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 September 2020. For more information, please see Climatological Rankings.


Contiguous U.S.

Average Temperature Rankings, September 1939

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
September 1939
1-Month
67.37°F
(19.65°C)
64.86°F
(18.26°C)
2.51°F
(1.39°C)
120th Coolest Coolest since: 1938 1965
7th Warmest Warmest since: 1933 1998
Ties: 2005
Aug–Sep 1939
2-Month
70.01°F
(21.12°C)
68.48°F
(20.27°C)
1.53°F
(0.85°C)
108th Coolest Coolest since: 1935 1974
19th Warmest Warmest since: 1938 1998
Jul–Sep 1939
3-Month
71.63°F
(22.02°C)
70.19°F
(21.22°C)
1.44°F
(0.80°C)
110th Coolest Coolest since: 1938 1950
17th Warmest Warmest since: 1937 1998
Jun–Sep 1939
4-Month
70.94°F
(21.63°C)
69.77°F
(20.98°C)
1.17°F
(0.65°C)
106th Coolest Coolest since: 1938 1903
21st Warmest Warmest since: 1937 1936
Ties: 1937
May–Sep 1939
5-Month
69.29°F
(20.72°C)
67.85°F
(19.92°C)
1.44°F
(0.80°C)
116th Coolest Coolest since: 1938 1907
11th Warmest Warmest since: 1936 2018
Apr–Sep 1939
6-Month
66.33°F
(19.07°C)
65.05°F
(18.36°C)
1.28°F
(0.71°C)
109th Coolest Coolest since: 1938 1907
18th Warmest Warmest since: 1936 2012
Mar–Sep 1939
7-Month
62.93°F
(17.18°C)
61.69°F
(16.49°C)
1.24°F
(0.69°C)
107th Coolest Coolest since: 1938 1912
20th Warmest Warmest since: 1936 2012
Feb–Sep 1939
8-Month
58.81°F
(14.89°C)
58.20°F
(14.56°C)
0.61°F
(0.33°C)
86th Coolest Coolest since: 1937 1917
41st Warmest Warmest since: 1938 2012
Jan–Sep 1939
9-Month
56.04°F
(13.36°C)
55.08°F
(12.82°C)
0.96°F
(0.54°C)
97th Coolest Coolest since: 1937 1912
30th Warmest Warmest since: 1938 2012
Dec 1938–Sep 1939
10-Month
53.86°F
(12.14°C)
52.85°F
(11.58°C)
1.01°F
(0.56°C)
99th Coolest Coolest since: 1937 1917
27th Warmest Warmest since: 1938 2012
Ties: 1931
Nov 1938–Sep 1939
11-Month
52.59°F
(11.44°C)
51.83°F
(11.02°C)
0.76°F
(0.42°C)
94th Coolest Coolest since: 1937 1912
32nd Warmest Warmest since: 1938 2012
Ties: 2009
Oct 1938–Sep 1939
12-Month
52.91°F
(11.62°C)
52.03°F
(11.13°C)
0.88°F
(0.49°C)
102nd Coolest Coolest since: 1937 1912
24th Warmest Warmest since: 1938 2012
Ties: 1995, 2011
Apr 1938–Sep 1939
18-Month
57.19°F
(13.99°C)
56.37°F
(13.54°C)
0.82°F
(0.45°C)
96th Coolest Coolest since: 1937 1917
30th Warmest Warmest since: 1938 2012
Ties: 1988
Oct 1937–Sep 1939
24-Month
52.92°F
(11.62°C)
52.02°F
(11.12°C)
0.90°F
(0.50°C)
100th Coolest Coolest since: 1938 1913, 1918
25th Warmest Warmest since: 1935 2017
Oct 1936–Sep 1939
36-Month
52.47°F
(11.37°C)
52.00°F
(11.11°C)
0.47°F
(0.26°C)
85th Coolest Coolest since: 1938 1917
39th Warmest Warmest since: 1936 2018
Ties: 1933
Oct 1935–Sep 1939
48-Month
52.31°F
(11.28°C)
51.99°F
(11.11°C)
0.32°F
(0.17°C)
76th Coolest Coolest since: 1938 1918
47th Warmest Warmest since: 1937 2018
Oct 1934–Sep 1939
60-Month
52.40°F
(11.33°C)
51.98°F
(11.10°C)
0.42°F
(0.23°C)
82nd Coolest Coolest since: 1933 1920
40th Warmest Warmest since: 1938 2020
Ties: 1941, 1943

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published October 2020, retrieved on October 23, 2020 from https://www.ncdc.noaa.gov/cag/