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.

Maximum 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	77.99°F (25.55°C)	77.81°F (25.45°C)	0.18°F (0.10°C)	62nd Coolest	Coolest since: 2006	1965
September 2008 1-Month	77.99°F (25.55°C)	77.81°F (25.45°C)	0.18°F (0.10°C)	67th Warmest	Warmest since: 2007	1998
Aug–Sep 2008 2-Month	81.47°F (27.48°C)	81.48°F (27.49°C)	-0.01°F (-0.01°C)	55th Coolest	Coolest since: 2006	1965
Aug–Sep 2008 2-Month	81.47°F (27.48°C)	81.48°F (27.49°C)	-0.01°F (-0.01°C)	74th Warmest	Warmest since: 2007	1998
Jul–Sep 2008 3-Month	83.32°F (28.51°C)	83.21°F (28.45°C)	0.11°F (0.06°C)	67th Coolest	Coolest since: 2004	1912
	83.32°F (28.51°C)	83.21°F (28.45°C)	0.11°F (0.06°C)	62nd Warmest	Warmest since: 2007	1936
	Ties: 1899
Jun–Sep 2008 4-Month	83.15°F (28.42°C)	82.74°F (28.19°C)	0.41°F (0.23°C)	75th Coolest	Coolest since: 2004	1915
Jun–Sep 2008 4-Month	83.15°F (28.42°C)	82.74°F (28.19°C)	0.41°F (0.23°C)	54th Warmest	Warmest since: 2007	1936
May–Sep 2008 5-Month	80.95°F (27.19°C)	80.78°F (27.10°C)	0.17°F (0.09°C)	64th Coolest	Coolest since: 2004	1915
	80.95°F (27.19°C)	80.78°F (27.10°C)	0.17°F (0.09°C)	65th Warmest	Warmest since: 2007	1936
	Ties: 1991
Apr–Sep 2008 6-Month	78.03°F (25.57°C)	77.90°F (25.50°C)	0.13°F (0.07°C)	59th Coolest	Coolest since: 2004	1907
Apr–Sep 2008 6-Month	78.03°F (25.57°C)	77.90°F (25.50°C)	0.13°F (0.07°C)	70th Warmest	Warmest since: 2007	2012
Mar–Sep 2008 7-Month	74.61°F (23.67°C)	74.35°F (23.53°C)	0.26°F (0.14°C)	70th Coolest	Coolest since: 1999	1912
	74.61°F (23.67°C)	74.35°F (23.53°C)	0.26°F (0.14°C)	59th Warmest	Warmest since: 2007	2012
	Ties: 2013
Feb–Sep 2008 8-Month	71.04°F (21.69°C)	70.66°F (21.48°C)	0.38°F (0.21°C)	79th Coolest	Coolest since: 1997	1912
	71.04°F (21.69°C)	70.66°F (21.48°C)	0.38°F (0.21°C)	50th Warmest	Warmest since: 2007	2012
	Ties: 1992
Jan–Sep 2008 9-Month	67.67°F (19.82°C)	67.30°F (19.61°C)	0.37°F (0.21°C)	78th Coolest	Coolest since: 1997	1912
Jan–Sep 2008 9-Month	67.67°F (19.82°C)	67.30°F (19.61°C)	0.37°F (0.21°C)	51st Warmest	Warmest since: 2007	2012
Dec 2007–Sep 2008 10-Month	65.20°F (18.44°C)	64.86°F (18.26°C)	0.34°F (0.18°C)	75th Coolest	Coolest since: 1997	1912
Dec 2007–Sep 2008 10-Month	65.20°F (18.44°C)	64.86°F (18.26°C)	0.34°F (0.18°C)	53rd Warmest	Warmest since: 2007	2012
Nov 2007–Sep 2008 11-Month	64.36°F (17.98°C)	63.75°F (17.64°C)	0.61°F (0.34°C)	92nd Coolest	Coolest since: 2004	1912
Nov 2007–Sep 2008 11-Month	64.36°F (17.98°C)	63.75°F (17.64°C)	0.61°F (0.34°C)	36th Warmest	Warmest since: 2007	2012
Oct 2007–Sep 2008 12-Month	64.74°F (18.19°C)	64.01°F (17.78°C)	0.73°F (0.41°C)	94th Coolest	Coolest since: 2003	1912
Oct 2007–Sep 2008 12-Month	64.74°F (18.19°C)	64.01°F (17.78°C)	0.73°F (0.41°C)	34th Warmest	Warmest since: 2007	2012
Apr 2007–Sep 2008 18-Month	69.58°F (20.88°C)	68.64°F (20.36°C)	0.94°F (0.52°C)	104th Coolest	Coolest since: 2005	1912
	69.58°F (20.88°C)	68.64°F (20.36°C)	0.94°F (0.52°C)	24th Warmest	Warmest since: 2007	2012
	Ties: 1931
Oct 2006–Sep 2008 24-Month	65.17°F (18.43°C)	64.00°F (17.78°C)	1.17°F (0.65°C)	109th Coolest	Coolest since: 2005	1913
Oct 2006–Sep 2008 24-Month	65.17°F (18.43°C)	64.00°F (17.78°C)	1.17°F (0.65°C)	18th Warmest	Warmest since: 2007	2017
Oct 2005–Sep 2008 36-Month	65.58°F (18.66°C)	63.98°F (17.77°C)	1.60°F (0.89°C)	118th Coolest	Coolest since: 2006	1917
	65.58°F (18.66°C)	63.98°F (17.77°C)	1.60°F (0.89°C)	8th Warmest	Warmest since: 2007	2018
	Ties: 2001
Oct 2004–Sep 2008 48-Month	65.53°F (18.63°C)	63.97°F (17.76°C)	1.56°F (0.87°C)	119th Coolest	Coolest since: 2006	1915
Oct 2004–Sep 2008 48-Month	65.53°F (18.63°C)	63.97°F (17.76°C)	1.56°F (0.87°C)	6th Warmest	Warmest since: 2007	2018
Oct 2003–Sep 2008 60-Month	65.38°F (18.54°C)	63.96°F (17.76°C)	1.42°F (0.78°C)	113th Coolest	Coolest since: 2007	1907
Oct 2003–Sep 2008 60-Month	65.38°F (18.54°C)	63.96°F (17.76°C)	1.42°F (0.78°C)	11th Warmest	Warmest since: 2006	2016

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