National Rankings

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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, September 1901

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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 1901 1-Month	50.79°F (10.44°C)	51.90°F (11.06°C)	-1.11°F (-0.62°C)	24th Coolest	Coolest since: 1899	1918
	50.79°F (10.44°C)	51.90°F (11.06°C)	-1.11°F (-0.62°C)	105th Warmest	Warmest since: 1900	2019
	Ties: 1964
Aug–Sep 1901 2-Month	55.52°F (13.07°C)	55.48°F (13.04°C)	0.04°F (0.03°C)	58th Coolest	Coolest since: 1899	1974
Aug–Sep 1901 2-Month	55.52°F (13.07°C)	55.48°F (13.04°C)	0.04°F (0.03°C)	71st Warmest	Warmest since: 1900	2019
Jul–Sep 1901 3-Month	57.86°F (14.37°C)	57.16°F (13.98°C)	0.70°F (0.39°C)	92nd Coolest	Coolest since: 1900	1924
Jul–Sep 1901 3-Month	57.86°F (14.37°C)	57.16°F (13.98°C)	0.70°F (0.39°C)	37th Warmest	Warmest to Date	2022
Jun–Sep 1901 4-Month	57.26°F (14.03°C)	56.78°F (13.77°C)	0.48°F (0.26°C)	78th Coolest	Coolest since: 1899	1903
Jun–Sep 1901 4-Month	57.26°F (14.03°C)	56.78°F (13.77°C)	0.48°F (0.26°C)	51st Warmest	Warmest since: 1900	2021
May–Sep 1901 5-Month	55.45°F (13.03°C)	54.91°F (12.73°C)	0.54°F (0.30°C)	84th Coolest	Coolest since: 1899	1907, 1924
May–Sep 1901 5-Month	55.45°F (13.03°C)	54.91°F (12.73°C)	0.54°F (0.30°C)	45th Warmest	Warmest since: 1900	2018
Apr–Sep 1901 6-Month	52.39°F (11.33°C)	52.20°F (11.22°C)	0.19°F (0.11°C)	62nd Coolest	Coolest since: 1899	1907
	52.39°F (11.33°C)	52.20°F (11.22°C)	0.19°F (0.11°C)	67th Warmest	Warmest since: 1900	2018
	Ties: 1957
Mar–Sep 1901 7-Month	49.04°F (9.47°C)	49.02°F (9.46°C)	0.02°F (0.01°C)	55th Coolest	Coolest since: 1899	1917
	49.04°F (9.47°C)	49.02°F (9.46°C)	0.02°F (0.01°C)	74th Warmest	Warmest since: 1900	2012
	Ties: 1953, 2008
Feb–Sep 1901 8-Month	45.35°F (7.42°C)	45.75°F (7.64°C)	-0.40°F (-0.22°C)	32nd Coolest	Coolest since: 1899	1917
	45.35°F (7.42°C)	45.75°F (7.64°C)	-0.40°F (-0.22°C)	97th Warmest	Warmest since: 1900	2012
	Ties: 1944
Jan–Sep 1901 9-Month	42.65°F (5.92°C)	42.86°F (6.03°C)	-0.21°F (-0.11°C)	49th Coolest	Coolest since: 1899	1917
Jan–Sep 1901 9-Month	42.65°F (5.92°C)	42.86°F (6.03°C)	-0.21°F (-0.11°C)	80th Warmest	Warmest since: 1900	2012
Dec 1900–Sep 1901 10-Month	40.82°F (4.90°C)	40.84°F (4.91°C)	-0.02°F (-0.01°C)	55th Coolest	Coolest since: 1899	1917
	40.82°F (4.90°C)	40.84°F (4.91°C)	-0.02°F (-0.01°C)	73rd Warmest	Warmest since: 1900	2016
	Ties: 1976
Nov 1900–Sep 1901 11-Month	39.91°F (4.39°C)	39.92°F (4.40°C)	-0.01°F (-0.01°C)	59th Coolest	Coolest since: 1899	1917
Nov 1900–Sep 1901 11-Month	39.91°F (4.39°C)	39.92°F (4.40°C)	-0.01°F (-0.01°C)	69th Warmest	Warmest since: 1900	2016
Oct 1900–Sep 1901 12-Month	40.32°F (4.62°C)	40.04°F (4.47°C)	0.28°F (0.15°C)	76th Coolest	Coolest since: 1899	1917
	40.32°F (4.62°C)	40.04°F (4.47°C)	0.28°F (0.15°C)	52nd Warmest	Warmest since: 1900	2016
	Ties: 1925
Apr 1900–Sep 1901 18-Month	44.59°F (6.99°C)	44.09°F (6.72°C)	0.50°F (0.27°C)	90th Coolest	Coolest since: 1900	1917
Apr 1900–Sep 1901 18-Month	44.59°F (6.99°C)	44.09°F (6.72°C)	0.50°F (0.27°C)	38th Warmest	Warmest to Date	2016
Oct 1899–Sep 1901 24-Month	40.55°F (4.75°C)	40.04°F (4.47°C)	0.51°F (0.28°C)	85th Coolest	Coolest since: 1900	1918
Oct 1899–Sep 1901 24-Month	40.55°F (4.75°C)	40.04°F (4.47°C)	0.51°F (0.28°C)	42nd Warmest	Warmest to Date	2017
Oct 1898–Sep 1901 36-Month	39.71°F (4.28°C)	40.02°F (4.46°C)	-0.31°F (-0.18°C)	31st Coolest	Coolest since: 1900	1918
	39.71°F (4.28°C)	40.02°F (4.46°C)	-0.31°F (-0.18°C)	95th Warmest	Warmest since: 1898	2017, 2018
	Ties: 1915, 1968, 1977
Oct 1897–Sep 1901 48-Month	39.83°F (4.35°C)	40.01°F (4.45°C)	-0.18°F (-0.10°C)	42nd Coolest	Coolest since: 1900	1918
Oct 1897–Sep 1901 48-Month	39.83°F (4.35°C)	40.01°F (4.45°C)	-0.18°F (-0.10°C)	83rd Warmest	Warmest to Date	2018
Oct 1896–Sep 1901 60-Month	39.81°F (4.34°C)	40.00°F (4.44°C)	-0.19°F (-0.10°C)	39th Coolest	Coolest since: 1900	1920
	39.81°F (4.34°C)	40.00°F (4.44°C)	-0.19°F (-0.10°C)	85th Warmest	Warmest to Date	2019, 2020
	Ties: 1928

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published March 2023, retrieved on March 30, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings