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 2010

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 2010 1-Month	63.3°F (17.4°C)	60.8°F (16.0°C)	2.5°F (1.4°C)	105th Coolest	Coolest since: 2008	1912
	63.3°F (17.4°C)	60.8°F (16.0°C)	2.5°F (1.4°C)	24th Warmest	Warmest since: 2009	2022
	Ties: 1995
Aug–Sep 2010 2-Month	66.3°F (19.1°C)	65.1°F (18.4°C)	1.2°F (0.7°C)	87th Coolest	Coolest since: 2006	1900
	66.3°F (19.1°C)	65.1°F (18.4°C)	1.2°F (0.7°C)	42nd Warmest	Warmest since: 2009	2020
	Ties: 1939, 1955, 1987
Jul–Sep 2010 3-Month	68.6°F (20.3°C)	67.2°F (19.6°C)	1.4°F (0.7°C)	98th Coolest	Coolest since: 2006	1912
	68.6°F (20.3°C)	67.2°F (19.6°C)	1.4°F (0.7°C)	31st Warmest	Warmest since: 2009	2022
	Ties: 1953, 1991, 1996, 2016
Jun–Sep 2010 4-Month	67.5°F (19.7°C)	66.2°F (19.0°C)	1.3°F (0.7°C)	97th Coolest	Coolest since: 2009	1907
Jun–Sep 2010 4-Month	67.5°F (19.7°C)	66.2°F (19.0°C)	1.3°F (0.7°C)	32nd Warmest	Warmest since: 2008	2021
May–Sep 2010 5-Month	63.8°F (17.7°C)	63.9°F (17.7°C)	-0.1°F (0.0°C)	52nd Coolest	Coolest since: 1999	1907, 1965
	63.8°F (17.7°C)	63.9°F (17.7°C)	-0.1°F (0.0°C)	77th Warmest	Warmest since: 2009	2021
	Ties: 1932, 1970
Apr–Sep 2010 6-Month	60.4°F (15.8°C)	60.8°F (16.0°C)	-0.4°F (-0.2°C)	48th Coolest	Coolest since: 1999	1912
	60.4°F (15.8°C)	60.8°F (16.0°C)	-0.4°F (-0.2°C)	81st Warmest	Warmest since: 2009	2021
	Ties: 1901
Mar–Sep 2010 7-Month	57.3°F (14.1°C)	57.6°F (14.2°C)	-0.3°F (-0.1°C)	51st Coolest	Coolest since: 1999	1912
	57.3°F (14.1°C)	57.6°F (14.2°C)	-0.3°F (-0.1°C)	78th Warmest	Warmest since: 2009	1934, 2007, 2021
	Ties: 1915, 1978
Feb–Sep 2010 8-Month	54.4°F (12.4°C)	54.5°F (12.5°C)	-0.1°F (-0.1°C)	53rd Coolest	Coolest since: 1999	1903
	54.4°F (12.4°C)	54.5°F (12.5°C)	-0.1°F (-0.1°C)	76th Warmest	Warmest since: 2009	1934, 2015
	Ties: 1938, 1968, 1978, 1999
Jan–Sep 2010 9-Month	51.8°F (11.0°C)	51.6°F (10.9°C)	0.2°F (0.1°C)	60th Coolest	Coolest since: 1998	1917
	51.8°F (11.0°C)	51.6°F (10.9°C)	0.2°F (0.1°C)	69th Warmest	Warmest since: 2009	2015
	Ties: 1927, 1939, 1951, 1980, 1998
Dec 2009–Sep 2010 10-Month	49.1°F (9.5°C)	49.4°F (9.7°C)	-0.3°F (-0.2°C)	43rd Coolest	Coolest since: 1993	1917
	49.1°F (9.5°C)	49.4°F (9.7°C)	-0.3°F (-0.2°C)	85th Warmest	Warmest since: 2009	2015
	Ties: 1902, 1904, 1983
Nov 2009–Sep 2010 11-Month	48.2°F (9.0°C)	48.3°F (9.1°C)	-0.1°F (-0.1°C)	45th Coolest	Coolest since: 1993	1917
	48.2°F (9.0°C)	48.3°F (9.1°C)	-0.1°F (-0.1°C)	83rd Warmest	Warmest since: 2009	2015
	Ties: 1924, 1939, 1971, 1976
Oct 2009–Sep 2010 12-Month	48.1°F (8.9°C)	48.4°F (9.1°C)	-0.3°F (-0.2°C)	39th Coolest	Coolest since: 1993	1917
	48.1°F (8.9°C)	48.4°F (9.1°C)	-0.3°F (-0.2°C)	89th Warmest	Warmest since: 2009	2015
	Ties: 1916, 1924, 1925, 1950, 1982
Apr 2009–Sep 2010 18-Month	52.9°F (11.6°C)	52.6°F (11.4°C)	0.3°F (0.2°C)	70th Coolest	Coolest since: 1999	1917
	52.9°F (11.6°C)	52.6°F (11.4°C)	0.3°F (0.2°C)	58th Warmest	Warmest since: 2009	2015
	Ties: 1919, 1947, 1991, 1998
Oct 2008–Sep 2010 24-Month	49.2°F (9.6°C)	48.4°F (9.1°C)	0.8°F (0.5°C)	85th Coolest	Coolest since: 1999	1913
	49.2°F (9.6°C)	48.4°F (9.1°C)	0.8°F (0.5°C)	42nd Warmest	Warmest since: 2009	2016
	Ties: 1936, 1978, 1998
Oct 2007–Sep 2010 36-Month	49.1°F (9.5°C)	48.5°F (9.2°C)	0.6°F (0.3°C)	87th Coolest	Coolest since: 1999	1917
	49.1°F (9.5°C)	48.5°F (9.2°C)	0.6°F (0.3°C)	39th Warmest	Warmest since: 2009	2017
	Ties: 2011
Oct 2006–Sep 2010 48-Month	49.4°F (9.7°C)	48.4°F (9.1°C)	1.0°F (0.6°C)	98th Coolest	Coolest since: 1998	1915
	49.4°F (9.7°C)	48.4°F (9.1°C)	1.0°F (0.6°C)	27th Warmest	Warmest since: 2009	2018
	Ties: 1989, 1998
Oct 2005–Sep 2010 60-Month	49.6°F (9.8°C)	48.4°F (9.1°C)	1.2°F (0.7°C)	104th Coolest	Coolest since: 1999	1917
	49.6°F (9.8°C)	48.4°F (9.1°C)	1.2°F (0.7°C)	20th Warmest	Warmest since: 2009	2018
	Ties: 1996, 1998, 2013

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on January 27, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings