coolest
Coolest since:
1918
24th Warmest
Warmest since:
2019
Aug–Sep 2007
2-Month
57.64°F
(14.24°C)
55.47°F
(13.04°C)
2.17°F
(1.20°C)
120th Coolest
Coolest since:
1974
9th Warmest
Warmest since:
2019
Jul–Sep 2007
3-Month
59.08°F
(15.04°C)
57.16°F
(13.98°C)
1.92°F
(1.06°C)
118th Coolest
Coolest since:
1924
11th Warmest
Warmest since:
2022
Jun–Sep 2007
4-Month
58.52°F
(14.73°C)
56.78°F
(13.77°C)
1.74°F
(0.96°C)
116th Coolest
Coolest since:
1903
13th Warmest
Warmest since:
2021
May–Sep 2007
5-Month
56.67°F
(13.71°C)
54.91°F
(12.73°C)
1.76°F
(0.98°C)
119th Coolest
Coolest since:
1907, 1924
10th Warmest
Warmest since:
2018
Ties: 2020
Apr–Sep 2007
6-Month
53.60°F
(12.00°C)
52.20°F
(11.22°C)
1.40°F
(0.78°C)
115th Coolest
Coolest since:
1907
14th Warmest
Warmest since:
2018
Ties: 2002
Mar–Sep 2007
7-Month
50.98°F
(10.54°C)
49.02°F
(9.46°C)
1.96°F
(1.08°C)
120th Coolest
Coolest since:
1917
9th Warmest
Warmest to Date
2012
Feb–Sep 2007
8-Month
47.35°F
(8.53°C)
45.75°F
(7.64°C)
1.60°F
(0.89°C)
118th Coolest
Coolest since:
1917
11th Warmest
Warmest since:
2012
Jan–Sep 2007
9-Month
44.46°F
(6.92°C)
42.86°F
(6.03°C)
1.60°F
(0.89°C)
113th Coolest
Coolest since:
1917
16th Warmest
Warmest since:
2012
Dec 2006–Sep 2007
10-Month
42.62°F
(5.90°C)
40.84°F
(4.91°C)
1.78°F
(0.99°C)
115th Coolest
Coolest since:
1917
13th Warmest
Warmest since:
2016
Nov 2006–Sep 2007
11-Month
41.71°F
(5.39°C)
39.92°F
(4.40°C)
1.79°F
(0.99°C)
114th Coolest
Coolest since:
1917
14th Warmest
Warmest since:
2016
Oct 2006–Sep 2007
12-Month
41.61°F
(5.34°C)
40.05°F
(4.47°C)
1.56°F
(0.87°C)
113th Coolest
Coolest since:
1917
15th Warmest
Warmest since:
2016
Apr 2006–Sep 2007
18-Month
45.69°F
(7.61°C)
44.09°F
(6.72°C)
1.60°F
(0.89°C)
116th Coolest
Coolest since:
1917
12th Warmest
Warmest since:
2016
Ties: 2002
Oct 2005–Sep 2007
24-Month
41.84°F
(5.47°C)
40.04°F
(4.47°C)
1.80°F
(1.00°C)
116th Coolest
Coolest since:
1918
11th Warmest
Warmest since:
2017
Oct 2004–Sep 2007
36-Month
41.93°F
(5.52°C)
40.02°F
(4.46°C)
1.91°F
(1.06°C)
120th Coolest
Coolest since:
1918
6th Warmest
Warmest since:
2017, 2018
Oct 2003–Sep 2007
48-Month
41.79°F
(5.44°C)
40.01°F
(4.45°C)
1.78°F
(0.99°C)
118th Coolest
Coolest since:
1918
7th Warmest
Warmest to Date
2018
Oct 2002–Sep 2007
60-Month
41.66°F
(5.37°C)
40.00°F
(4.44°C)
1.66°F
(0.93°C)
114th Coolest
Coolest since:
1920
10th Warmest
Warmest since:
2019, 2020

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