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 1977

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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
May 1977 1-Month	49.5°F (9.7°C)	48.4°F (9.1°C)	1.1°F (0.6°C)	82nd Coolest	Coolest since: 1975	1917
	49.5°F (9.7°C)	48.4°F (9.1°C)	1.1°F (0.6°C)	47th Warmest	Warmest since: 1976	1934
	Ties: 1955, 1961, 1989, 1997
Apr–May 1977 2-Month	46.0°F (7.8°C)	43.7°F (6.5°C)	2.3°F (1.3°C)	105th Coolest	Coolest since: 1976	1917
Apr–May 1977 2-Month	46.0°F (7.8°C)	43.7°F (6.5°C)	2.3°F (1.3°C)	24th Warmest	Warmest since: 1969	1934
Mar–May 1977 3-Month	39.9°F (4.4°C)	38.8°F (3.8°C)	1.1°F (0.6°C)	90th Coolest	Coolest since: 1976	1917
	39.9°F (4.4°C)	38.8°F (3.8°C)	1.1°F (0.6°C)	39th Warmest	Warmest since: 1974	1934
	Ties: 1911, 1960, 1974, 1978
Feb–May 1977 4-Month	36.8°F (2.7°C)	34.7°F (1.5°C)	2.1°F (1.2°C)	105th Coolest	Coolest since: 1976	1917
	36.8°F (2.7°C)	34.7°F (1.5°C)	2.1°F (1.2°C)	24th Warmest	Warmest since: 1972	1934, 1992
	Ties: 2005
Jan–May 1977 5-Month	32.6°F (0.3°C)	31.4°F (-0.3°C)	1.2°F (0.6°C)	89th Coolest	Coolest since: 1976	1917
	32.6°F (0.3°C)	31.4°F (-0.3°C)	1.2°F (0.6°C)	40th Warmest	Warmest since: 1972	1934
	Ties: 1931, 1967, 1988, 1995
Dec 1976–May 1977 6-Month	31.1°F (-0.5°C)	29.6°F (-1.3°C)	1.5°F (0.8°C)	97th Coolest	Coolest since: 1975	1917
	31.1°F (-0.5°C)	29.6°F (-1.3°C)	1.5°F (0.8°C)	31st Warmest	Warmest since: 1976	1934
	Ties: 1921, 1925, 1990
Nov 1976–May 1977 7-Month	30.9°F (-0.6°C)	29.5°F (-1.4°C)	1.4°F (0.8°C)	98th Coolest	Coolest since: 1976	1917
	30.9°F (-0.6°C)	29.5°F (-1.4°C)	1.4°F (0.8°C)	30th Warmest	Warmest since: 1963	1934
	Ties: 1925, 1958, 2013
Oct 1976–May 1977 8-Month	32.1°F (0.1°C)	31.2°F (-0.4°C)	0.9°F (0.5°C)	89th Coolest	Coolest since: 1975	1917
	32.1°F (0.1°C)	31.2°F (-0.4°C)	0.9°F (0.5°C)	39th Warmest	Warmest since: 1976	1934
	Ties: 1967, 1974
Sep 1976–May 1977 9-Month	34.6°F (1.4°C)	33.6°F (0.9°C)	1.0°F (0.5°C)	90th Coolest	Coolest since: 1976	1917
	34.6°F (1.4°C)	33.6°F (0.9°C)	1.0°F (0.5°C)	38th Warmest	Warmest since: 1967	1934
	Ties: 1925, 1935, 1953, 2014
Aug 1976–May 1977 10-Month	37.4°F (3.0°C)	36.6°F (2.6°C)	0.8°F (0.4°C)	88th Coolest	Coolest since: 1976	1917
	37.4°F (3.0°C)	36.6°F (2.6°C)	0.8°F (0.4°C)	40th Warmest	Warmest since: 1967	1934
	Ties: 1900, 1939, 1988, 2020
Jul 1976–May 1977 11-Month	40.1°F (4.5°C)	39.2°F (4.0°C)	0.9°F (0.5°C)	93rd Coolest	Coolest since: 1976	1917
	40.1°F (4.5°C)	39.2°F (4.0°C)	0.9°F (0.5°C)	35th Warmest	Warmest since: 1967	1934
	Ties: 1958, 1989, 1991
Jun 1976–May 1977 12-Month	41.4°F (5.2°C)	40.8°F (4.9°C)	0.6°F (0.3°C)	86th Coolest	Coolest since: 1976	1917
	41.4°F (5.2°C)	40.8°F (4.9°C)	0.6°F (0.3°C)	42nd Warmest	Warmest since: 1967	1934
	Ties: 1958, 1978, 1982, 2020
Dec 1975–May 1977 18-Month	38.0°F (3.3°C)	37.0°F (2.8°C)	1.0°F (0.5°C)	92nd Coolest	Coolest since: 1976	1917
	38.0°F (3.3°C)	37.0°F (2.8°C)	1.0°F (0.5°C)	35th Warmest	Warmest since: 1961	2016
	Ties: 1901, 1955, 1959, 1978, 1998, 2019
Jun 1975–May 1977 24-Month	41.2°F (5.1°C)	40.7°F (4.8°C)	0.5°F (0.3°C)	79th Coolest	Coolest since: 1976	1917
	41.2°F (5.1°C)	40.7°F (4.8°C)	0.5°F (0.3°C)	48th Warmest	Warmest since: 1967	1935
	Ties: 1959, 1967, 2010, 2020
Jun 1974–May 1977 36-Month	40.7°F (4.8°C)	40.7°F (4.8°C)	0.0°F (0.0°C)	53rd Coolest	Coolest since: 1976	1918
	40.7°F (4.8°C)	40.7°F (4.8°C)	0.0°F (0.0°C)	73rd Warmest	Warmest since: 1976	2017
	Ties: 1945, 1947, 1948, 1976
Jun 1973–May 1977 48-Month	40.9°F (4.9°C)	40.7°F (4.8°C)	0.2°F (0.1°C)	60th Coolest	Coolest since: 1976	1899
	40.9°F (4.9°C)	40.7°F (4.8°C)	0.2°F (0.1°C)	65th Warmest	Warmest since: 1967	2018
	Ties: 1958, 1962, 1966, 1967, 1978, 1996
Jun 1972–May 1977 60-Month	40.4°F (4.7°C)	40.7°F (4.8°C)	-0.3°F (-0.1°C)	37th Coolest	Coolest since: 1976	1917
	40.4°F (4.7°C)	40.7°F (4.8°C)	-0.3°F (-0.1°C)	87th Warmest	Warmest since: 1972	2016, 2017, 2018
	Ties: 1905, 1927, 1928, 1949, 1950, 1972, 1979

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on June 5, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings