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 1900

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1900 1-Month	55.6°F (13.1°C)	60.8°F (16.0°C)	-5.2°F (-2.9°C)	3rd Coolest	Coolest since: 1900	1912
	55.6°F (13.1°C)	60.8°F (16.0°C)	-5.2°F (-2.9°C)	126th Warmest	Warmest since: 1899	2022
	Ties: 1986
Aug–Sep 1900 2-Month	60.7°F (15.9°C)	65.1°F (18.4°C)	-4.4°F (-2.5°C)	1st Coolest	Coolest since: 1900	1900
Aug–Sep 1900 2-Month	60.7°F (15.9°C)	65.1°F (18.4°C)	-4.4°F (-2.5°C)	128th Warmest	Warmest since: 1899	2020
Jul–Sep 1900 3-Month	64.1°F (17.8°C)	67.2°F (19.6°C)	-3.1°F (-1.8°C)	3rd Coolest	Coolest since: 1900	1912
Jul–Sep 1900 3-Month	64.1°F (17.8°C)	67.2°F (19.6°C)	-3.1°F (-1.8°C)	126th Warmest	Warmest since: 1899	2022
Jun–Sep 1900 4-Month	65.0°F (18.3°C)	66.2°F (19.0°C)	-1.2°F (-0.7°C)	12th Coolest	Coolest since: 1900	1907
	65.0°F (18.3°C)	66.2°F (19.0°C)	-1.2°F (-0.7°C)	117th Warmest	Warmest since: 1899	2021
	Ties: 1906, 1925, 1964
May–Sep 1900 5-Month	63.3°F (17.4°C)	63.9°F (17.7°C)	-0.6°F (-0.3°C)	34th Coolest	Coolest since: 1899	1907, 1965
	63.3°F (17.4°C)	63.9°F (17.7°C)	-0.6°F (-0.3°C)	95th Warmest	Warmest since: 1898	2021
	Ties: 1896, 1920, 1927, 1948, 1962
Apr–Sep 1900 6-Month	59.9°F (15.5°C)	60.8°F (16.0°C)	-0.9°F (-0.5°C)	28th Coolest	Coolest since: 1899	1912
	59.9°F (15.5°C)	60.8°F (16.0°C)	-0.9°F (-0.5°C)	101st Warmest	Warmest since: 1898	2021
	Ties: 1905, 1967, 1993, 1999
Mar–Sep 1900 7-Month	57.6°F (14.2°C)	57.7°F (14.3°C)	-0.1°F (-0.1°C)	61st Coolest	Coolest since: 1899	1912
	57.6°F (14.2°C)	57.7°F (14.3°C)	-0.1°F (-0.1°C)	68th Warmest	Warmest since: 1898	1934, 2007, 2021
	Ties: 1924, 1938, 1984
Feb–Sep 1900 8-Month	54.7°F (12.6°C)	54.5°F (12.5°C)	0.2°F (0.1°C)	70th Coolest	Coolest since: 1899	1903
	54.7°F (12.6°C)	54.5°F (12.5°C)	0.2°F (0.1°C)	59th Warmest	Warmest since: 1898	1934, 2015
	Ties: 1939, 1957, 1969, 1977, 1979, 2019
Jan–Sep 1900 9-Month	52.5°F (11.4°C)	51.6°F (10.9°C)	0.9°F (0.5°C)	89th Coolest	Coolest since: 1899	1917
	52.5°F (11.4°C)	51.6°F (10.9°C)	0.9°F (0.5°C)	40th Warmest	Warmest to Date	2015
	Ties: 1959
Dec 1899–Sep 1900 10-Month	50.0°F (10.0°C)	49.4°F (9.7°C)	0.6°F (0.3°C)	78th Coolest	Coolest since: 1899	1917
	50.0°F (10.0°C)	49.4°F (9.7°C)	0.6°F (0.3°C)	50th Warmest	Warmest to Date	2015
	Ties: 1935, 1953, 1988
Nov 1899–Sep 1900 11-Month	49.1°F (9.5°C)	48.3°F (9.1°C)	0.8°F (0.4°C)	86th Coolest	Coolest since: 1899	1917
	49.1°F (9.5°C)	48.3°F (9.1°C)	0.8°F (0.4°C)	42nd Warmest	Warmest to Date	2015
	Ties: 1966, 1974
Oct 1899–Sep 1900 12-Month	48.8°F (9.3°C)	48.4°F (9.1°C)	0.4°F (0.2°C)	74th Coolest	Coolest since: 1899	1917
	48.8°F (9.3°C)	48.4°F (9.1°C)	0.4°F (0.2°C)	54th Warmest	Warmest to Date	2015
	Ties: 1958, 1969, 1980, 2008, 2019
Apr 1899–Sep 1900 18-Month	52.4°F (11.3°C)	52.6°F (11.4°C)	-0.2°F (-0.1°C)	50th Coolest	Coolest since: 1899	1917
	52.4°F (11.3°C)	52.6°F (11.4°C)	-0.2°F (-0.1°C)	78th Warmest	Warmest to Date	2015
	Ties: 1914, 1921, 1999
Oct 1898–Sep 1900 24-Month	47.9°F (8.8°C)	48.5°F (9.2°C)	-0.6°F (-0.4°C)	25th Coolest	Coolest since: 1899	1913
	47.9°F (8.8°C)	48.5°F (9.2°C)	-0.6°F (-0.4°C)	102nd Warmest	Warmest to Date	2016
	Ties: 1948, 1953, 1956, 1983, 1985
Oct 1897–Sep 1900 36-Month	47.8°F (8.8°C)	48.5°F (9.2°C)	-0.7°F (-0.4°C)	17th Coolest	Coolest since: 1899	1917
	47.8°F (8.8°C)	48.5°F (9.2°C)	-0.7°F (-0.4°C)	109th Warmest	Warmest to Date	2017
	Ties: 1924, 1925, 1985
Oct 1896–Sep 1900 48-Month	47.8°F (8.8°C)	48.4°F (9.1°C)	-0.6°F (-0.3°C)	16th Coolest	Coolest since: 1899	1915
	47.8°F (8.8°C)	48.4°F (9.1°C)	-0.6°F (-0.3°C)	109th Warmest	Warmest to Date	2018
	Ties: 1908, 1916, 1925, 1951, 1965, 1976
Oct 1895–Sep 1900 60-Month	47.8°F (8.8°C)	48.4°F (9.1°C)	-0.6°F (-0.3°C)	12th Coolest	Coolest since: 1900	1917
	47.8°F (8.8°C)	48.4°F (9.1°C)	-0.6°F (-0.3°C)	112th Warmest	Warmest to Date	2018
	Ties: 1906, 1909, 1910, 1912, 1918, 1924, 1948

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on January 28, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings