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 December 2021. For more information, please see Climatological Rankings.


Contiguous U.S.

Maximum Temperature Rankings, September 1899

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
September 1899
1-Month
78.96°F
(26.09°C)
77.81°F
(25.45°C)
1.15°F
(0.64°C)
90th Coolest Coolest since: 1898 1965
38th Warmest Warmest since: 1897 1998
Aug–Sep 1899
2-Month
81.86°F
(27.70°C)
81.47°F
(27.48°C)
0.39°F
(0.22°C)
72nd Coolest Coolest since: 1896 1965
56th Warmest Warmest since: 1898 1998
Jul–Sep 1899
3-Month
83.32°F
(28.51°C)
83.20°F
(28.44°C)
0.12°F
(0.07°C)
67th Coolest Coolest since: 1896 1912
61st Warmest Warmest since: 1898 1936
Ties: 2008
Jun–Sep 1899
4-Month
82.88°F
(28.27°C)
82.74°F
(28.19°C)
0.14°F
(0.08°C)
63rd Coolest Coolest since: 1896 1915
65th Warmest Warmest since: 1898 1936
May–Sep 1899
5-Month
80.75°F
(27.08°C)
80.79°F
(27.11°C)
-0.04°F
(-0.03°C)
54th Coolest Coolest since: 1895 1915
74th Warmest Warmest since: 1898 1936
Ties: 1913
Apr–Sep 1899
6-Month
77.79°F
(25.44°C)
77.90°F
(25.50°C)
-0.11°F
(-0.06°C)
48th Coolest Coolest to Date 1907
80th Warmest Warmest since: 1898 2012
Mar–Sep 1899
7-Month
73.66°F
(23.14°C)
74.35°F
(23.53°C)
-0.69°F
(-0.39°C)
23rd Coolest Coolest to Date 1912
105th Warmest Warmest since: 1898 2012
Feb–Sep 1899
8-Month
68.99°F
(20.55°C)
70.65°F
(21.47°C)
-1.66°F
(-0.92°C)
7th Coolest Coolest to Date 1912
121st Warmest Warmest since: 1898 2012
Jan–Sep 1899
9-Month
65.76°F
(18.76°C)
67.30°F
(19.61°C)
-1.54°F
(-0.85°C)
7th Coolest Coolest to Date 1912
121st Warmest Warmest since: 1898 2012
Dec 1898–Sep 1899
10-Month
63.08°F
(17.27°C)
64.86°F
(18.26°C)
-1.78°F
(-0.99°C)
6th Coolest Coolest to Date 1912
121st Warmest Warmest since: 1898 2012
Nov 1898–Sep 1899
11-Month
61.84°F
(16.58°C)
63.75°F
(17.64°C)
-1.91°F
(-1.06°C)
3rd Coolest Coolest to Date 1912
124th Warmest Warmest since: 1898 2012
Oct 1898–Sep 1899
12-Month
61.97°F
(16.65°C)
64.01°F
(17.78°C)
-2.04°F
(-1.13°C)
2nd Coolest Coolest to Date 1912
125th Warmest Warmest since: 1898 2012
Apr 1898–Sep 1899
18-Month
67.31°F
(19.62°C)
68.63°F
(20.35°C)
-1.32°F
(-0.73°C)
3rd Coolest Coolest to Date 1912
124th Warmest Warmest since: 1898 2012
Oct 1897–Sep 1899
24-Month
63.01°F
(17.23°C)
64.00°F
(17.78°C)
-0.99°F
(-0.55°C)
5th Coolest Coolest to Date 1913
121st Warmest Warmest since: 1898 2017
Oct 1896–Sep 1899
36-Month
63.07°F
(17.26°C)
63.98°F
(17.77°C)
-0.91°F
(-0.51°C)
5th Coolest Coolest to Date 1917
120th Warmest Warmest since: 1898 2018
Oct 1895–Sep 1899
48-Month
63.20°F
(17.33°C)
63.96°F
(17.76°C)
-0.76°F
(-0.43°C)
8th Coolest Coolest to Date 1915
116th Warmest Warmest to Date 2018

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published January 2022, retrieved on January 20, 2022 from https://www.ncdc.noaa.gov/cag/