National Rankings

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Contiguous U.S.

Average Temperature Rankings, September 1940

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Record Coolest
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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1940 1-Month	65.35°F (18.53°C)	64.86°F (18.26°C)	0.49°F (0.27°C)	69th Coolest	Coolest since: 1935	1965
September 1940 1-Month	65.35°F (18.53°C)	64.86°F (18.26°C)	0.49°F (0.27°C)	60th Warmest	Warmest since: 1939	1998
Aug–Sep 1940 2-Month	68.75°F (20.42°C)	68.48°F (20.27°C)	0.27°F (0.15°C)	67th Coolest	Coolest since: 1934	1974
	68.75°F (20.42°C)	68.48°F (20.27°C)	0.27°F (0.15°C)	62nd Warmest	Warmest since: 1939	1998
	Ties: 2008
Jul–Sep 1940 3-Month	70.54°F (21.41°C)	70.19°F (21.22°C)	0.35°F (0.19°C)	76th Coolest	Coolest since: 1932	1950
Jul–Sep 1940 3-Month	70.54°F (21.41°C)	70.19°F (21.22°C)	0.35°F (0.19°C)	53rd Warmest	Warmest since: 1939	2022
Jun–Sep 1940 4-Month	70.31°F (21.28°C)	69.77°F (20.98°C)	0.54°F (0.30°C)	83rd Coolest	Coolest since: 1935	1903
Jun–Sep 1940 4-Month	70.31°F (21.28°C)	69.77°F (20.98°C)	0.54°F (0.30°C)	46th Warmest	Warmest since: 1939	2021
May–Sep 1940 5-Month	68.42°F (20.23°C)	67.85°F (19.92°C)	0.57°F (0.31°C)	88th Coolest	Coolest since: 1935	1907
May–Sep 1940 5-Month	68.42°F (20.23°C)	67.85°F (19.92°C)	0.57°F (0.31°C)	41st Warmest	Warmest since: 1939	2018
Apr–Sep 1940 6-Month	65.39°F (18.55°C)	65.05°F (18.36°C)	0.34°F (0.19°C)	72nd Coolest	Coolest since: 1935	1907
	65.39°F (18.55°C)	65.05°F (18.36°C)	0.34°F (0.19°C)	57th Warmest	Warmest since: 1939	2012
	Ties: 1985
Mar–Sep 1940 7-Month	61.98°F (16.66°C)	61.69°F (16.49°C)	0.29°F (0.17°C)	74th Coolest	Coolest since: 1935	1912
	61.98°F (16.66°C)	61.69°F (16.49°C)	0.29°F (0.17°C)	55th Warmest	Warmest since: 1939	2012
	Ties: 1919, 1949
Feb–Sep 1940 8-Month	58.46°F (14.70°C)	58.21°F (14.56°C)	0.25°F (0.14°C)	75th Coolest	Coolest since: 1937	1917
	58.46°F (14.70°C)	58.21°F (14.56°C)	0.25°F (0.14°C)	54th Warmest	Warmest since: 1939	2012
	Ties: 1997
Jan–Sep 1940 9-Month	54.61°F (12.56°C)	55.08°F (12.82°C)	-0.47°F (-0.26°C)	33rd Coolest	Coolest since: 1937	1912
Jan–Sep 1940 9-Month	54.61°F (12.56°C)	55.08°F (12.82°C)	-0.47°F (-0.26°C)	96th Warmest	Warmest since: 1939	2012
Dec 1939–Sep 1940 10-Month	52.92°F (11.62°C)	52.85°F (11.58°C)	0.07°F (0.04°C)	56th Coolest	Coolest since: 1937	1917
	52.92°F (11.62°C)	52.85°F (11.58°C)	0.07°F (0.04°C)	72nd Warmest	Warmest since: 1939	2012
	Ties: 1926, 1963
Nov 1939–Sep 1940 11-Month	51.96°F (11.09°C)	51.84°F (11.02°C)	0.12°F (0.07°C)	65th Coolest	Coolest since: 1937	1912
	51.96°F (11.09°C)	51.84°F (11.02°C)	0.12°F (0.07°C)	63rd Warmest	Warmest since: 1939	2012
	Ties: 1922
Oct 1939–Sep 1940 12-Month	52.19°F (11.22°C)	52.03°F (11.13°C)	0.16°F (0.09°C)	66th Coolest	Coolest since: 1937	1912
	52.19°F (11.22°C)	52.03°F (11.13°C)	0.16°F (0.09°C)	62nd Warmest	Warmest since: 1939	2012
	Ties: 1901
Apr 1939–Sep 1940 18-Month	56.90°F (13.83°C)	56.37°F (13.54°C)	0.53°F (0.29°C)	88th Coolest	Coolest since: 1937	1917
Apr 1939–Sep 1940 18-Month	56.90°F (13.83°C)	56.37°F (13.54°C)	0.53°F (0.29°C)	40th Warmest	Warmest since: 1939	2012
Oct 1938–Sep 1940 24-Month	52.55°F (11.42°C)	52.02°F (11.12°C)	0.53°F (0.30°C)	88th Coolest	Coolest since: 1938	1913, 1918
Oct 1938–Sep 1940 24-Month	52.55°F (11.42°C)	52.02°F (11.12°C)	0.53°F (0.30°C)	39th Warmest	Warmest since: 1939	2017
Oct 1937–Sep 1940 36-Month	52.67°F (11.48°C)	52.00°F (11.11°C)	0.67°F (0.37°C)	92nd Coolest	Coolest since: 1939	1917
Oct 1937–Sep 1940 36-Month	52.67°F (11.48°C)	52.00°F (11.11°C)	0.67°F (0.37°C)	34th Warmest	Warmest since: 1936	2018
Oct 1936–Sep 1940 48-Month	52.40°F (11.33°C)	51.99°F (11.11°C)	0.41°F (0.22°C)	83rd Coolest	Coolest since: 1939	1918
	52.40°F (11.33°C)	51.99°F (11.11°C)	0.41°F (0.22°C)	42nd Warmest	Warmest since: 1937	2018
	Ties: 1933, 1994
Oct 1935–Sep 1940 60-Month	52.29°F (11.27°C)	51.98°F (11.10°C)	0.31°F (0.17°C)	75th Coolest	Coolest since: 1933	1920
	52.29°F (11.27°C)	51.98°F (11.10°C)	0.31°F (0.17°C)	49th Warmest	Warmest since: 1939	2020
	Ties: 1954

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published May 2023, retrieved on May 31, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings