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 1940

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1940 1-Month	58.0°F (14.4°C)	53.6°F (12.0°C)	4.4°F (2.4°C)	121st Coolest	Coolest since: 1939	1965
September 1940 1-Month	58.0°F (14.4°C)	53.6°F (12.0°C)	4.4°F (2.4°C)	8th Warmest	Warmest to Date	1998
Aug–Sep 1940 2-Month	61.7°F (16.5°C)	58.5°F (14.7°C)	3.2°F (1.8°C)	120th Coolest	Coolest since: 1939	1912
Aug–Sep 1940 2-Month	61.7°F (16.5°C)	58.5°F (14.7°C)	3.2°F (1.8°C)	9th Warmest	Warmest to Date	2022
Jul–Sep 1940 3-Month	63.8°F (17.7°C)	60.8°F (16.0°C)	3.0°F (1.7°C)	121st Coolest	Coolest since: 1939	1912
Jul–Sep 1940 3-Month	63.8°F (17.7°C)	60.8°F (16.0°C)	3.0°F (1.7°C)	8th Warmest	Warmest to Date	2022
Jun–Sep 1940 4-Month	63.2°F (17.3°C)	60.0°F (15.6°C)	3.2°F (1.7°C)	123rd Coolest	Coolest since: 1939	1912, 1915
	63.2°F (17.3°C)	60.0°F (15.6°C)	3.2°F (1.7°C)	6th Warmest	Warmest to Date	2021
	Ties: 1988
May–Sep 1940 5-Month	60.8°F (16.0°C)	57.6°F (14.2°C)	3.2°F (1.8°C)	123rd Coolest	Coolest since: 1939	1915
	60.8°F (16.0°C)	57.6°F (14.2°C)	3.2°F (1.8°C)	6th Warmest	Warmest since: 1936	2012
	Ties: 1988
Apr–Sep 1940 6-Month	57.3°F (14.1°C)	54.5°F (12.5°C)	2.8°F (1.6°C)	124th Coolest	Coolest since: 1939	1912
	57.3°F (14.1°C)	54.5°F (12.5°C)	2.8°F (1.6°C)	5th Warmest	Warmest to Date	2012
	Ties: 1994, 2006, 2021
Mar–Sep 1940 7-Month	53.9°F (12.2°C)	50.9°F (10.5°C)	3.0°F (1.7°C)	124th Coolest	Coolest since: 1939	1912
Mar–Sep 1940 7-Month	53.9°F (12.2°C)	50.9°F (10.5°C)	3.0°F (1.7°C)	5th Warmest	Warmest to Date	2012
Feb–Sep 1940 8-Month	50.2°F (10.1°C)	47.3°F (8.5°C)	2.9°F (1.6°C)	121st Coolest	Coolest since: 1939	1912
Feb–Sep 1940 8-Month	50.2°F (10.1°C)	47.3°F (8.5°C)	2.9°F (1.6°C)	8th Warmest	Warmest since: 1934	2012
Jan–Sep 1940 9-Month	46.2°F (7.9°C)	44.1°F (6.7°C)	2.1°F (1.2°C)	113th Coolest	Coolest since: 1939	1917
	46.2°F (7.9°C)	44.1°F (6.7°C)	2.1°F (1.2°C)	16th Warmest	Warmest since: 1934	2012
	Ties: 1954, 1988, 2005
Dec 1939–Sep 1940 10-Month	44.5°F (6.9°C)	41.7°F (5.4°C)	2.8°F (1.5°C)	120th Coolest	Coolest since: 1939	1917
	44.5°F (6.9°C)	41.7°F (5.4°C)	2.8°F (1.5°C)	8th Warmest	Warmest since: 1934	1934, 2012
	Ties: 1992, 1994, 2003
Nov 1939–Sep 1940 11-Month	43.5°F (6.4°C)	40.6°F (4.8°C)	2.9°F (1.6°C)	121st Coolest	Coolest since: 1939	1917
Nov 1939–Sep 1940 11-Month	43.5°F (6.4°C)	40.6°F (4.8°C)	2.9°F (1.6°C)	7th Warmest	Warmest since: 1934	1934
Oct 1939–Sep 1940 12-Month	43.5°F (6.4°C)	40.7°F (4.8°C)	2.8°F (1.6°C)	121st Coolest	Coolest since: 1939	1917
Oct 1939–Sep 1940 12-Month	43.5°F (6.4°C)	40.7°F (4.8°C)	2.8°F (1.6°C)	7th Warmest	Warmest since: 1934	1934
Apr 1939–Sep 1940 18-Month	47.7°F (8.7°C)	45.3°F (7.4°C)	2.4°F (1.3°C)	119th Coolest	Coolest since: 1939	1917
	47.7°F (8.7°C)	45.3°F (7.4°C)	2.4°F (1.3°C)	9th Warmest	Warmest since: 1934	1934
	Ties: 2000, 2017
Oct 1938–Sep 1940 24-Month	42.4°F (5.8°C)	40.8°F (4.9°C)	1.6°F (0.9°C)	110th Coolest	Coolest since: 1939	1913, 1917
	42.4°F (5.8°C)	40.8°F (4.9°C)	1.6°F (0.9°C)	17th Warmest	Warmest since: 1935	2016
	Ties: 1934, 1982, 1988, 2004, 2021
Oct 1937–Sep 1940 36-Month	42.2°F (5.7°C)	40.7°F (4.8°C)	1.5°F (0.9°C)	108th Coolest	Coolest since: 1939	1917
	42.2°F (5.7°C)	40.7°F (4.8°C)	1.5°F (0.9°C)	18th Warmest	Warmest since: 1936	2017
	Ties: 1990, 1992, 2004, 2012
Oct 1936–Sep 1940 48-Month	41.6°F (5.3°C)	40.7°F (4.8°C)	0.9°F (0.5°C)	93rd Coolest	Coolest since: 1939	1899
	41.6°F (5.3°C)	40.7°F (4.8°C)	0.9°F (0.5°C)	32nd Warmest	Warmest since: 1937	2018
	Ties: 1942, 1943, 1956, 1997, 2010
Oct 1935–Sep 1940 60-Month	41.4°F (5.2°C)	40.7°F (4.8°C)	0.7°F (0.4°C)	87th Coolest	Coolest since: 1939	1917
	41.4°F (5.2°C)	40.7°F (4.8°C)	0.7°F (0.4°C)	37th Warmest	Warmest since: 1938	2016
	Ties: 1957, 1984, 1989, 1993, 1995, 1996

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on February 8, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings