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 1931

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1931 1-Month	60.1°F (15.6°C)	60.8°F (16.0°C)	-0.7°F (-0.4°C)	39th Coolest	Coolest since: 1930	1912
	60.1°F (15.6°C)	60.8°F (16.0°C)	-0.7°F (-0.4°C)	90th Warmest	Warmest since: 1928	2022
	Ties: 1920, 1923
Aug–Sep 1931 2-Month	65.8°F (18.8°C)	65.1°F (18.4°C)	0.7°F (0.4°C)	76th Coolest	Coolest since: 1930	1900
	65.8°F (18.8°C)	65.1°F (18.4°C)	0.7°F (0.4°C)	53rd Warmest	Warmest since: 1922	2020
	Ties: 1897, 1949, 1962
Jul–Sep 1931 3-Month	69.2°F (20.7°C)	67.2°F (19.6°C)	2.0°F (1.1°C)	111th Coolest	Coolest since: 1930	1912
	69.2°F (20.7°C)	67.2°F (19.6°C)	2.0°F (1.1°C)	18th Warmest	Warmest to Date	2022
	Ties: 1937, 1998, 2002, 2011
Jun–Sep 1931 4-Month	68.4°F (20.2°C)	66.3°F (19.1°C)	2.1°F (1.1°C)	112th Coolest	Coolest since: 1930	1907
	68.4°F (20.2°C)	66.3°F (19.1°C)	2.1°F (1.1°C)	17th Warmest	Warmest to Date	2021
	Ties: 2014
May–Sep 1931 5-Month	66.0°F (18.9°C)	63.8°F (17.7°C)	2.2°F (1.2°C)	112th Coolest	Coolest since: 1930	1907, 1965
	66.0°F (18.9°C)	63.8°F (17.7°C)	2.2°F (1.2°C)	17th Warmest	Warmest since: 1919	2021
	Ties: 1919, 2002
Apr–Sep 1931 6-Month	63.0°F (17.2°C)	60.8°F (16.0°C)	2.2°F (1.2°C)	109th Coolest	Coolest since: 1930	1912
	63.0°F (17.2°C)	60.8°F (16.0°C)	2.2°F (1.2°C)	20th Warmest	Warmest since: 1919	2021
	Ties: 1919, 1981, 2014
Mar–Sep 1931 7-Month	59.6°F (15.3°C)	57.7°F (14.3°C)	1.9°F (1.0°C)	107th Coolest	Coolest since: 1930	1912
	59.6°F (15.3°C)	57.7°F (14.3°C)	1.9°F (1.0°C)	22nd Warmest	Warmest since: 1910	1934, 2007, 2021
	Ties: 1989
Feb–Sep 1931 8-Month	56.4°F (13.6°C)	54.4°F (12.4°C)	2.0°F (1.2°C)	108th Coolest	Coolest since: 1930	1903
	56.4°F (13.6°C)	54.4°F (12.4°C)	2.0°F (1.2°C)	21st Warmest	Warmest since: 1926	1934, 2015
	Ties: 1996
Jan–Sep 1931 9-Month	53.3°F (11.8°C)	51.6°F (10.9°C)	1.7°F (0.9°C)	106th Coolest	Coolest since: 1930	1917
	53.3°F (11.8°C)	51.6°F (10.9°C)	1.7°F (0.9°C)	23rd Warmest	Warmest since: 1926	2015
	Ties: 2006
Dec 1930–Sep 1931 10-Month	50.3°F (10.2°C)	49.4°F (9.7°C)	0.9°F (0.5°C)	88th Coolest	Coolest since: 1930	1917
Dec 1930–Sep 1931 10-Month	50.3°F (10.2°C)	49.4°F (9.7°C)	0.9°F (0.5°C)	40th Warmest	Warmest since: 1926	2015
Nov 1930–Sep 1931 11-Month	48.8°F (9.3°C)	48.3°F (9.1°C)	0.5°F (0.2°C)	77th Coolest	Coolest since: 1929	1917
	48.8°F (9.3°C)	48.3°F (9.1°C)	0.5°F (0.2°C)	51st Warmest	Warmest since: 1930	2015
	Ties: 1914, 1956, 1963, 2008, 2019
Oct 1930–Sep 1931 12-Month	48.7°F (9.3°C)	48.5°F (9.2°C)	0.2°F (0.1°C)	68th Coolest	Coolest since: 1929	1917
	48.7°F (9.3°C)	48.5°F (9.2°C)	0.2°F (0.1°C)	60th Warmest	Warmest since: 1930	2015
	Ties: 1902, 1921, 1977
Apr 1930–Sep 1931 18-Month	52.8°F (11.6°C)	52.6°F (11.4°C)	0.2°F (0.2°C)	64th Coolest	Coolest since: 1930	1917
	52.8°F (11.6°C)	52.6°F (11.4°C)	0.2°F (0.2°C)	64th Warmest	Warmest since: 1930	2015
	Ties: 1930, 1993
Oct 1929–Sep 1931 24-Month	48.9°F (9.4°C)	48.4°F (9.1°C)	0.5°F (0.3°C)	77th Coolest	Coolest since: 1930	1913
	48.9°F (9.4°C)	48.4°F (9.1°C)	0.5°F (0.3°C)	50th Warmest	Warmest since: 1928	2016
	Ties: 1926, 1939, 1991, 1994
Oct 1928–Sep 1931 36-Month	48.3°F (9.1°C)	48.5°F (9.2°C)	-0.2°F (-0.1°C)	49th Coolest	Coolest since: 1925	1917
	48.3°F (9.1°C)	48.5°F (9.2°C)	-0.2°F (-0.1°C)	77th Warmest	Warmest since: 1930	2017
	Ties: 1939, 1952
Oct 1927–Sep 1931 48-Month	48.5°F (9.2°C)	48.4°F (9.1°C)	0.1°F (0.1°C)	56th Coolest	Coolest since: 1926	1915
	48.5°F (9.2°C)	48.4°F (9.1°C)	0.1°F (0.1°C)	69th Warmest	Warmest since: 1930	2018
	Ties: 1939, 1953, 1968, 1970
Oct 1926–Sep 1931 60-Month	48.6°F (9.2°C)	48.4°F (9.1°C)	0.2°F (0.1°C)	65th Coolest	Coolest since: 1929	1917
	48.6°F (9.2°C)	48.4°F (9.1°C)	0.2°F (0.1°C)	59th Warmest	Warmest since: 1930	2018
	Ties: 1929, 1980

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on January 29, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings