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.

Average Temperature Rankings, September 2008

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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 2008 1-Month	65.21°F (18.45°C)	64.86°F (18.26°C)	0.35°F (0.19°C)	66th Coolest	Coolest since: 2006	1965
September 2008 1-Month	65.21°F (18.45°C)	64.86°F (18.26°C)	0.35°F (0.19°C)	63rd Warmest	Warmest since: 2007	1998
Aug–Sep 2008 2-Month	68.75°F (20.42°C)	68.48°F (20.27°C)	0.27°F (0.15°C)	67th Coolest	Coolest since: 2006	1974
	68.75°F (20.42°C)	68.48°F (20.27°C)	0.27°F (0.15°C)	62nd Warmest	Warmest since: 2007	1998
	Ties: 1940
Jul–Sep 2008 3-Month	70.52°F (21.40°C)	70.19°F (21.22°C)	0.33°F (0.18°C)	75th Coolest	Coolest since: 2004	1950
	70.52°F (21.40°C)	70.19°F (21.22°C)	0.33°F (0.18°C)	54th Warmest	Warmest since: 2007	2022
	Ties: 1999
Jun–Sep 2008 4-Month	70.29°F (21.27°C)	69.77°F (20.98°C)	0.52°F (0.29°C)	82nd Coolest	Coolest since: 2004	1903
Jun–Sep 2008 4-Month	70.29°F (21.27°C)	69.77°F (20.98°C)	0.52°F (0.29°C)	47th Warmest	Warmest since: 2007	2021, 2022
May–Sep 2008 5-Month	68.11°F (20.06°C)	67.85°F (19.92°C)	0.26°F (0.14°C)	66th Coolest	Coolest since: 2004	1907
	68.11°F (20.06°C)	67.85°F (19.92°C)	0.26°F (0.14°C)	63rd Warmest	Warmest since: 2007	2018
	Ties: 1943, 1944
Apr–Sep 2008 6-Month	65.16°F (18.42°C)	65.05°F (18.36°C)	0.11°F (0.06°C)	53rd Coolest	Coolest since: 1997	1907
Apr–Sep 2008 6-Month	65.16°F (18.42°C)	65.05°F (18.36°C)	0.11°F (0.06°C)	76th Warmest	Warmest since: 2007	2012
Mar–Sep 2008 7-Month	61.83°F (16.57°C)	61.69°F (16.49°C)	0.14°F (0.08°C)	66th Coolest	Coolest since: 1997	1912
Mar–Sep 2008 7-Month	61.83°F (16.57°C)	61.69°F (16.49°C)	0.14°F (0.08°C)	63rd Warmest	Warmest since: 2007	2012
Feb–Sep 2008 8-Month	58.44°F (14.69°C)	58.21°F (14.56°C)	0.23°F (0.13°C)	73rd Coolest	Coolest since: 1996	1917
Feb–Sep 2008 8-Month	58.44°F (14.69°C)	58.21°F (14.56°C)	0.23°F (0.13°C)	56th Warmest	Warmest since: 2007	2012
Jan–Sep 2008 9-Month	55.31°F (12.95°C)	55.08°F (12.82°C)	0.23°F (0.13°C)	71st Coolest	Coolest since: 1997	1912
Jan–Sep 2008 9-Month	55.31°F (12.95°C)	55.08°F (12.82°C)	0.23°F (0.13°C)	58th Warmest	Warmest since: 2007	2012
Dec 2007–Sep 2008 10-Month	53.10°F (11.72°C)	52.85°F (11.58°C)	0.25°F (0.14°C)	70th Coolest	Coolest since: 1996	1917
Dec 2007–Sep 2008 10-Month	53.10°F (11.72°C)	52.85°F (11.58°C)	0.25°F (0.14°C)	58th Warmest	Warmest since: 2007	2012
Nov 2007–Sep 2008 11-Month	52.27°F (11.26°C)	51.84°F (11.02°C)	0.43°F (0.24°C)	81st Coolest	Coolest since: 2001	1912
Nov 2007–Sep 2008 11-Month	52.27°F (11.26°C)	51.84°F (11.02°C)	0.43°F (0.24°C)	47th Warmest	Warmest since: 2007	2012
Oct 2007–Sep 2008 12-Month	52.64°F (11.47°C)	52.03°F (11.13°C)	0.61°F (0.34°C)	89th Coolest	Coolest since: 2001	1912
Oct 2007–Sep 2008 12-Month	52.64°F (11.47°C)	52.03°F (11.13°C)	0.61°F (0.34°C)	39th Warmest	Warmest since: 2007	2012
Apr 2007–Sep 2008 18-Month	57.23°F (14.02°C)	56.37°F (13.54°C)	0.86°F (0.48°C)	98th Coolest	Coolest since: 2001	1917
	57.23°F (14.02°C)	56.37°F (13.54°C)	0.86°F (0.48°C)	30th Warmest	Warmest since: 2007	2012
	Ties: 1992
Oct 2006–Sep 2008 24-Month	53.12°F (11.73°C)	52.02°F (11.12°C)	1.10°F (0.61°C)	107th Coolest	Coolest since: 2004	1913, 1918
Oct 2006–Sep 2008 24-Month	53.12°F (11.73°C)	52.02°F (11.12°C)	1.10°F (0.61°C)	20th Warmest	Warmest since: 2007	2017
Oct 2005–Sep 2008 36-Month	53.49°F (11.94°C)	52.00°F (11.11°C)	1.49°F (0.83°C)	112th Coolest	Coolest since: 2005	1917
	53.49°F (11.94°C)	52.00°F (11.11°C)	1.49°F (0.83°C)	14th Warmest	Warmest since: 2007	2018
	Ties: 2020
Oct 2004–Sep 2008 48-Month	53.56°F (11.98°C)	51.99°F (11.11°C)	1.57°F (0.87°C)	115th Coolest	Coolest since: 2006	1918
Oct 2004–Sep 2008 48-Month	53.56°F (11.98°C)	51.99°F (11.11°C)	1.57°F (0.87°C)	10th Warmest	Warmest since: 2007	2018
Oct 2003–Sep 2008 60-Month	53.46°F (11.92°C)	51.98°F (11.10°C)	1.48°F (0.82°C)	112th Coolest	Coolest since: 2005	1920
Oct 2003–Sep 2008 60-Month	53.46°F (11.92°C)	51.98°F (11.10°C)	1.48°F (0.82°C)	12th Warmest	Warmest since: 2007	2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published March 2023, retrieved on March 24, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings