Statewide Rankings

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Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Wyoming

Average Temperature Rankings, September 1921

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Record Coolest
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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1921 1-Month	52.0°F (11.1°C)	53.6°F (12.0°C)	-1.6°F (-0.9°C)	28th Coolest	Coolest since: 1915	1965
	52.0°F (11.1°C)	53.6°F (12.0°C)	-1.6°F (-0.9°C)	101st Warmest	Warmest since: 1920	1998
	Ties: 1957, 1968
Aug–Sep 1921 2-Month	57.7°F (14.3°C)	58.5°F (14.7°C)	-0.8°F (-0.4°C)	35th Coolest	Coolest since: 1920	1912
	57.7°F (14.3°C)	58.5°F (14.7°C)	-0.8°F (-0.4°C)	94th Warmest	Warmest since: 1919	2022
	Ties: 1978
Jul–Sep 1921 3-Month	60.4°F (15.8°C)	60.7°F (15.9°C)	-0.3°F (-0.1°C)	43rd Coolest	Coolest since: 1920	1912
	60.4°F (15.8°C)	60.7°F (15.9°C)	-0.3°F (-0.1°C)	86th Warmest	Warmest since: 1919	2022
	Ties: 1956, 1959
Jun–Sep 1921 4-Month	60.5°F (15.8°C)	60.0°F (15.6°C)	0.5°F (0.2°C)	74th Coolest	Coolest since: 1920	1912, 1915
	60.5°F (15.8°C)	60.0°F (15.6°C)	0.5°F (0.2°C)	55th Warmest	Warmest since: 1919	2021
	Ties: 1934, 1939, 1955
May–Sep 1921 5-Month	58.1°F (14.5°C)	57.7°F (14.3°C)	0.4°F (0.2°C)	71st Coolest	Coolest since: 1920	1915
	58.1°F (14.5°C)	57.7°F (14.3°C)	0.4°F (0.2°C)	58th Warmest	Warmest since: 1919	2012
	Ties: 1976, 2011
Apr–Sep 1921 6-Month	54.6°F (12.6°C)	54.5°F (12.5°C)	0.1°F (0.1°C)	55th Coolest	Coolest since: 1920	1912
	54.6°F (12.6°C)	54.5°F (12.5°C)	0.1°F (0.1°C)	74th Warmest	Warmest since: 1919	2012
	Ties: 1941, 1962, 2004, 2011
Mar–Sep 1921 7-Month	51.5°F (10.8°C)	50.9°F (10.5°C)	0.6°F (0.3°C)	79th Coolest	Coolest since: 1920	1912
	51.5°F (10.8°C)	50.9°F (10.5°C)	0.6°F (0.3°C)	50th Warmest	Warmest since: 1919	2012
	Ties: 1956, 1969, 1985, 2010
Feb–Sep 1921 8-Month	48.3°F (9.1°C)	47.3°F (8.5°C)	1.0°F (0.6°C)	90th Coolest	Coolest since: 1920	1912
	48.3°F (9.1°C)	47.3°F (8.5°C)	1.0°F (0.6°C)	39th Warmest	Warmest since: 1919	2012
	Ties: 1938
Jan–Sep 1921 9-Month	45.3°F (7.4°C)	44.1°F (6.7°C)	1.2°F (0.7°C)	91st Coolest	Coolest since: 1920	1917
	45.3°F (7.4°C)	44.1°F (6.7°C)	1.2°F (0.7°C)	38th Warmest	Warmest since: 1919	2012
	Ties: 1910, 1938, 1963, 1977, 2009
Dec 1920–Sep 1921 10-Month	42.8°F (6.0°C)	41.8°F (5.4°C)	1.0°F (0.6°C)	89th Coolest	Coolest since: 1920	1917
	42.8°F (6.0°C)	41.8°F (5.4°C)	1.0°F (0.6°C)	39th Warmest	Warmest since: 1919	1934, 2012
	Ties: 1941, 1946, 1976, 1995
Nov 1920–Sep 1921 11-Month	41.3°F (5.2°C)	40.6°F (4.8°C)	0.7°F (0.4°C)	81st Coolest	Coolest since: 1920	1917
	41.3°F (5.2°C)	40.6°F (4.8°C)	0.7°F (0.4°C)	47th Warmest	Warmest since: 1919	1934
	Ties: 1925, 1926, 1943, 1967
Oct 1920–Sep 1921 12-Month	41.2°F (5.1°C)	40.8°F (4.9°C)	0.4°F (0.2°C)	72nd Coolest	Coolest since: 1920	1917
	41.2°F (5.1°C)	40.8°F (4.9°C)	0.4°F (0.2°C)	56th Warmest	Warmest since: 1919	1934
	Ties: 1939, 1959, 1980, 1997
Apr 1920–Sep 1921 18-Month	44.9°F (7.2°C)	45.3°F (7.4°C)	-0.4°F (-0.2°C)	39th Coolest	Coolest since: 1920	1917
	44.9°F (7.2°C)	45.3°F (7.4°C)	-0.4°F (-0.2°C)	89th Warmest	Warmest since: 1919	1934
	Ties: 1933, 1942, 1972
Oct 1919–Sep 1921 24-Month	39.6°F (4.2°C)	40.8°F (4.9°C)	-1.2°F (-0.7°C)	13th Coolest	Coolest since: 1918	1913, 1917
	39.6°F (4.2°C)	40.8°F (4.9°C)	-1.2°F (-0.7°C)	114th Warmest	Warmest since: 1920	2016
	Ties: 1900, 1903
Oct 1918–Sep 1921 36-Month	40.4°F (4.7°C)	40.7°F (4.8°C)	-0.3°F (-0.1°C)	40th Coolest	Coolest since: 1920	1917
	40.4°F (4.7°C)	40.7°F (4.8°C)	-0.3°F (-0.1°C)	86th Warmest	Warmest since: 1911	2017
	Ties: 1910, 1933, 1945, 1970, 1972, 1979
Oct 1917–Sep 1921 48-Month	40.5°F (4.7°C)	40.7°F (4.8°C)	-0.2°F (-0.1°C)	44th Coolest	Coolest since: 1920	1899
	40.5°F (4.7°C)	40.7°F (4.8°C)	-0.2°F (-0.1°C)	81st Warmest	Warmest since: 1911	2018
	Ties: 1903, 1972, 1986
Oct 1916–Sep 1921 60-Month	39.7°F (4.3°C)	40.7°F (4.8°C)	-1.0°F (-0.5°C)	7th Coolest	Coolest since: 1920	1917
	39.7°F (4.3°C)	40.7°F (4.8°C)	-1.0°F (-0.5°C)	117th Warmest	Warmest since: 1919	2016
	Ties: 1900, 1913

Citing This Page

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