Regional Rankings

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Please note, Palmer Indices are not available for NWS Regions. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Great Basin

Average Temperature Rankings, September 2011

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 2011 1-Month	64.4°F (18.0°C)	60.8°F (16.0°C)	3.6°F (2.0°C)	117th Coolest	Coolest since: 2010	1912
September 2011 1-Month	64.4°F (18.0°C)	60.8°F (16.0°C)	3.6°F (2.0°C)	12th Warmest	Warmest since: 2009	2022
Aug–Sep 2011 2-Month	68.2°F (20.1°C)	65.2°F (18.4°C)	3.0°F (1.7°C)	122nd Coolest	Coolest since: 2010	1900
Aug–Sep 2011 2-Month	68.2°F (20.1°C)	65.2°F (18.4°C)	3.0°F (1.7°C)	7th Warmest	Warmest since: 2001	2020
Jul–Sep 2011 3-Month	69.2°F (20.7°C)	67.2°F (19.6°C)	2.0°F (1.1°C)	111th Coolest	Coolest since: 2010	1912
	69.2°F (20.7°C)	67.2°F (19.6°C)	2.0°F (1.1°C)	18th Warmest	Warmest since: 2009	2022
	Ties: 1931, 1937, 1998, 2002
Jun–Sep 2011 4-Month	67.4°F (19.7°C)	66.3°F (19.1°C)	1.1°F (0.6°C)	96th Coolest	Coolest since: 2009	1907
	67.4°F (19.7°C)	66.3°F (19.1°C)	1.1°F (0.6°C)	33rd Warmest	Warmest since: 2010	2021
	Ties: 1961, 1974, 2009, 2019
May–Sep 2011 5-Month	63.9°F (17.7°C)	63.9°F (17.7°C)	0.0°F (0.0°C)	55th Coolest	Coolest since: 2010	1907, 1965
	63.9°F (17.7°C)	63.9°F (17.7°C)	0.0°F (0.0°C)	74th Warmest	Warmest since: 2009	2021
	Ties: 1929, 1949, 1951, 1977
Apr–Sep 2011 6-Month	60.5°F (15.8°C)	60.9°F (16.1°C)	-0.4°F (-0.3°C)	50th Coolest	Coolest since: 2010	1912
	60.5°F (15.8°C)	60.9°F (16.1°C)	-0.4°F (-0.3°C)	79th Warmest	Warmest since: 2009	2021
	Ties: 1904, 1942
Mar–Sep 2011 7-Month	57.5°F (14.2°C)	57.6°F (14.2°C)	-0.1°F (0.0°C)	57th Coolest	Coolest since: 2010	1912
	57.5°F (14.2°C)	57.6°F (14.2°C)	-0.1°F (0.0°C)	72nd Warmest	Warmest since: 2009	1934, 2007, 2021
	Ties: 1932, 1951, 1977
Feb–Sep 2011 8-Month	54.2°F (12.3°C)	54.5°F (12.5°C)	-0.3°F (-0.2°C)	45th Coolest	Coolest since: 1998	1903
	54.2°F (12.3°C)	54.5°F (12.5°C)	-0.3°F (-0.2°C)	84th Warmest	Warmest since: 2010	1934, 2015
	Ties: 1916, 1950, 1967, 1970, 1980
Jan–Sep 2011 9-Month	51.6°F (10.9°C)	51.6°F (10.9°C)	0.0°F (0.0°C)	51st Coolest	Coolest since: 1993	1917
	51.6°F (10.9°C)	51.6°F (10.9°C)	0.0°F (0.0°C)	78th Warmest	Warmest since: 2010	2015
	Ties: 1905, 1909, 1924, 1967, 1991
Dec 2010–Sep 2011 10-Month	49.9°F (9.9°C)	49.4°F (9.7°C)	0.5°F (0.2°C)	74th Coolest	Coolest since: 2010	1917
	49.9°F (9.9°C)	49.4°F (9.7°C)	0.5°F (0.2°C)	54th Warmest	Warmest since: 2009	2015
	Ties: 1928, 1939, 1966, 1972, 1980, 2019
Nov 2010–Sep 2011 11-Month	48.6°F (9.2°C)	48.3°F (9.1°C)	0.3°F (0.1°C)	64th Coolest	Coolest since: 2010	1917
	48.6°F (9.2°C)	48.3°F (9.1°C)	0.3°F (0.1°C)	64th Warmest	Warmest since: 2009	2015
	Ties: 1905, 1970, 1972, 1989
Oct 2010–Sep 2011 12-Month	48.9°F (9.4°C)	48.5°F (9.2°C)	0.4°F (0.2°C)	76th Coolest	Coolest since: 2010	1917
	48.9°F (9.4°C)	48.5°F (9.2°C)	0.4°F (0.2°C)	52nd Warmest	Warmest since: 2009	2015
	Ties: 1927
Apr 2010–Sep 2011 18-Month	52.7°F (11.5°C)	52.5°F (11.4°C)	0.2°F (0.1°C)	62nd Coolest	Coolest since: 1999	1917
Apr 2010–Sep 2011 18-Month	52.7°F (11.5°C)	52.5°F (11.4°C)	0.2°F (0.1°C)	66th Warmest	Warmest since: 2010	2015
Oct 2009–Sep 2011 24-Month	48.5°F (9.2°C)	48.4°F (9.1°C)	0.1°F (0.1°C)	63rd Coolest	Coolest since: 1986	1913
	48.5°F (9.2°C)	48.4°F (9.1°C)	0.1°F (0.1°C)	64th Warmest	Warmest since: 2010	2016
	Ties: 1902, 1905, 1943, 1957, 1968, 1970, 1986
Oct 2008–Sep 2011 36-Month	49.1°F (9.5°C)	48.4°F (9.1°C)	0.7°F (0.4°C)	87th Coolest	Coolest since: 2010	1917
	49.1°F (9.5°C)	48.4°F (9.1°C)	0.7°F (0.4°C)	39th Warmest	Warmest since: 2010	2017
	Ties: 2010
Oct 2007–Sep 2011 48-Month	49.0°F (9.4°C)	48.4°F (9.1°C)	0.6°F (0.3°C)	86th Coolest	Coolest since: 1993	1915
	49.0°F (9.4°C)	48.4°F (9.1°C)	0.6°F (0.3°C)	39th Warmest	Warmest since: 2010	2018
	Ties: 1928, 1940, 1960, 1962, 1993
Oct 2006–Sep 2011 60-Month	49.3°F (9.6°C)	48.4°F (9.1°C)	0.9°F (0.5°C)	95th Coolest	Coolest since: 1999	1917
	49.3°F (9.6°C)	48.4°F (9.1°C)	0.9°F (0.5°C)	29th Warmest	Warmest since: 2010	2018
	Ties: 1994

Citing This Page

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