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, May 1921

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 1921 1-Month	48.8°F (9.3°C)	48.4°F (9.1°C)	0.4°F (0.2°C)	68th Coolest	Coolest since: 1920	1917
	48.8°F (9.3°C)	48.4°F (9.1°C)	0.4°F (0.2°C)	61st Warmest	Warmest since: 1919	1934
	Ties: 1911, 1980, 2021
Apr–May 1921 2-Month	42.8°F (6.0°C)	43.6°F (6.4°C)	-0.8°F (-0.4°C)	40th Coolest	Coolest since: 1920	1917
	42.8°F (6.0°C)	43.6°F (6.4°C)	-0.8°F (-0.4°C)	89th Warmest	Warmest since: 1919	1934
	Ties: 1923, 1971, 2019
Mar–May 1921 3-Month	39.6°F (4.2°C)	38.8°F (3.8°C)	0.8°F (0.4°C)	80th Coolest	Coolest since: 1920	1917
	39.6°F (4.2°C)	38.8°F (3.8°C)	0.8°F (0.4°C)	49th Warmest	Warmest since: 1919	1934
	Ties: 1966
Feb–May 1921 4-Month	36.0°F (2.2°C)	34.6°F (1.4°C)	1.4°F (0.8°C)	93rd Coolest	Coolest since: 1920	1917
	36.0°F (2.2°C)	34.6°F (1.4°C)	1.4°F (0.8°C)	36th Warmest	Warmest since: 1910	1934, 1992
	Ties: 1974, 2018
Jan–May 1921 5-Month	33.2°F (0.7°C)	31.4°F (-0.3°C)	1.8°F (1.0°C)	101st Coolest	Coolest since: 1920	1917
	33.2°F (0.7°C)	31.4°F (-0.3°C)	1.8°F (1.0°C)	28th Warmest	Warmest since: 1900	1934
	Ties: 1926
Dec 1920–May 1921 6-Month	31.1°F (-0.5°C)	29.6°F (-1.3°C)	1.5°F (0.8°C)	97th Coolest	Coolest since: 1920	1917
	31.1°F (-0.5°C)	29.6°F (-1.3°C)	1.5°F (0.8°C)	31st Warmest	Warmest to Date	1934
	Ties: 1925, 1977
Nov 1920–May 1921 7-Month	30.3°F (-0.9°C)	29.6°F (-1.3°C)	0.7°F (0.4°C)	80th Coolest	Coolest since: 1920	1917
	30.3°F (-0.9°C)	29.6°F (-1.3°C)	0.7°F (0.4°C)	48th Warmest	Warmest since: 1911	1934
	Ties: 1907, 1974, 1983
Oct 1920–May 1921 8-Month	31.6°F (-0.2°C)	31.1°F (-0.5°C)	0.5°F (0.3°C)	71st Coolest	Coolest since: 1920	1917
	31.6°F (-0.2°C)	31.1°F (-0.5°C)	0.5°F (0.3°C)	57th Warmest	Warmest since: 1919	1934
	Ties: 1905, 1939, 1978, 1991, 2020
Sep 1920–May 1921 9-Month	34.0°F (1.1°C)	33.6°F (0.9°C)	0.4°F (0.2°C)	66th Coolest	Coolest since: 1920	1917
	34.0°F (1.1°C)	33.6°F (0.9°C)	0.4°F (0.2°C)	62nd Warmest	Warmest since: 1919	1934
	Ties: 1901, 1905, 1966
Aug 1920–May 1921 10-Month	36.8°F (2.7°C)	36.6°F (2.6°C)	0.2°F (0.1°C)	59th Coolest	Coolest since: 1920	1917
	36.8°F (2.7°C)	36.6°F (2.6°C)	0.2°F (0.1°C)	69th Warmest	Warmest since: 1919	1934
	Ties: 1908, 1910, 1919, 1978, 2008
Jul 1920–May 1921 11-Month	39.3°F (4.1°C)	39.2°F (4.0°C)	0.1°F (0.1°C)	54th Coolest	Coolest since: 1920	1917
	39.3°F (4.1°C)	39.2°F (4.0°C)	0.1°F (0.1°C)	74th Warmest	Warmest since: 1919	1934
	Ties: 1907, 1915, 1919, 1947, 1956, 1986
Jun 1920–May 1921 12-Month	40.7°F (4.8°C)	40.7°F (4.8°C)	0.0°F (0.0°C)	52nd Coolest	Coolest since: 1920	1917
	40.7°F (4.8°C)	40.7°F (4.8°C)	0.0°F (0.0°C)	76th Warmest	Warmest since: 1919	1934
	Ties: 1944, 1956, 1970
Dec 1919–May 1921 18-Month	36.3°F (2.4°C)	37.1°F (2.8°C)	-0.8°F (-0.4°C)	30th Coolest	Coolest since: 1918	1917
	36.3°F (2.4°C)	37.1°F (2.8°C)	-0.8°F (-0.4°C)	97th Warmest	Warmest since: 1920	2016
	Ties: 1937
Jun 1919–May 1921 24-Month	40.0°F (4.4°C)	40.8°F (4.9°C)	-0.8°F (-0.5°C)	26th Coolest	Coolest since: 1918	1917
	40.0°F (4.4°C)	40.8°F (4.9°C)	-0.8°F (-0.5°C)	101st Warmest	Warmest since: 1920	1935
	Ties: 1912, 1985
Jun 1918–May 1921 36-Month	40.4°F (4.7°C)	40.7°F (4.8°C)	-0.3°F (-0.1°C)	41st Coolest	Coolest since: 1920	1918
	40.4°F (4.7°C)	40.7°F (4.8°C)	-0.3°F (-0.1°C)	85th Warmest	Warmest since: 1911	2017
	Ties: 1903, 1926, 1970, 1971
Jun 1917–May 1921 48-Month	40.4°F (4.7°C)	40.7°F (4.8°C)	-0.3°F (-0.1°C)	36th Coolest	Coolest since: 1920	1899
	40.4°F (4.7°C)	40.7°F (4.8°C)	-0.3°F (-0.1°C)	89th Warmest	Warmest since: 1911	2018
	Ties: 1902, 1904, 1926, 1927, 1949, 1971, 1986
Jun 1916–May 1921 60-Month	39.6°F (4.2°C)	40.7°F (4.8°C)	-1.1°F (-0.6°C)	6th Coolest	Coolest since: 1920	1917
	39.6°F (4.2°C)	40.7°F (4.8°C)	-1.1°F (-0.6°C)	118th Warmest	Warmest since: 1919	2016, 2017, 2018
	Ties: 1913, 1919, 1933

Citing This Page

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