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 1939

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1939 1-Month	61.2°F (16.2°C)	60.8°F (16.0°C)	0.4°F (0.2°C)	62nd Coolest	Coolest since: 1936	1912
	61.2°F (16.2°C)	60.8°F (16.0°C)	0.4°F (0.2°C)	67th Warmest	Warmest since: 1938	2022
	Ties: 1977, 1980, 1993
Aug–Sep 1939 2-Month	66.3°F (19.1°C)	65.1°F (18.4°C)	1.2°F (0.7°C)	87th Coolest	Coolest since: 1936	1900
	66.3°F (19.1°C)	65.1°F (18.4°C)	1.2°F (0.7°C)	42nd Warmest	Warmest since: 1938	2020
	Ties: 1955, 1987, 2010
Jul–Sep 1939 3-Month	68.4°F (20.2°C)	67.2°F (19.6°C)	1.2°F (0.6°C)	93rd Coolest	Coolest since: 1938	1912
	68.4°F (20.2°C)	67.2°F (19.6°C)	1.2°F (0.6°C)	36th Warmest	Warmest since: 1937	2022
	Ties: 1922, 1935
Jun–Sep 1939 4-Month	67.0°F (19.4°C)	66.2°F (19.0°C)	0.8°F (0.4°C)	83rd Coolest	Coolest since: 1938	1907
	67.0°F (19.4°C)	66.2°F (19.0°C)	0.8°F (0.4°C)	46th Warmest	Warmest since: 1938	2021
	Ties: 1938, 1979
May–Sep 1939 5-Month	65.0°F (18.3°C)	63.9°F (17.7°C)	1.1°F (0.6°C)	92nd Coolest	Coolest since: 1938	1907, 1965
	65.0°F (18.3°C)	63.9°F (17.7°C)	1.1°F (0.6°C)	37th Warmest	Warmest since: 1937	2021
	Ties: 1922
Apr–Sep 1939 6-Month	62.4°F (16.9°C)	60.8°F (16.0°C)	1.6°F (0.9°C)	100th Coolest	Coolest since: 1938	1912
	62.4°F (16.9°C)	60.8°F (16.0°C)	1.6°F (0.9°C)	29th Warmest	Warmest since: 1936	2021
	Ties: 1910, 1926, 2009
Mar–Sep 1939 7-Month	59.1°F (15.1°C)	57.6°F (14.2°C)	1.5°F (0.9°C)	97th Coolest	Coolest since: 1938	1912
	59.1°F (15.1°C)	57.6°F (14.2°C)	1.5°F (0.9°C)	32nd Warmest	Warmest since: 1936	1934, 2007, 2021
	Ties: 2009
Feb–Sep 1939 8-Month	54.7°F (12.6°C)	54.5°F (12.5°C)	0.2°F (0.1°C)	70th Coolest	Coolest since: 1938	1903
	54.7°F (12.6°C)	54.5°F (12.5°C)	0.2°F (0.1°C)	59th Warmest	Warmest since: 1936	1934, 2015
	Ties: 1900, 1957, 1969, 1977, 1979, 2019
Jan–Sep 1939 9-Month	51.8°F (11.0°C)	51.6°F (10.9°C)	0.2°F (0.1°C)	60th Coolest	Coolest since: 1937	1917
	51.8°F (11.0°C)	51.6°F (10.9°C)	0.2°F (0.1°C)	69th Warmest	Warmest since: 1938	2015
	Ties: 1927, 1951, 1980, 1998, 2010
Dec 1938–Sep 1939 10-Month	49.9°F (9.9°C)	49.4°F (9.7°C)	0.5°F (0.2°C)	74th Coolest	Coolest since: 1937	1917
	49.9°F (9.9°C)	49.4°F (9.7°C)	0.5°F (0.2°C)	54th Warmest	Warmest since: 1938	2015
	Ties: 1928, 1966, 1972, 1980, 2011, 2019
Nov 1938–Sep 1939 11-Month	48.2°F (9.0°C)	48.3°F (9.1°C)	-0.1°F (-0.1°C)	45th Coolest	Coolest since: 1937	1917
	48.2°F (9.0°C)	48.3°F (9.1°C)	-0.1°F (-0.1°C)	83rd Warmest	Warmest since: 1938	2015
	Ties: 1924, 1971, 1976, 2010
Oct 1938–Sep 1939 12-Month	48.3°F (9.1°C)	48.4°F (9.1°C)	-0.1°F (0.0°C)	48th Coolest	Coolest since: 1937	1917
	48.3°F (9.1°C)	48.4°F (9.1°C)	-0.1°F (0.0°C)	80th Warmest	Warmest since: 1938	2015
	Ties: 1908, 1970, 1972, 1984, 1995
Apr 1938–Sep 1939 18-Month	52.6°F (11.4°C)	52.6°F (11.4°C)	0.0°F (0.0°C)	56th Coolest	Coolest since: 1937	1917
	52.6°F (11.4°C)	52.6°F (11.4°C)	0.0°F (0.0°C)	72nd Warmest	Warmest since: 1938	2015
	Ties: 1902, 1925, 1950, 1956, 1958
Oct 1937–Sep 1939 24-Month	48.9°F (9.4°C)	48.4°F (9.1°C)	0.5°F (0.3°C)	77th Coolest	Coolest since: 1938	1913
	48.9°F (9.4°C)	48.4°F (9.1°C)	0.5°F (0.3°C)	50th Warmest	Warmest since: 1936	2016
	Ties: 1926, 1931, 1991, 1994
Oct 1936–Sep 1939 36-Month	48.3°F (9.1°C)	48.4°F (9.1°C)	-0.1°F (0.0°C)	49th Coolest	Coolest since: 1933	1917
	48.3°F (9.1°C)	48.4°F (9.1°C)	-0.1°F (0.0°C)	77th Warmest	Warmest since: 1938	2017
	Ties: 1931, 1952
Oct 1935–Sep 1939 48-Month	48.5°F (9.2°C)	48.4°F (9.1°C)	0.1°F (0.1°C)	56th Coolest	Coolest since: 1933	1915
	48.5°F (9.2°C)	48.4°F (9.1°C)	0.1°F (0.1°C)	69th Warmest	Warmest since: 1938	2018
	Ties: 1931, 1953, 1968, 1970
Oct 1934–Sep 1939 60-Month	48.7°F (9.3°C)	48.4°F (9.1°C)	0.3°F (0.2°C)	72nd Coolest	Coolest since: 1935	1917
	48.7°F (9.3°C)	48.4°F (9.1°C)	0.3°F (0.2°C)	52nd Warmest	Warmest since: 1938	2018
	Ties: 1934, 1935, 1944, 1954, 1970, 1983

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on February 6, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings