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, August 2009

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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
August 2009 1-Month	59.18°F (15.10°C)	59.06°F (15.03°C)	0.12°F (0.07°C)	63rd Coolest	Coolest since: 2004	1950
August 2009 1-Month	59.18°F (15.10°C)	59.06°F (15.03°C)	0.12°F (0.07°C)	66th Warmest	Warmest since: 2008	2022
Jul–Aug 2009 2-Month	59.56°F (15.31°C)	59.80°F (15.44°C)	-0.24°F (-0.13°C)	38th Coolest	Coolest since: 2004	1950
Jul–Aug 2009 2-Month	59.56°F (15.31°C)	59.80°F (15.44°C)	-0.24°F (-0.13°C)	91st Warmest	Warmest since: 2008	2022
Jun–Aug 2009 3-Month	58.53°F (14.74°C)	58.41°F (14.67°C)	0.12°F (0.07°C)	57th Coolest	Coolest since: 2004	1915
Jun–Aug 2009 3-Month	58.53°F (14.74°C)	58.41°F (14.67°C)	0.12°F (0.07°C)	72nd Warmest	Warmest since: 2008	2021
May–Aug 2009 4-Month	56.19°F (13.44°C)	55.67°F (13.15°C)	0.52°F (0.29°C)	83rd Coolest	Coolest since: 2008	1907
	56.19°F (13.44°C)	55.67°F (13.15°C)	0.52°F (0.29°C)	46th Warmest	Warmest since: 2007	2018
	Ties: 1952
Apr–Aug 2009 5-Month	52.63°F (11.46°C)	52.25°F (11.25°C)	0.38°F (0.21°C)	72nd Coolest	Coolest since: 2008	1907
Apr–Aug 2009 5-Month	52.63°F (11.46°C)	52.25°F (11.25°C)	0.38°F (0.21°C)	57th Warmest	Warmest since: 2007	2012
Mar–Aug 2009 6-Month	49.01°F (9.45°C)	48.54°F (9.19°C)	0.47°F (0.26°C)	84th Coolest	Coolest since: 2008	1917
	49.01°F (9.45°C)	48.54°F (9.19°C)	0.47°F (0.26°C)	45th Warmest	Warmest since: 2007	2012
	Ties: 1896, 1949
Feb–Aug 2009 7-Month	45.58°F (7.54°C)	44.87°F (7.15°C)	0.71°F (0.39°C)	92nd Coolest	Coolest since: 2008	1917
Feb–Aug 2009 7-Month	45.58°F (7.54°C)	44.87°F (7.15°C)	0.71°F (0.39°C)	37th Warmest	Warmest since: 2007	2012
Jan–Aug 2009 8-Month	42.36°F (5.76°C)	41.73°F (5.41°C)	0.63°F (0.35°C)	88th Coolest	Coolest since: 2008	1917
Jan–Aug 2009 8-Month	42.36°F (5.76°C)	41.73°F (5.41°C)	0.63°F (0.35°C)	41st Warmest	Warmest since: 2007	2012
Dec 2008–Aug 2009 9-Month	40.00°F (4.44°C)	39.61°F (4.23°C)	0.39°F (0.21°C)	78th Coolest	Coolest since: 2008	1917
Dec 2008–Aug 2009 9-Month	40.00°F (4.44°C)	39.61°F (4.23°C)	0.39°F (0.21°C)	50th Warmest	Warmest since: 2007	2012
Nov 2008–Aug 2009 10-Month	39.29°F (4.05°C)	38.72°F (3.73°C)	0.57°F (0.32°C)	87th Coolest	Coolest since: 2008	1917
Nov 2008–Aug 2009 10-Month	39.29°F (4.05°C)	38.72°F (3.73°C)	0.57°F (0.32°C)	41st Warmest	Warmest since: 2007	2016
Oct 2008–Aug 2009 11-Month	39.46°F (4.14°C)	38.97°F (3.87°C)	0.49°F (0.27°C)	86th Coolest	Coolest since: 2008	1917
	39.46°F (4.14°C)	38.97°F (3.87°C)	0.49°F (0.27°C)	42nd Warmest	Warmest since: 2007	2016
	Ties: 1914
Sep 2008–Aug 2009 12-Month	40.54°F (4.74°C)	40.04°F (4.47°C)	0.50°F (0.27°C)	87th Coolest	Coolest since: 1997	1917
Sep 2008–Aug 2009 12-Month	40.54°F (4.74°C)	40.04°F (4.47°C)	0.50°F (0.27°C)	41st Warmest	Warmest since: 2008	2016
Mar 2008–Aug 2009 18-Month	43.18°F (6.21°C)	42.87°F (6.04°C)	0.31°F (0.17°C)	78th Coolest	Coolest since: 1997	1917
Mar 2008–Aug 2009 18-Month	43.18°F (6.21°C)	42.87°F (6.04°C)	0.31°F (0.17°C)	50th Warmest	Warmest since: 2008	2016
Sep 2007–Aug 2009 24-Month	40.58°F (4.77°C)	40.04°F (4.47°C)	0.54°F (0.30°C)	88th Coolest	Coolest since: 1997	1918
Sep 2007–Aug 2009 24-Month	40.58°F (4.77°C)	40.04°F (4.47°C)	0.54°F (0.30°C)	39th Warmest	Warmest since: 2008	2017
Sep 2006–Aug 2009 36-Month	40.84°F (4.91°C)	40.02°F (4.46°C)	0.82°F (0.45°C)	98th Coolest	Coolest since: 1997	1918
Sep 2006–Aug 2009 36-Month	40.84°F (4.91°C)	40.02°F (4.46°C)	0.82°F (0.45°C)	28th Warmest	Warmest since: 2008	2017
Sep 2005–Aug 2009 48-Month	41.22°F (5.12°C)	40.01°F (4.45°C)	1.21°F (0.67°C)	105th Coolest	Coolest since: 2004	1918
Sep 2005–Aug 2009 48-Month	41.22°F (5.12°C)	40.01°F (4.45°C)	1.21°F (0.67°C)	20th Warmest	Warmest since: 2008	2018
Sep 2004–Aug 2009 60-Month	41.38°F (5.21°C)	40.00°F (4.44°C)	1.38°F (0.77°C)	109th Coolest	Coolest since: 2005	1920
Sep 2004–Aug 2009 60-Month	41.38°F (5.21°C)	40.00°F (4.44°C)	1.38°F (0.77°C)	15th Warmest	Warmest since: 2008	2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: National Rankings, published May 2023, retrieved on June 1, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/national/rankings