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

Average Temperature Rankings, September 1901

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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 1901 1-Month	50.6°F (10.3°C)	54.7°F (12.6°C)	-4.1°F (-2.3°C)	11th Coolest	Coolest to Date	1912, 1965
September 1901 1-Month	50.6°F (10.3°C)	54.7°F (12.6°C)	-4.1°F (-2.3°C)	118th Warmest	Warmest since: 1900	1990
Aug–Sep 1901 2-Month	58.5°F (14.7°C)	59.2°F (15.1°C)	-0.7°F (-0.4°C)	36th Coolest	Coolest since: 1900	1912
	58.5°F (14.7°C)	59.2°F (15.1°C)	-0.7°F (-0.4°C)	93rd Warmest	Warmest since: 1898	2022
	Ties: 1924, 1996
Jul–Sep 1901 3-Month	61.3°F (16.3°C)	61.1°F (16.2°C)	0.2°F (0.1°C)	62nd Coolest	Coolest since: 1900	1912
	61.3°F (16.3°C)	61.1°F (16.2°C)	0.2°F (0.1°C)	67th Warmest	Warmest since: 1898	2022
	Ties: 1946, 1996
Jun–Sep 1901 4-Month	58.9°F (14.9°C)	60.0°F (15.6°C)	-1.1°F (-0.7°C)	17th Coolest	Coolest since: 1895	1993
	58.9°F (14.9°C)	60.0°F (15.6°C)	-1.1°F (-0.7°C)	112th Warmest	Warmest since: 1900	2021
	Ties: 1903, 1968
May–Sep 1901 5-Month	57.7°F (14.3°C)	57.9°F (14.4°C)	-0.2°F (-0.1°C)	50th Coolest	Coolest since: 1899	1912
	57.7°F (14.3°C)	57.9°F (14.4°C)	-0.2°F (-0.1°C)	79th Warmest	Warmest since: 1900	2021
	Ties: 1948
Apr–Sep 1901 6-Month	54.6°F (12.6°C)	55.1°F (12.8°C)	-0.5°F (-0.2°C)	40th Coolest	Coolest since: 1899	1912
	54.6°F (12.6°C)	55.1°F (12.8°C)	-0.5°F (-0.2°C)	89th Warmest	Warmest since: 1900	2021
	Ties: 1980
Mar–Sep 1901 7-Month	51.3°F (10.7°C)	51.8°F (11.0°C)	-0.5°F (-0.3°C)	41st Coolest	Coolest since: 1899	1912
	51.3°F (10.7°C)	51.8°F (11.0°C)	-0.5°F (-0.3°C)	88th Warmest	Warmest since: 1900	1934, 2015
	Ties: 1932, 1933, 1943, 1953, 1959, 1995
Feb–Sep 1901 8-Month	48.0°F (8.9°C)	48.7°F (9.3°C)	-0.7°F (-0.4°C)	34th Coolest	Coolest since: 1899	1964
	48.0°F (8.9°C)	48.7°F (9.3°C)	-0.7°F (-0.4°C)	95th Warmest	Warmest since: 1900	1934, 2015
	Ties: 1908, 1951, 1962, 2011
Jan–Sep 1901 9-Month	45.4°F (7.4°C)	45.7°F (7.6°C)	-0.3°F (-0.2°C)	45th Coolest	Coolest since: 1899	1917
	45.4°F (7.4°C)	45.7°F (7.6°C)	-0.3°F (-0.2°C)	84th Warmest	Warmest since: 1900	1934
	Ties: 1956
Dec 1900–Sep 1901 10-Month	43.7°F (6.5°C)	43.5°F (6.4°C)	0.2°F (0.1°C)	62nd Coolest	Coolest since: 1899	1917
	43.7°F (6.5°C)	43.5°F (6.4°C)	0.2°F (0.1°C)	66th Warmest	Warmest since: 1900	1934
	Ties: 1931
Nov 1900–Sep 1901 11-Month	42.6°F (5.9°C)	42.5°F (5.8°C)	0.1°F (0.1°C)	60th Coolest	Coolest since: 1899	1917
	42.6°F (5.9°C)	42.5°F (5.8°C)	0.1°F (0.1°C)	68th Warmest	Warmest since: 1900	1934
	Ties: 1921, 1924, 1946, 1951, 1969, 1980, 1995, 1999, 2010
Oct 1900–Sep 1901 12-Month	42.6°F (5.9°C)	42.6°F (5.9°C)	0.0°F (0.0°C)	54th Coolest	Coolest since: 1899	1917
	42.6°F (5.9°C)	42.6°F (5.9°C)	0.0°F (0.0°C)	74th Warmest	Warmest since: 1900	1934
	Ties: 1904, 1927, 1969, 1995
Apr 1900–Sep 1901 18-Month	46.9°F (8.3°C)	46.7°F (8.2°C)	0.2°F (0.1°C)	65th Coolest	Coolest since: 1899	1917
	46.9°F (8.3°C)	46.7°F (8.2°C)	0.2°F (0.1°C)	63rd Warmest	Warmest since: 1900	2015
	Ties: 1914
Oct 1899–Sep 1901 24-Month	43.2°F (6.2°C)	42.6°F (5.9°C)	0.6°F (0.3°C)	86th Coolest	Coolest since: 1900	1917
	43.2°F (6.2°C)	42.6°F (5.9°C)	0.6°F (0.3°C)	41st Warmest	Warmest to Date	2016
	Ties: 1968, 1982, 1987, 2002
Oct 1898–Sep 1901 36-Month	42.3°F (5.7°C)	42.6°F (5.9°C)	-0.3°F (-0.2°C)	38th Coolest	Coolest since: 1899	1917
	42.3°F (5.7°C)	42.6°F (5.9°C)	-0.3°F (-0.2°C)	88th Warmest	Warmest since: 1900	2017
	Ties: 1911, 1916, 1919, 1945, 1974, 1987
Oct 1897–Sep 1901 48-Month	42.4°F (5.8°C)	42.6°F (5.9°C)	-0.2°F (-0.1°C)	40th Coolest	Coolest since: 1900	1913, 1917, 1932
	42.4°F (5.8°C)	42.6°F (5.9°C)	-0.2°F (-0.1°C)	85th Warmest	Warmest since: 1900	2018
	Ties: 1900, 1902, 1909, 1911, 1929, 1944, 1971, 1978, 1979
Oct 1896–Sep 1901 60-Month	42.4°F (5.8°C)	42.6°F (5.9°C)	-0.2°F (-0.1°C)	39th Coolest	Coolest to Date	1917, 1933
	42.4°F (5.8°C)	42.6°F (5.9°C)	-0.2°F (-0.1°C)	85th Warmest	Warmest since: 1900	2016, 2017, 2018
	Ties: 1910, 1911, 1922, 1945, 1955, 1957, 1958, 1964, 1965

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 27, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings