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 2017

View Period (Months):
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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 2017
1-Month
53.76°F
(12.09°C)
51.90°F
(11.06°C)
1.86°F
(1.03°C)
109th Coolest
Coolest since:
1918
20th Warmest
Warmest since:
2019
Aug–Sep 2017
2-Month
56.76°F
(13.76°C)
55.48°F
(13.04°C)
1.28°F
(0.72°C)
104th Coolest
Coolest since:
1974
25th Warmest
Warmest since:
2019
Jul–Sep 2017
3-Month
58.79°F
(14.88°C)
57.16°F
(13.98°C)
1.63°F
(0.90°C)
113th Coolest
Coolest since:
1924
16th Warmest
Warmest since:
2022
Jun–Sep 2017
4-Month
58.46°F
(14.70°C)
56.78°F
(13.77°C)
1.68°F
(0.93°C)
115th Coolest
Coolest since:
1903
14th Warmest
Warmest since:
2021
May–Sep 2017
5-Month
56.34°F
(13.52°C)
54.92°F
(12.73°C)
1.42°F
(0.79°C)
114th Coolest
Coolest since:
1907, 1924
15th Warmest
Warmest since:
2018
Apr–Sep 2017
6-Month
53.89°F
(12.16°C)
52.19°F
(11.22°C)
1.70°F
(0.94°C)
119th Coolest
Coolest since:
1907
10th Warmest
Warmest since:
2018
Mar–Sep 2017
7-Month
51.12°F
(10.62°C)
49.02°F
(9.46°C)
2.10°F
(1.16°C)
123rd Coolest
Coolest since:
1917
6th Warmest
Warmest since:
2012
Feb–Sep 2017
8-Month
48.50°F
(9.17°C)
45.74°F
(7.63°C)
2.76°F
(1.54°C)
126th Coolest
Coolest since:
1917
3rd Warmest
Warmest since:
2012
Jan–Sep 2017
9-Month
45.82°F
(7.68°C)
42.86°F
(6.03°C)
2.96°F
(1.65°C)
127th Coolest
Coolest since:
1917
2nd Warmest
Warmest since:
2012
Ties: 2016
Dec 2016–Sep 2017
10-Month
43.57°F
(6.43°C)
40.84°F
(4.91°C)
2.73°F
(1.52°C)
125th Coolest
Coolest since:
1917
3rd Warmest
Warmest since:
2016
Nov 2016–Sep 2017
11-Month
42.91°F
(6.06°C)
39.92°F
(4.40°C)
2.99°F
(1.66°C)
125th Coolest
Coolest since:
1917
3rd Warmest
Warmest since:
2016
Oct 2016–Sep 2017
12-Month
43.13°F
(6.18°C)
40.04°F
(4.47°C)
3.09°F
(1.71°C)
126th Coolest
Coolest since:
1917
2nd Warmest
Warmest since:
2016
Apr 2016–Sep 2017
18-Month
46.87°F
(8.26°C)
44.09°F
(6.72°C)
2.78°F
(1.54°C)
126th Coolest
Coolest since:
1917
2nd Warmest
Warmest since:
2016
Oct 2015–Sep 2017
24-Month
43.27°F
(6.26°C)
40.04°F
(4.47°C)
3.23°F
(1.79°C)
126th Coolest
Coolest since:
1918
1st Warmest
Warmest to Date
2017
Oct 2014–Sep 2017
36-Month
42.87°F
(6.04°C)
40.02°F
(4.46°C)
2.85°F
(1.58°C)
125th Coolest
Coolest since:
1918
1st Warmest
Warmest to Date
2017, 2018
Ties: 2018
Oct 2013–Sep 2017
48-Month
42.17°F
(5.65°C)
40.01°F
(4.45°C)
2.16°F
(1.20°C)
121st Coolest
Coolest since:
1918
4th Warmest
Warmest to Date
2018
Oct 2012–Sep 2017
60-Month
41.99°F
(5.55°C)
40.00°F
(4.44°C)
1.99°F
(1.11°C)
119th Coolest
Coolest since:
1920
5th Warmest
Warmest to Date
2019, 2020

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