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 2019

View Period (Months):
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  • Record Coolest
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  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 2019
1-Month
56.26°F
(13.48°C)
51.90°F
(11.06°C)
4.36°F
(2.42°C)
128th Coolest
Coolest since:
1918
1st Warmest
Warmest to Date
2019
Aug–Sep 2019
2-Month
58.69°F
(14.83°C)
55.48°F
(13.04°C)
3.21°F
(1.79°C)
128th Coolest
Coolest since:
1974
1st Warmest
Warmest to Date
2019
Jul–Sep 2019
3-Month
59.84°F
(15.47°C)
57.17°F
(13.98°C)
2.67°F
(1.49°C)
126th Coolest
Coolest since:
1924
3rd Warmest
Warmest since:
2022
Jun–Sep 2019
4-Month
58.94°F
(14.97°C)
56.78°F
(13.77°C)
2.16°F
(1.20°C)
122nd Coolest
Coolest since:
1903
7th Warmest
Warmest since:
2021
May–Sep 2019
5-Month
56.77°F
(13.76°C)
54.91°F
(12.73°C)
1.86°F
(1.03°C)
122nd Coolest
Coolest since:
1907, 1924
7th Warmest
Warmest since:
2018
Apr–Sep 2019
6-Month
54.11°F
(12.28°C)
52.19°F
(11.22°C)
1.92°F
(1.06°C)
122nd Coolest
Coolest since:
1907
7th Warmest
Warmest since:
2018
Mar–Sep 2019
7-Month
50.55°F
(10.31°C)
49.02°F
(9.46°C)
1.53°F
(0.85°C)
116th Coolest
Coolest since:
1917
13th Warmest
Warmest since:
2012
Feb–Sep 2019
8-Month
46.98°F
(8.32°C)
45.75°F
(7.64°C)
1.23°F
(0.68°C)
105th Coolest
Coolest since:
1917
24th Warmest
Warmest since:
2012
Jan–Sep 2019
9-Month
44.30°F
(6.83°C)
42.86°F
(6.03°C)
1.44°F
(0.80°C)
110th Coolest
Coolest since:
1917
19th Warmest
Warmest since:
2012
Dec 2018–Sep 2019
10-Month
42.49°F
(5.83°C)
40.84°F
(4.91°C)
1.65°F
(0.92°C)
113th Coolest
Coolest since:
1917
15th Warmest
Warmest since:
2016
Nov 2018–Sep 2019
11-Month
41.34°F
(5.19°C)
39.91°F
(4.39°C)
1.43°F
(0.80°C)
109th Coolest
Coolest since:
1917
19th Warmest
Warmest since:
2016
Oct 2018–Sep 2019
12-Month
41.48°F
(5.27°C)
40.04°F
(4.47°C)
1.44°F
(0.80°C)
112th Coolest
Coolest since:
1917
16th Warmest
Warmest since:
2016
Ties: 1921
Apr 2018–Sep 2019
18-Month
45.83°F
(7.68°C)
44.09°F
(6.72°C)
1.74°F
(0.96°C)
119th Coolest
Coolest since:
1917
9th Warmest
Warmest since:
2016
Oct 2017–Sep 2019
24-Month
41.77°F
(5.43°C)
40.04°F
(4.47°C)
1.73°F
(0.96°C)
115th Coolest
Coolest since:
1918
12th Warmest
Warmest since:
2017
Ties: 2020
Oct 2016–Sep 2019
36-Month
42.22°F
(5.68°C)
40.02°F
(4.46°C)
2.20°F
(1.22°C)
123rd Coolest
Coolest since:
1918
3rd Warmest
Warmest since:
2017, 2018
Oct 2015–Sep 2019
48-Month
42.52°F
(5.84°C)
40.01°F
(4.45°C)
2.51°F
(1.39°C)
123rd Coolest
Coolest since:
1918
2nd Warmest
Warmest since:
2018
Oct 2014–Sep 2019
60-Month
42.43°F
(5.79°C)
40.00°F
(4.44°C)
2.43°F
(1.35°C)
123rd Coolest
Coolest since:
1920
1st Warmest
Warmest to Date
2019, 2020
Ties: 2020

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