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 1918

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1918 1-Month	61.8°F (16.6°C)	60.8°F (16.0°C)	1.0°F (0.6°C)	77th Coolest	Coolest since: 1917	1912
	61.8°F (16.6°C)	60.8°F (16.0°C)	1.0°F (0.6°C)	52nd Warmest	Warmest since: 1899	2022
	Ties: 1958
Aug–Sep 1918 2-Month	64.3°F (17.9°C)	65.1°F (18.4°C)	-0.8°F (-0.5°C)	30th Coolest	Coolest since: 1916	1900
Aug–Sep 1918 2-Month	64.3°F (17.9°C)	65.1°F (18.4°C)	-0.8°F (-0.5°C)	99th Warmest	Warmest since: 1917	2020
Jul–Sep 1918 3-Month	66.3°F (19.1°C)	67.2°F (19.6°C)	-0.9°F (-0.5°C)	19th Coolest	Coolest since: 1916	1912
	66.3°F (19.1°C)	67.2°F (19.6°C)	-0.9°F (-0.5°C)	110th Warmest	Warmest since: 1917	2022
	Ties: 1895, 1899
Jun–Sep 1918 4-Month	67.3°F (19.6°C)	66.3°F (19.1°C)	1.0°F (0.5°C)	91st Coolest	Coolest since: 1917	1907
	67.3°F (19.6°C)	66.3°F (19.1°C)	1.0°F (0.5°C)	38th Warmest	Warmest since: 1898	2021
	Ties: 1898, 1936
May–Sep 1918 5-Month	64.2°F (17.9°C)	63.9°F (17.7°C)	0.3°F (0.2°C)	74th Coolest	Coolest since: 1917	1907, 1965
	64.2°F (17.9°C)	63.9°F (17.7°C)	0.3°F (0.2°C)	55th Warmest	Warmest since: 1910	2021
	Ties: 1898, 1933, 1972, 1973
Apr–Sep 1918 6-Month	60.9°F (16.1°C)	60.8°F (16.0°C)	0.1°F (0.1°C)	58th Coolest	Coolest since: 1917	1912
	60.9°F (16.1°C)	60.8°F (16.0°C)	0.1°F (0.1°C)	71st Warmest	Warmest since: 1914	2021
	Ties: 1914, 1922, 1984
Mar–Sep 1918 7-Month	58.0°F (14.4°C)	57.6°F (14.2°C)	0.4°F (0.2°C)	73rd Coolest	Coolest since: 1917	1912
	58.0°F (14.4°C)	57.6°F (14.2°C)	0.4°F (0.2°C)	56th Warmest	Warmest since: 1914	1934, 2007, 2021
	Ties: 1949, 1954, 1956
Feb–Sep 1918 8-Month	54.6°F (12.6°C)	54.5°F (12.5°C)	0.1°F (0.1°C)	59th Coolest	Coolest since: 1917	1903
	54.6°F (12.6°C)	54.5°F (12.5°C)	0.1°F (0.1°C)	70th Warmest	Warmest since: 1914	1934, 2015
	Ties: 1904, 1937, 1951, 1991
Jan–Sep 1918 9-Month	51.9°F (11.1°C)	51.6°F (10.9°C)	0.3°F (0.2°C)	69th Coolest	Coolest since: 1917	1917
	51.9°F (11.1°C)	51.6°F (10.9°C)	0.3°F (0.2°C)	60th Warmest	Warmest since: 1914	2015
	Ties: 1938, 1946, 1956
Dec 1917–Sep 1918 10-Month	50.5°F (10.3°C)	49.4°F (9.7°C)	1.1°F (0.6°C)	95th Coolest	Coolest since: 1917	1917
	50.5°F (10.3°C)	49.4°F (9.7°C)	1.1°F (0.6°C)	33rd Warmest	Warmest to Date	2015
	Ties: 1961, 2005
Nov 1917–Sep 1918 11-Month	49.6°F (9.8°C)	48.3°F (9.1°C)	1.3°F (0.7°C)	100th Coolest	Coolest since: 1917	1917
	49.6°F (9.8°C)	48.3°F (9.1°C)	1.3°F (0.7°C)	28th Warmest	Warmest to Date	2015
	Ties: 1943, 1954, 1986, 2004
Oct 1917–Sep 1918 12-Month	49.8°F (9.9°C)	48.5°F (9.2°C)	1.3°F (0.7°C)	101st Coolest	Coolest since: 1917	1917
	49.8°F (9.9°C)	48.5°F (9.2°C)	1.3°F (0.7°C)	27th Warmest	Warmest to Date	2015
	Ties: 1926, 1951
Apr 1917–Sep 1918 18-Month	53.1°F (11.7°C)	52.6°F (11.4°C)	0.5°F (0.3°C)	81st Coolest	Coolest since: 1917	1917
	53.1°F (11.7°C)	52.6°F (11.4°C)	0.5°F (0.3°C)	47th Warmest	Warmest to Date	2015
	Ties: 1953, 1963, 1967, 1982
Oct 1916–Sep 1918 24-Month	47.3°F (8.5°C)	48.4°F (9.1°C)	-1.1°F (-0.6°C)	9th Coolest	Coolest since: 1917	1913
	47.3°F (8.5°C)	48.4°F (9.1°C)	-1.1°F (-0.6°C)	118th Warmest	Warmest since: 1916	2016
	Ties: 1907, 1965
Oct 1915–Sep 1918 36-Month	47.6°F (8.7°C)	48.4°F (9.1°C)	-0.8°F (-0.4°C)	8th Coolest	Coolest since: 1917	1917
	47.6°F (8.7°C)	48.4°F (9.1°C)	-0.8°F (-0.4°C)	118th Warmest	Warmest since: 1916	2017
	Ties: 1908, 1912
Oct 1914–Sep 1918 48-Month	47.7°F (8.7°C)	48.5°F (9.2°C)	-0.8°F (-0.5°C)	11th Coolest	Coolest since: 1917	1915
	47.7°F (8.7°C)	48.5°F (9.2°C)	-0.8°F (-0.5°C)	114th Warmest	Warmest since: 1916	2018
	Ties: 1909, 1923, 1933, 1952
Oct 1913–Sep 1918 60-Month	47.8°F (8.8°C)	48.4°F (9.1°C)	-0.6°F (-0.3°C)	12th Coolest	Coolest since: 1917	1917
	47.8°F (8.8°C)	48.4°F (9.1°C)	-0.6°F (-0.3°C)	112th Warmest	Warmest since: 1912	2018
	Ties: 1900, 1906, 1909, 1910, 1912, 1924, 1948

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on January 31, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings