Climate at a Glance

National Rankings

Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of October 2021. For more information, please see Climatological Rankings.


Contiguous U.S.

Minimum Temperature Rankings, September 2021

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
September 2021
1-Month
54.50°F
(12.50°C)
51.90°F
(11.06°C)
2.60°F
(1.44°C)
119th Coolest Coolest since: 2020 1918
9th Warmest Warmest since: 2019 2019
Aug–Sep 2021
2-Month
58.07°F
(14.48°C)
55.48°F
(13.04°C)
2.59°F
(1.44°C)
124th Coolest Coolest since: 2020 1974
4th Warmest Warmest since: 2019 2019
Jul–Sep 2021
3-Month
59.77°F
(15.43°C)
57.16°F
(13.98°C)
2.61°F
(1.45°C)
124th Coolest Coolest since: 2020 1924
4th Warmest Warmest since: 2019 1998
Jun–Sep 2021
4-Month
59.73°F
(15.41°C)
56.78°F
(13.77°C)
2.95°F
(1.64°C)
127th Coolest Coolest since: 2020 1903
1st Warmest Warmest to Date 2021
May–Sep 2021
5-Month
57.34°F
(14.08°C)
54.91°F
(12.73°C)
2.43°F
(1.35°C)
126th Coolest Coolest since: 2020 1907, 1924
2nd Warmest Warmest since: 2018 2018
Apr–Sep 2021
6-Month
54.26°F
(12.37°C)
52.20°F
(11.22°C)
2.06°F
(1.15°C)
124th Coolest Coolest since: 2020 1907
4th Warmest Warmest since: 2018 2018
Mar–Sep 2021
7-Month
51.24°F
(10.69°C)
49.02°F
(9.46°C)
2.22°F
(1.23°C)
124th Coolest Coolest since: 2020 1917
4th Warmest Warmest since: 2016 2012
Feb–Sep 2021
8-Month
47.38°F
(8.54°C)
45.74°F
(7.63°C)
1.64°F
(0.91°C)
118th Coolest Coolest since: 2019 1917
10th Warmest Warmest since: 2020 2012
Jan–Sep 2021
9-Month
44.92°F
(7.18°C)
42.86°F
(6.03°C)
2.06°F
(1.15°C)
120th Coolest Coolest since: 2019 1917
8th Warmest Warmest since: 2020 2012
Dec 2020–Sep 2021
10-Month
42.91°F
(6.06°C)
40.84°F
(4.91°C)
2.07°F
(1.15°C)
119th Coolest Coolest since: 2019 1917
8th Warmest Warmest since: 2020 2016
Nov 2020–Sep 2021
11-Month
42.13°F
(5.63°C)
39.92°F
(4.40°C)
2.21°F
(1.23°C)
120th Coolest Coolest since: 2019 1917
7th Warmest Warmest since: 2020 2016
Oct 2020–Sep 2021
12-Month
42.08°F
(5.60°C)
40.04°F
(4.47°C)
2.04°F
(1.13°C)
120th Coolest Coolest since: 2020 1917
7th Warmest Warmest since: 2017 2016
Ties: 2006, 2015
Apr 2020–Sep 2021
18-Month
45.91°F
(7.73°C)
44.09°F
(6.72°C)
1.82°F
(1.01°C)
121st Coolest Coolest since: 2019 1917
6th Warmest Warmest since: 2020 2016
Oct 2019–Sep 2021
24-Month
42.07°F
(5.59°C)
40.04°F
(4.47°C)
2.03°F
(1.12°C)
120th Coolest Coolest since: 2020 1918
6th Warmest Warmest since: 2018 2017
Oct 2018–Sep 2021
36-Month
41.87°F
(5.48°C)
40.02°F
(4.46°C)
1.85°F
(1.02°C)
119th Coolest Coolest since: 2020 1918
6th Warmest Warmest since: 2020 2017, 2018
Ties: 2020
Oct 2017–Sep 2021
48-Month
41.92°F
(5.51°C)
40.01°F
(4.45°C)
1.91°F
(1.06°C)
119th Coolest Coolest since: 2016 1918
5th Warmest Warmest since: 2020 2018
Oct 2016–Sep 2021
60-Month
42.16°F
(5.64°C)
40.00°F
(4.44°C)
2.16°F
(1.20°C)
120th Coolest Coolest since: 2018 1920
3rd Warmest Warmest since: 2020 2019, 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published November 2021, retrieved on December 5, 2021 from https://www.ncdc.noaa.gov/cag/