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, August 2021

View Period (Months):
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  • Record Coolest
  • Bottom 1/10
  • 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
August 2021
1-Month
61.65°F
(16.47°C)
59.06°F
(15.03°C)
2.59°F
(1.44°C)
124th Coolest
Coolest since:
1950
5th Warmest
Warmest since:
2022
Ties: 2011
Jul–Aug 2021
2-Month
62.42°F
(16.90°C)
59.80°F
(15.44°C)
2.62°F
(1.46°C)
126th Coolest
Coolest since:
1950
3rd Warmest
Warmest since:
2022
Jun–Aug 2021
3-Month
61.47°F
(16.37°C)
58.41°F
(14.67°C)
3.06°F
(1.70°C)
128th Coolest
Coolest since:
1915
1st Warmest
Warmest to Date
2021
May–Aug 2021
4-Month
58.06°F
(14.48°C)
55.67°F
(13.15°C)
2.39°F
(1.33°C)
126th Coolest
Coolest since:
1907
3rd Warmest
Warmest since:
2018
Apr–Aug 2021
5-Month
54.21°F
(12.34°C)
52.26°F
(11.26°C)
1.95°F
(1.08°C)
123rd Coolest
Coolest since:
1907
6th Warmest
Warmest since:
2012
Mar–Aug 2021
6-Month
50.70°F
(10.39°C)
48.55°F
(9.19°C)
2.15°F
(1.20°C)
126th Coolest
Coolest since:
1917
3rd Warmest
Warmest since:
2012
Feb–Aug 2021
7-Month
46.37°F
(7.98°C)
44.87°F
(7.15°C)
1.50°F
(0.83°C)
114th Coolest
Coolest since:
1917
15th Warmest
Warmest since:
2012
Ties: 1921
Jan–Aug 2021
8-Month
43.72°F
(6.51°C)
41.73°F
(5.41°C)
1.99°F
(1.10°C)
121st Coolest
Coolest since:
1917
8th Warmest
Warmest since:
2012
Dec 2020–Aug 2021
9-Month
41.62°F
(5.34°C)
39.61°F
(4.23°C)
2.01°F
(1.11°C)
119th Coolest
Coolest since:
1917
9th Warmest
Warmest since:
2012
Nov 2020–Aug 2021
10-Month
40.89°F
(4.94°C)
38.72°F
(3.73°C)
2.17°F
(1.21°C)
120th Coolest
Coolest since:
1917
8th Warmest
Warmest since:
2016
Oct 2020–Aug 2021
11-Month
40.95°F
(4.97°C)
38.96°F
(3.87°C)
1.99°F
(1.10°C)
117th Coolest
Coolest since:
1917
11th Warmest
Warmest since:
2016
Sep 2020–Aug 2021
12-Month
41.96°F
(5.53°C)
40.05°F
(4.47°C)
1.91°F
(1.06°C)
117th Coolest
Coolest since:
1917
11th Warmest
Warmest since:
2016
Mar 2020–Aug 2021
18-Month
44.86°F
(7.14°C)
42.88°F
(6.04°C)
1.98°F
(1.10°C)
123rd Coolest
Coolest since:
1917
5th Warmest
Warmest since:
2016
Sep 2019–Aug 2021
24-Month
42.14°F
(5.63°C)
40.03°F
(4.46°C)
2.11°F
(1.17°C)
121st Coolest
Coolest since:
1918
6th Warmest
Warmest since:
2017
Sep 2018–Aug 2021
36-Month
41.91°F
(5.51°C)
40.02°F
(4.46°C)
1.89°F
(1.05°C)
119th Coolest
Coolest since:
1918
7th Warmest
Warmest since:
2017
Sep 2017–Aug 2021
48-Month
41.90°F
(5.50°C)
40.00°F
(4.44°C)
1.90°F
(1.06°C)
119th Coolest
Coolest since:
1918
6th Warmest
Warmest since:
2018
Sep 2016–Aug 2021
60-Month
42.17°F
(5.65°C)
40.00°F
(4.44°C)
2.17°F
(1.21°C)
121st Coolest
Coolest since:
1920
3rd Warmest
Warmest since:
2020

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