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 1917

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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 1917 1-Month	54.7°F (12.6°C)	53.6°F (12.0°C)	1.1°F (0.6°C)	77th Coolest	Coolest since: 1916	1965
	54.7°F (12.6°C)	53.6°F (12.0°C)	1.1°F (0.6°C)	52nd Warmest	Warmest since: 1908	1998
	Ties: 1943
Aug–Sep 1917 2-Month	57.5°F (14.2°C)	58.5°F (14.7°C)	-1.0°F (-0.5°C)	29th Coolest	Coolest since: 1916	1912
	57.5°F (14.2°C)	58.5°F (14.7°C)	-1.0°F (-0.5°C)	100th Warmest	Warmest since: 1914	2022
	Ties: 1920, 1934, 2004
Jul–Sep 1917 3-Month	60.6°F (15.9°C)	60.7°F (15.9°C)	-0.1°F (0.0°C)	48th Coolest	Coolest since: 1916	1912
	60.6°F (15.9°C)	60.7°F (15.9°C)	-0.1°F (0.0°C)	81st Warmest	Warmest since: 1914	2022
	Ties: 1897, 1905, 1914, 1977, 1999
Jun–Sep 1917 4-Month	59.1°F (15.1°C)	60.0°F (15.6°C)	-0.9°F (-0.5°C)	27th Coolest	Coolest since: 1916	1912, 1915
	59.1°F (15.1°C)	60.0°F (15.6°C)	-0.9°F (-0.5°C)	102nd Warmest	Warmest since: 1914	2021
	Ties: 1972, 1985, 2004
May–Sep 1917 5-Month	55.9°F (13.3°C)	57.7°F (14.3°C)	-1.8°F (-1.0°C)	14th Coolest	Coolest since: 1916	1915
	55.9°F (13.3°C)	57.7°F (14.3°C)	-1.8°F (-1.0°C)	115th Warmest	Warmest since: 1914	2012
	Ties: 1945, 1975
Apr–Sep 1917 6-Month	52.2°F (11.2°C)	54.5°F (12.5°C)	-2.3°F (-1.3°C)	7th Coolest	Coolest since: 1912	1912
	52.2°F (11.2°C)	54.5°F (12.5°C)	-2.3°F (-1.3°C)	122nd Warmest	Warmest since: 1916	2012
	Ties: 1965
Mar–Sep 1917 7-Month	47.5°F (8.6°C)	50.9°F (10.5°C)	-3.4°F (-1.9°C)	3rd Coolest	Coolest since: 1912	1912
Mar–Sep 1917 7-Month	47.5°F (8.6°C)	50.9°F (10.5°C)	-3.4°F (-1.9°C)	126th Warmest	Warmest since: 1916	2012
Feb–Sep 1917 8-Month	43.9°F (6.6°C)	47.3°F (8.5°C)	-3.4°F (-1.9°C)	2nd Coolest	Coolest since: 1912	1912
Feb–Sep 1917 8-Month	43.9°F (6.6°C)	47.3°F (8.5°C)	-3.4°F (-1.9°C)	127th Warmest	Warmest since: 1916	2012
Jan–Sep 1917 9-Month	40.4°F (4.7°C)	44.1°F (6.7°C)	-3.7°F (-2.0°C)	1st Coolest	Coolest to Date	1917
Jan–Sep 1917 9-Month	40.4°F (4.7°C)	44.1°F (6.7°C)	-3.7°F (-2.0°C)	128th Warmest	Warmest since: 1916	2012
Dec 1916–Sep 1917 10-Month	37.6°F (3.1°C)	41.8°F (5.4°C)	-4.2°F (-2.3°C)	1st Coolest	Coolest to Date	1917
Dec 1916–Sep 1917 10-Month	37.6°F (3.1°C)	41.8°F (5.4°C)	-4.2°F (-2.3°C)	127th Warmest	Warmest since: 1916	1934, 2012
Nov 1916–Sep 1917 11-Month	36.4°F (2.4°C)	40.6°F (4.8°C)	-4.2°F (-2.4°C)	1st Coolest	Coolest to Date	1917
Nov 1916–Sep 1917 11-Month	36.4°F (2.4°C)	40.6°F (4.8°C)	-4.2°F (-2.4°C)	127th Warmest	Warmest since: 1916	1934
Oct 1916–Sep 1917 12-Month	36.6°F (2.6°C)	40.8°F (4.9°C)	-4.2°F (-2.3°C)	1st Coolest	Coolest to Date	1917
Oct 1916–Sep 1917 12-Month	36.6°F (2.6°C)	40.8°F (4.9°C)	-4.2°F (-2.3°C)	127th Warmest	Warmest since: 1916	1934
Apr 1916–Sep 1917 18-Month	42.0°F (5.6°C)	45.3°F (7.4°C)	-3.3°F (-1.8°C)	1st Coolest	Coolest to Date	1917
Apr 1916–Sep 1917 18-Month	42.0°F (5.6°C)	45.3°F (7.4°C)	-3.3°F (-1.8°C)	127th Warmest	Warmest since: 1916	1934
Oct 1915–Sep 1917 24-Month	38.2°F (3.4°C)	40.8°F (4.9°C)	-2.6°F (-1.5°C)	1st Coolest	Coolest since: 1913	1913, 1917
	38.2°F (3.4°C)	40.8°F (4.9°C)	-2.6°F (-1.5°C)	126th Warmest	Warmest since: 1916	2016
	Ties: 1913
Oct 1914–Sep 1917 36-Month	38.7°F (3.7°C)	40.7°F (4.8°C)	-2.0°F (-1.1°C)	1st Coolest	Coolest to Date	1917
Oct 1914–Sep 1917 36-Month	38.7°F (3.7°C)	40.7°F (4.8°C)	-2.0°F (-1.1°C)	125th Warmest	Warmest since: 1916	2017
Oct 1913–Sep 1917 48-Month	39.2°F (4.0°C)	40.7°F (4.8°C)	-1.5°F (-0.8°C)	2nd Coolest	Coolest since: 1915	1899
	39.2°F (4.0°C)	40.7°F (4.8°C)	-1.5°F (-0.8°C)	123rd Warmest	Warmest since: 1916	2018
	Ties: 1915, 1918
Oct 1912–Sep 1917 60-Month	39.2°F (4.0°C)	40.7°F (4.8°C)	-1.5°F (-0.8°C)	1st Coolest	Coolest to Date	1917
Oct 1912–Sep 1917 60-Month	39.2°F (4.0°C)	40.7°F (4.8°C)	-1.5°F (-0.8°C)	123rd Warmest	Warmest since: 1916	2016

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on June 7, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings