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 1921

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1921 1-Month	49.6°F (9.8°C)	54.7°F (12.6°C)	-5.1°F (-2.8°C)	5th Coolest	Coolest since: 1912	1912, 1965
September 1921 1-Month	49.6°F (9.8°C)	54.7°F (12.6°C)	-5.1°F (-2.8°C)	124th Warmest	Warmest since: 1920	1990
Aug–Sep 1921 2-Month	56.7°F (13.7°C)	59.1°F (15.1°C)	-2.4°F (-1.4°C)	10th Coolest	Coolest since: 1912	1912
	56.7°F (13.7°C)	59.1°F (15.1°C)	-2.4°F (-1.4°C)	119th Warmest	Warmest since: 1920	2022
	Ties: 1911
Jul–Sep 1921 3-Month	59.5°F (15.3°C)	61.1°F (16.2°C)	-1.6°F (-0.9°C)	11th Coolest	Coolest since: 1912	1912
Jul–Sep 1921 3-Month	59.5°F (15.3°C)	61.1°F (16.2°C)	-1.6°F (-0.9°C)	118th Warmest	Warmest since: 1920	2022
Jun–Sep 1921 4-Month	59.4°F (15.2°C)	60.0°F (15.6°C)	-0.6°F (-0.4°C)	30th Coolest	Coolest since: 1916	1993
	59.4°F (15.2°C)	60.0°F (15.6°C)	-0.6°F (-0.4°C)	99th Warmest	Warmest since: 1920	2021
	Ties: 1913, 1947, 1972, 1975, 1983, 1984, 1985
May–Sep 1921 5-Month	57.5°F (14.2°C)	57.9°F (14.4°C)	-0.4°F (-0.2°C)	43rd Coolest	Coolest since: 1920	1912
	57.5°F (14.2°C)	57.9°F (14.4°C)	-0.4°F (-0.2°C)	86th Warmest	Warmest since: 1919	2021
	Ties: 1905, 1976
Apr–Sep 1921 6-Month	54.2°F (12.3°C)	55.0°F (12.8°C)	-0.8°F (-0.5°C)	31st Coolest	Coolest since: 1920	1912
	54.2°F (12.3°C)	55.0°F (12.8°C)	-0.8°F (-0.5°C)	98th Warmest	Warmest since: 1919	2021
	Ties: 1896, 1944, 1995
Mar–Sep 1921 7-Month	51.5°F (10.8°C)	51.8°F (11.0°C)	-0.3°F (-0.2°C)	52nd Coolest	Coolest since: 1920	1912
	51.5°F (10.8°C)	51.8°F (11.0°C)	-0.3°F (-0.2°C)	77th Warmest	Warmest since: 1919	1934, 2015
	Ties: 1906, 1980, 1985
Feb–Sep 1921 8-Month	48.4°F (9.1°C)	48.6°F (9.2°C)	-0.2°F (-0.1°C)	47th Coolest	Coolest since: 1920	1964
	48.4°F (9.1°C)	48.6°F (9.2°C)	-0.2°F (-0.1°C)	82nd Warmest	Warmest since: 1919	1934, 2015
	Ties: 1906, 1937, 2010
Jan–Sep 1921 9-Month	45.8°F (7.7°C)	45.7°F (7.6°C)	0.1°F (0.1°C)	57th Coolest	Coolest since: 1920	1917
	45.8°F (7.7°C)	45.7°F (7.6°C)	0.1°F (0.1°C)	72nd Warmest	Warmest since: 1919	1934
	Ties: 1977, 1999
Dec 1920–Sep 1921 10-Month	43.8°F (6.6°C)	43.6°F (6.4°C)	0.2°F (0.2°C)	68th Coolest	Coolest since: 1920	1917
	43.8°F (6.6°C)	43.6°F (6.4°C)	0.2°F (0.2°C)	60th Warmest	Warmest since: 1919	1934
	Ties: 1898, 1936, 1969, 1977
Nov 1920–Sep 1921 11-Month	42.6°F (5.9°C)	42.5°F (5.8°C)	0.1°F (0.1°C)	69th Coolest	Coolest since: 1920	1917
	42.6°F (5.9°C)	42.5°F (5.8°C)	0.1°F (0.1°C)	59th Warmest	Warmest since: 1919	1934
	Ties: 1901, 1924, 1946, 1951, 1969, 1980, 1995, 1999, 2010
Oct 1920–Sep 1921 12-Month	42.4°F (5.8°C)	42.5°F (5.8°C)	-0.1°F (0.0°C)	44th Coolest	Coolest since: 1920	1917
	42.4°F (5.8°C)	42.5°F (5.8°C)	-0.1°F (0.0°C)	84th Warmest	Warmest since: 1919	1934
	Ties: 1910, 1943, 1945, 1948, 1968
Apr 1920–Sep 1921 18-Month	46.2°F (7.9°C)	46.7°F (8.2°C)	-0.5°F (-0.3°C)	27th Coolest	Coolest since: 1920	1917
	46.2°F (7.9°C)	46.7°F (8.2°C)	-0.5°F (-0.3°C)	101st Warmest	Warmest since: 1919	2015
	Ties: 1904, 1906, 1909, 1910, 1962, 1993
Oct 1919–Sep 1921 24-Month	41.5°F (5.3°C)	42.6°F (5.9°C)	-1.1°F (-0.6°C)	12th Coolest	Coolest since: 1917	1917
Oct 1919–Sep 1921 24-Month	41.5°F (5.3°C)	42.6°F (5.9°C)	-1.1°F (-0.6°C)	115th Warmest	Warmest since: 1920	2016
Oct 1918–Sep 1921 36-Month	42.1°F (5.6°C)	42.6°F (5.9°C)	-0.5°F (-0.3°C)	26th Coolest	Coolest since: 1918	1917
	42.1°F (5.6°C)	42.6°F (5.9°C)	-0.5°F (-0.3°C)	100th Warmest	Warmest since: 1920	2017
	Ties: 1903, 1904, 1977
Oct 1917–Sep 1921 48-Month	42.7°F (5.9°C)	42.6°F (5.9°C)	0.1°F (0.0°C)	70th Coolest	Coolest since: 1920	1913, 1917, 1932
	42.7°F (5.9°C)	42.6°F (5.9°C)	0.1°F (0.0°C)	55th Warmest	Warmest since: 1908	2018
	Ties: 1908, 1934, 1938, 1939, 1948, 1962, 1967, 1980, 1982, 2011
Oct 1916–Sep 1921 60-Month	41.9°F (5.5°C)	42.5°F (5.8°C)	-0.6°F (-0.3°C)	12th Coolest	Coolest since: 1920	1917, 1933
	41.9°F (5.5°C)	42.5°F (5.8°C)	-0.6°F (-0.3°C)	112th Warmest	Warmest since: 1919	2016, 2017, 2018
	Ties: 1923

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on January 26, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings