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.

Idaho

Minimum Temperature Rankings, May 1939

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 1939 1-Month	38.2°F (3.4°C)	36.5°F (2.5°C)	1.7°F (0.9°C)	107th Coolest	Coolest since: 1938	1916
	38.2°F (3.4°C)	36.5°F (2.5°C)	1.7°F (0.9°C)	22nd Warmest	Warmest since: 1936	1897
	Ties: 1969, 2005, 2016
Apr–May 1939 2-Month	34.3°F (1.3°C)	32.9°F (0.5°C)	1.4°F (0.8°C)	100th Coolest	Coolest since: 1938	1982
	34.3°F (1.3°C)	32.9°F (0.5°C)	1.4°F (0.8°C)	29th Warmest	Warmest since: 1936	1934
	Ties: 1947, 1981
Mar–May 1939 3-Month	30.3°F (-0.9°C)	29.4°F (-1.4°C)	0.9°F (0.5°C)	84th Coolest	Coolest since: 1938	1917
	30.3°F (-0.9°C)	29.4°F (-1.4°C)	0.9°F (0.5°C)	45th Warmest	Warmest since: 1934	1934
	Ties: 1988
Feb–May 1939 4-Month	25.5°F (-3.6°C)	26.4°F (-3.1°C)	-0.9°F (-0.5°C)	39th Coolest	Coolest since: 1937	1933
	25.5°F (-3.6°C)	26.4°F (-3.1°C)	-0.9°F (-0.5°C)	90th Warmest	Warmest since: 1938	1934
	Ties: 1951, 1999
Jan–May 1939 5-Month	23.9°F (-4.5°C)	23.8°F (-4.6°C)	0.1°F (0.1°C)	52nd Coolest	Coolest since: 1937	1922
	23.9°F (-4.5°C)	23.8°F (-4.6°C)	0.1°F (0.1°C)	77th Warmest	Warmest since: 1938	1934
	Ties: 1918, 1946, 1993, 2013
Dec 1938–May 1939 6-Month	23.1°F (-4.9°C)	22.6°F (-5.2°C)	0.5°F (0.3°C)	72nd Coolest	Coolest since: 1937	1929
	23.1°F (-4.9°C)	22.6°F (-5.2°C)	0.5°F (0.3°C)	56th Warmest	Warmest since: 1938	1934
	Ties: 1930, 1965, 2001
Nov 1938–May 1939 7-Month	22.4°F (-5.3°C)	22.6°F (-5.2°C)	-0.2°F (-0.1°C)	47th Coolest	Coolest since: 1937	1917
	22.4°F (-5.3°C)	22.6°F (-5.2°C)	-0.2°F (-0.1°C)	81st Warmest	Warmest since: 1938	1934
	Ties: 1896, 1919, 1948
Oct 1938–May 1939 8-Month	24.0°F (-4.4°C)	23.7°F (-4.6°C)	0.3°F (0.2°C)	56th Coolest	Coolest since: 1937	1917
	24.0°F (-4.4°C)	23.7°F (-4.6°C)	0.3°F (0.2°C)	72nd Warmest	Warmest since: 1938	1934
	Ties: 1897, 1909, 1965, 1971
Sep 1938–May 1939 9-Month	26.3°F (-3.2°C)	25.6°F (-3.6°C)	0.7°F (0.4°C)	79th Coolest	Coolest since: 1937	1917
	26.3°F (-3.2°C)	25.6°F (-3.6°C)	0.7°F (0.4°C)	49th Warmest	Warmest since: 1938	1934
	Ties: 1908, 1925, 1970, 1997, 2006, 2019
Aug 1938–May 1939 10-Month	28.3°F (-2.1°C)	27.8°F (-2.3°C)	0.5°F (0.2°C)	74th Coolest	Coolest since: 1937	1917
	28.3°F (-2.1°C)	27.8°F (-2.3°C)	0.5°F (0.2°C)	54th Warmest	Warmest since: 1938	1934
	Ties: 1953, 1968
Jul 1938–May 1939 11-Month	30.3°F (-0.9°C)	29.7°F (-1.3°C)	0.6°F (0.4°C)	76th Coolest	Coolest since: 1937	1917
	30.3°F (-0.9°C)	29.7°F (-1.3°C)	0.6°F (0.4°C)	52nd Warmest	Warmest since: 1938	2015
	Ties: 1927, 1968, 2002
Jun 1938–May 1939 12-Month	31.5°F (-0.3°C)	30.8°F (-0.7°C)	0.7°F (0.4°C)	85th Coolest	Coolest since: 1937	1917
	31.5°F (-0.3°C)	30.8°F (-0.7°C)	0.7°F (0.4°C)	43rd Warmest	Warmest since: 1938	1934
	Ties: 1919, 1958, 1963, 1968, 1997
Dec 1937–May 1939 18-Month	29.2°F (-1.6°C)	28.0°F (-2.2°C)	1.2°F (0.6°C)	97th Coolest	Coolest since: 1938	1917
	29.2°F (-1.6°C)	28.0°F (-2.2°C)	1.2°F (0.6°C)	30th Warmest	Warmest since: 1935	2016
	Ties: 1919, 1978, 2001
Jun 1937–May 1939 24-Month	32.0°F (0.0°C)	30.8°F (-0.7°C)	1.2°F (0.7°C)	111th Coolest	Coolest since: 1938	1917
	32.0°F (0.0°C)	30.8°F (-0.7°C)	1.2°F (0.7°C)	16th Warmest	Warmest since: 1935	2016
	Ties: 1927, 1940, 1993, 1998, 2003, 2006, 2013
Jun 1936–May 1939 36-Month	30.9°F (-0.6°C)	30.8°F (-0.7°C)	0.1°F (0.1°C)	58th Coolest	Coolest since: 1938	1933
	30.9°F (-0.6°C)	30.8°F (-0.7°C)	0.1°F (0.1°C)	68th Warmest	Warmest since: 1936	2016
	Ties: 1947, 1972, 1976
Jun 1935–May 1939 48-Month	30.6°F (-0.8°C)	30.8°F (-0.7°C)	-0.2°F (-0.1°C)	36th Coolest	Coolest since: 1938	1932
	30.6°F (-0.8°C)	30.8°F (-0.7°C)	-0.2°F (-0.1°C)	89th Warmest	Warmest since: 1937	2018
	Ties: 1900, 1901, 1977, 1979, 1985, 1986
Jun 1934–May 1939 60-Month	30.7°F (-0.7°C)	30.8°F (-0.7°C)	-0.1°F (0.0°C)	45th Coolest	Coolest since: 1937	1933
	30.7°F (-0.7°C)	30.8°F (-0.7°C)	-0.1°F (0.0°C)	79th Warmest	Warmest since: 1938	2018
	Ties: 1901, 1902, 1904, 1948, 1960, 1964, 1966, 1975, 1976, 1988

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published November 2022, retrieved on December 4, 2022 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings