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 1997

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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 1997 1-Month	53.89°F (12.16°C)	51.90°F (11.06°C)	1.99°F (1.10°C)	112th Coolest	Coolest since: 1996	1918
September 1997 1-Month	53.89°F (12.16°C)	51.90°F (11.06°C)	1.99°F (1.10°C)	17th Warmest	Warmest since: 1990	2019
Aug–Sep 1997 2-Month	56.62°F (13.68°C)	55.48°F (13.04°C)	1.14°F (0.64°C)	99th Coolest	Coolest since: 1996	1974
Aug–Sep 1997 2-Month	56.62°F (13.68°C)	55.48°F (13.04°C)	1.14°F (0.64°C)	30th Warmest	Warmest since: 1995	2019
Jul–Sep 1997 3-Month	57.91°F (14.39°C)	57.16°F (13.98°C)	0.75°F (0.41°C)	95th Coolest	Coolest since: 1996	1924
Jul–Sep 1997 3-Month	57.91°F (14.39°C)	57.16°F (13.98°C)	0.75°F (0.41°C)	34th Warmest	Warmest since: 1995	2022
Jun–Sep 1997 4-Month	57.48°F (14.16°C)	56.78°F (13.77°C)	0.70°F (0.39°C)	90th Coolest	Coolest since: 1996	1903
Jun–Sep 1997 4-Month	57.48°F (14.16°C)	56.78°F (13.77°C)	0.70°F (0.39°C)	39th Warmest	Warmest since: 1994	2021
May–Sep 1997 5-Month	55.28°F (12.93°C)	54.91°F (12.73°C)	0.37°F (0.20°C)	75th Coolest	Coolest since: 1993	1907, 1924
May–Sep 1997 5-Month	55.28°F (12.93°C)	54.91°F (12.73°C)	0.37°F (0.20°C)	54th Warmest	Warmest since: 1996	2018
Apr–Sep 1997 6-Month	52.06°F (11.14°C)	52.20°F (11.22°C)	-0.14°F (-0.08°C)	48th Coolest	Coolest since: 1993	1907
Apr–Sep 1997 6-Month	52.06°F (11.14°C)	52.20°F (11.22°C)	-0.14°F (-0.08°C)	81st Warmest	Warmest since: 1996	2018
Mar–Sep 1997 7-Month	49.23°F (9.57°C)	49.02°F (9.46°C)	0.21°F (0.11°C)	67th Coolest	Coolest since: 1996	1917
Mar–Sep 1997 7-Month	49.23°F (9.57°C)	49.02°F (9.46°C)	0.21°F (0.11°C)	62nd Warmest	Warmest since: 1995	2012
Feb–Sep 1997 8-Month	46.33°F (7.96°C)	45.75°F (7.64°C)	0.58°F (0.32°C)	87th Coolest	Coolest since: 1996	1917
Feb–Sep 1997 8-Month	46.33°F (7.96°C)	45.75°F (7.64°C)	0.58°F (0.32°C)	42nd Warmest	Warmest since: 1995	2012
Jan–Sep 1997 9-Month	43.41°F (6.34°C)	42.86°F (6.03°C)	0.55°F (0.31°C)	86th Coolest	Coolest since: 1996	1917
	43.41°F (6.34°C)	42.86°F (6.03°C)	0.55°F (0.31°C)	43rd Warmest	Warmest since: 1995	2012
	Ties: 1946
Dec 1996–Sep 1997 10-Month	41.48°F (5.27°C)	40.84°F (4.91°C)	0.64°F (0.36°C)	90th Coolest	Coolest since: 1996	1917
Dec 1996–Sep 1997 10-Month	41.48°F (5.27°C)	40.84°F (4.91°C)	0.64°F (0.36°C)	38th Warmest	Warmest since: 1995	2016
Nov 1996–Sep 1997 11-Month	40.41°F (4.67°C)	39.92°F (4.40°C)	0.49°F (0.27°C)	86th Coolest	Coolest since: 1996	1917
Nov 1996–Sep 1997 11-Month	40.41°F (4.67°C)	39.92°F (4.40°C)	0.49°F (0.27°C)	42nd Warmest	Warmest since: 1995	2016
Oct 1996–Sep 1997 12-Month	40.48°F (4.71°C)	40.04°F (4.47°C)	0.44°F (0.24°C)	84th Coolest	Coolest since: 1996	1917
Oct 1996–Sep 1997 12-Month	40.48°F (4.71°C)	40.04°F (4.47°C)	0.44°F (0.24°C)	44th Warmest	Warmest since: 1995	2016
Apr 1996–Sep 1997 18-Month	44.53°F (6.96°C)	44.09°F (6.72°C)	0.44°F (0.24°C)	87th Coolest	Coolest since: 1996	1917
	44.53°F (6.96°C)	44.09°F (6.72°C)	0.44°F (0.24°C)	41st Warmest	Warmest since: 1995	2016
	Ties: 1931, 2009
Oct 1995–Sep 1997 24-Month	40.29°F (4.61°C)	40.04°F (4.47°C)	0.25°F (0.14°C)	75th Coolest	Coolest since: 1994	1918
Oct 1995–Sep 1997 24-Month	40.29°F (4.61°C)	40.04°F (4.47°C)	0.25°F (0.14°C)	52nd Warmest	Warmest since: 1996	2017
Oct 1994–Sep 1997 36-Month	40.68°F (4.82°C)	40.02°F (4.46°C)	0.66°F (0.36°C)	95th Coolest	Coolest since: 1996	1918
Oct 1994–Sep 1997 36-Month	40.68°F (4.82°C)	40.02°F (4.46°C)	0.66°F (0.36°C)	31st Warmest	Warmest since: 1993	2017, 2018
Oct 1993–Sep 1997 48-Month	40.57°F (4.76°C)	40.01°F (4.45°C)	0.56°F (0.31°C)	86th Coolest	Coolest since: 1996	1918
	40.57°F (4.76°C)	40.01°F (4.45°C)	0.56°F (0.31°C)	39th Warmest	Warmest since: 1995	2018
	Ties: 1983
Oct 1992–Sep 1997 60-Month	40.45°F (4.69°C)	40.00°F (4.44°C)	0.45°F (0.25°C)	85th Coolest	Coolest since: 1986	1920
	40.45°F (4.69°C)	40.00°F (4.44°C)	0.45°F (0.25°C)	39th Warmest	Warmest since: 1996	2019, 2020
	Ties: 1936

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published March 2023, retrieved on March 21, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings