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 1911

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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 1911 1-Month	54.2°F (12.3°C)	53.6°F (12.0°C)	0.6°F (0.3°C)	68th Coolest	Coolest since: 1909	1965
	54.2°F (12.3°C)	53.6°F (12.0°C)	0.6°F (0.3°C)	61st Warmest	Warmest since: 1910	1998
	Ties: 2004, 2017
Aug–Sep 1911 2-Month	57.4°F (14.1°C)	58.5°F (14.7°C)	-1.1°F (-0.6°C)	26th Coolest	Coolest since: 1907	1912
	57.4°F (14.1°C)	58.5°F (14.7°C)	-1.1°F (-0.6°C)	103rd Warmest	Warmest since: 1910	2022
	Ties: 1895, 1972
Jul–Sep 1911 3-Month	59.2°F (15.1°C)	60.7°F (15.9°C)	-1.5°F (-0.8°C)	19th Coolest	Coolest since: 1907	1912
	59.2°F (15.1°C)	60.7°F (15.9°C)	-1.5°F (-0.8°C)	110th Warmest	Warmest since: 1910	2022
	Ties: 1924
Jun–Sep 1911 4-Month	59.7°F (15.4°C)	60.0°F (15.6°C)	-0.3°F (-0.2°C)	45th Coolest	Coolest since: 1908	1912, 1915
	59.7°F (15.4°C)	60.0°F (15.6°C)	-0.3°F (-0.2°C)	84th Warmest	Warmest since: 1910	2021
	Ties: 1901, 1957, 1984, 1999
May–Sep 1911 5-Month	57.5°F (14.2°C)	57.7°F (14.3°C)	-0.2°F (-0.1°C)	49th Coolest	Coolest since: 1908	1915
	57.5°F (14.2°C)	57.7°F (14.3°C)	-0.2°F (-0.1°C)	80th Warmest	Warmest since: 1910	2012
	Ties: 2008
Apr–Sep 1911 6-Month	54.1°F (12.3°C)	54.5°F (12.5°C)	-0.4°F (-0.2°C)	43rd Coolest	Coolest since: 1909	1912
	54.1°F (12.3°C)	54.5°F (12.5°C)	-0.4°F (-0.2°C)	86th Warmest	Warmest since: 1910	2012
	Ties: 1935, 1978
Mar–Sep 1911 7-Month	51.2°F (10.7°C)	50.9°F (10.5°C)	0.3°F (0.2°C)	63rd Coolest	Coolest since: 1909	1912
	51.2°F (10.7°C)	50.9°F (10.5°C)	0.3°F (0.2°C)	66th Warmest	Warmest since: 1910	2012
	Ties: 1914, 1952, 1974, 1996
Feb–Sep 1911 8-Month	47.0°F (8.3°C)	47.3°F (8.5°C)	-0.3°F (-0.2°C)	44th Coolest	Coolest since: 1909	1912
	47.0°F (8.3°C)	47.3°F (8.5°C)	-0.3°F (-0.2°C)	85th Warmest	Warmest since: 1910	2012
	Ties: 1901, 1959, 1962, 1970
Jan–Sep 1911 9-Month	44.2°F (6.8°C)	44.1°F (6.7°C)	0.1°F (0.1°C)	59th Coolest	Coolest since: 1909	1917
	44.2°F (6.8°C)	44.1°F (6.7°C)	0.1°F (0.1°C)	70th Warmest	Warmest since: 1910	2012
	Ties: 1952, 2011
Dec 1910–Sep 1911 10-Month	42.1°F (5.6°C)	41.8°F (5.4°C)	0.3°F (0.2°C)	66th Coolest	Coolest since: 1910	1917
	42.1°F (5.6°C)	41.8°F (5.4°C)	0.3°F (0.2°C)	62nd Warmest	Warmest since: 1901	1934, 2012
	Ties: 1901, 1936, 1956, 1969, 1989
Nov 1910–Sep 1911 11-Month	41.2°F (5.1°C)	40.6°F (4.8°C)	0.6°F (0.3°C)	76th Coolest	Coolest since: 1910	1917
	41.2°F (5.1°C)	40.6°F (4.8°C)	0.6°F (0.3°C)	52nd Warmest	Warmest since: 1900	1934
	Ties: 1995
Oct 1910–Sep 1911 12-Month	41.5°F (5.3°C)	40.8°F (4.9°C)	0.7°F (0.4°C)	86th Coolest	Coolest since: 1910	1917
	41.5°F (5.3°C)	40.8°F (4.9°C)	0.7°F (0.4°C)	42nd Warmest	Warmest since: 1900	1934
	Ties: 1941, 1976, 1989, 1991, 1996, 2011
Apr 1910–Sep 1911 18-Month	46.4°F (8.0°C)	45.3°F (7.4°C)	1.1°F (0.6°C)	95th Coolest	Coolest since: 1910	1917
	46.4°F (8.0°C)	45.3°F (7.4°C)	1.1°F (0.6°C)	33rd Warmest	Warmest to Date	1934
	Ties: 1987
Oct 1909–Sep 1911 24-Month	41.2°F (5.1°C)	40.8°F (4.9°C)	0.4°F (0.2°C)	75th Coolest	Coolest since: 1910	1913, 1917
	41.2°F (5.1°C)	40.8°F (4.9°C)	0.4°F (0.2°C)	52nd Warmest	Warmest since: 1901	2016
	Ties: 2020
Oct 1908–Sep 1911 36-Month	40.7°F (4.8°C)	40.7°F (4.8°C)	0.0°F (0.0°C)	54th Coolest	Coolest since: 1910	1917
	40.7°F (4.8°C)	40.7°F (4.8°C)	0.0°F (0.0°C)	72nd Warmest	Warmest since: 1902	2017
	Ties: 1953, 1962, 1969
Oct 1907–Sep 1911 48-Month	40.7°F (4.8°C)	40.7°F (4.8°C)	0.0°F (0.0°C)	54th Coolest	Coolest since: 1910	1899
	40.7°F (4.8°C)	40.7°F (4.8°C)	0.0°F (0.0°C)	71st Warmest	Warmest to Date	2018
	Ties: 1967, 1979, 1987
Oct 1906–Sep 1911 60-Month	40.6°F (4.8°C)	40.7°F (4.8°C)	-0.1°F (0.0°C)	47th Coolest	Coolest since: 1910	1917
	40.6°F (4.8°C)	40.7°F (4.8°C)	-0.1°F (0.0°C)	77th Warmest	Warmest to Date	2016
	Ties: 1945, 1946, 1948, 1968, 1971

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on April 2, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings