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 1993

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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 1993 1-Month	50.27°F (10.15°C)	51.90°F (11.06°C)	-1.63°F (-0.91°C)	12th Coolest	Coolest since: 1984	1918
	50.27°F (10.15°C)	51.90°F (11.06°C)	-1.63°F (-0.91°C)	117th Warmest	Warmest since: 1992	2019
	Ties: 1943
Aug–Sep 1993 2-Month	54.91°F (12.73°C)	55.48°F (13.04°C)	-0.57°F (-0.31°C)	34th Coolest	Coolest since: 1992	1974
Aug–Sep 1993 2-Month	54.91°F (12.73°C)	55.48°F (13.04°C)	-0.57°F (-0.31°C)	95th Warmest	Warmest since: 1991	2019
Jul–Sep 1993 3-Month	56.70°F (13.72°C)	57.16°F (13.98°C)	-0.46°F (-0.26°C)	30th Coolest	Coolest since: 1992	1924
	56.70°F (13.72°C)	57.16°F (13.98°C)	-0.46°F (-0.26°C)	99th Warmest	Warmest since: 1991	2022
	Ties: 1942, 1951
Jun–Sep 1993 4-Month	56.31°F (13.51°C)	56.78°F (13.77°C)	-0.47°F (-0.26°C)	31st Coolest	Coolest since: 1992	1903
Jun–Sep 1993 4-Month	56.31°F (13.51°C)	56.78°F (13.77°C)	-0.47°F (-0.26°C)	98th Warmest	Warmest since: 1991	2021
May–Sep 1993 5-Month	54.72°F (12.62°C)	54.91°F (12.73°C)	-0.19°F (-0.11°C)	40th Coolest	Coolest since: 1992	1907, 1924
	54.72°F (12.62°C)	54.91°F (12.73°C)	-0.19°F (-0.11°C)	89th Warmest	Warmest since: 1991	2018
	Ties: 1935
Apr–Sep 1993 6-Month	51.93°F (11.07°C)	52.20°F (11.22°C)	-0.27°F (-0.15°C)	38th Coolest	Coolest since: 1983	1907
	51.93°F (11.07°C)	52.20°F (11.22°C)	-0.27°F (-0.15°C)	91st Warmest	Warmest since: 1992	2018
	Ties: 1910
Mar–Sep 1993 7-Month	48.94°F (9.41°C)	49.02°F (9.46°C)	-0.08°F (-0.05°C)	52nd Coolest	Coolest since: 1984	1917
Mar–Sep 1993 7-Month	48.94°F (9.41°C)	49.02°F (9.46°C)	-0.08°F (-0.05°C)	77th Warmest	Warmest since: 1992	2012
Feb–Sep 1993 8-Month	45.44°F (7.47°C)	45.75°F (7.64°C)	-0.31°F (-0.17°C)	38th Coolest	Coolest since: 1979	1917
Feb–Sep 1993 8-Month	45.44°F (7.47°C)	45.75°F (7.64°C)	-0.31°F (-0.17°C)	91st Warmest	Warmest since: 1992	2012
Jan–Sep 1993 9-Month	42.76°F (5.98°C)	42.86°F (6.03°C)	-0.10°F (-0.05°C)	54th Coolest	Coolest since: 1985	1917
	42.76°F (5.98°C)	42.86°F (6.03°C)	-0.10°F (-0.05°C)	75th Warmest	Warmest since: 1992	2012
	Ties: 1909
Dec 1992–Sep 1993 10-Month	40.75°F (4.86°C)	40.84°F (4.91°C)	-0.09°F (-0.05°C)	49th Coolest	Coolest since: 1984	1917
	40.75°F (4.86°C)	40.84°F (4.91°C)	-0.09°F (-0.05°C)	79th Warmest	Warmest since: 1992	2016
	Ties: 1959
Nov 1992–Sep 1993 11-Month	39.85°F (4.36°C)	39.92°F (4.40°C)	-0.07°F (-0.04°C)	52nd Coolest	Coolest since: 1984	1917
Nov 1992–Sep 1993 11-Month	39.85°F (4.36°C)	39.92°F (4.40°C)	-0.07°F (-0.04°C)	76th Warmest	Warmest since: 1992	2016
Oct 1992–Sep 1993 12-Month	39.99°F (4.44°C)	40.04°F (4.47°C)	-0.05°F (-0.03°C)	53rd Coolest	Coolest since: 1984	1917
Oct 1992–Sep 1993 12-Month	39.99°F (4.44°C)	40.04°F (4.47°C)	-0.05°F (-0.03°C)	75th Warmest	Warmest since: 1992	2016
Apr 1992–Sep 1993 18-Month	43.98°F (6.66°C)	44.09°F (6.72°C)	-0.11°F (-0.06°C)	47th Coolest	Coolest since: 1984	1917
Apr 1992–Sep 1993 18-Month	43.98°F (6.66°C)	44.09°F (6.72°C)	-0.11°F (-0.06°C)	81st Warmest	Warmest since: 1992	2016
Oct 1991–Sep 1993 24-Month	40.61°F (4.78°C)	40.04°F (4.47°C)	0.57°F (0.31°C)	89th Coolest	Coolest since: 1989	1918
Oct 1991–Sep 1993 24-Month	40.61°F (4.78°C)	40.04°F (4.47°C)	0.57°F (0.31°C)	38th Warmest	Warmest since: 1992	2017
Oct 1990–Sep 1993 36-Month	40.81°F (4.89°C)	40.02°F (4.46°C)	0.79°F (0.43°C)	97th Coolest	Coolest since: 1990	1918
Oct 1990–Sep 1993 36-Month	40.81°F (4.89°C)	40.02°F (4.46°C)	0.79°F (0.43°C)	29th Warmest	Warmest since: 1992	2017, 2018
Oct 1989–Sep 1993 48-Month	40.86°F (4.92°C)	40.01°F (4.45°C)	0.85°F (0.47°C)	99th Coolest	Coolest since: 1991	1918
Oct 1989–Sep 1993 48-Month	40.86°F (4.92°C)	40.01°F (4.45°C)	0.85°F (0.47°C)	26th Warmest	Warmest since: 1992	2018
Oct 1988–Sep 1993 60-Month	40.74°F (4.86°C)	40.00°F (4.44°C)	0.74°F (0.42°C)	93rd Coolest	Coolest since: 1989	1920
Oct 1988–Sep 1993 60-Month	40.74°F (4.86°C)	40.00°F (4.44°C)	0.74°F (0.42°C)	31st Warmest	Warmest since: 1992	2019, 2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published March 2023, retrieved on March 26, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings