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.

Montana

Average Temperature Rankings, September 1923

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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 1923 1-Month	55.7°F (13.2°C)	53.8°F (12.1°C)	1.9°F (1.1°C)	92nd Coolest	Coolest since: 1921	1965
	55.7°F (13.2°C)	53.8°F (12.1°C)	1.9°F (1.1°C)	37th Warmest	Warmest since: 1922	1998
	Ties: 2002
Aug–Sep 1923 2-Month	59.0°F (15.0°C)	59.0°F (15.0°C)	0.0°F (0.0°C)	59th Coolest	Coolest since: 1921	1965
	59.0°F (15.0°C)	59.0°F (15.0°C)	0.0°F (0.0°C)	70th Warmest	Warmest since: 1922	2022
	Ties: 1957, 1999, 2010
Jul–Sep 1923 3-Month	62.0°F (16.7°C)	61.2°F (16.2°C)	0.8°F (0.5°C)	79th Coolest	Coolest since: 1921	1912
Jul–Sep 1923 3-Month	62.0°F (16.7°C)	61.2°F (16.2°C)	0.8°F (0.5°C)	50th Warmest	Warmest since: 1922	2022
Jun–Sep 1923 4-Month	61.2°F (16.2°C)	60.5°F (15.8°C)	0.7°F (0.4°C)	86th Coolest	Coolest since: 1921	1993
	61.2°F (16.2°C)	60.5°F (15.8°C)	0.7°F (0.4°C)	43rd Warmest	Warmest since: 1922	2021
	Ties: 1983, 2005
May–Sep 1923 5-Month	59.0°F (15.0°C)	58.4°F (14.7°C)	0.6°F (0.3°C)	81st Coolest	Coolest since: 1921	1907
	59.0°F (15.0°C)	58.4°F (14.7°C)	0.6°F (0.3°C)	48th Warmest	Warmest since: 1922	1936
	Ties: 1941, 1948, 1952, 1956, 1969, 1989, 2011, 2014
Apr–Sep 1923 6-Month	55.7°F (13.2°C)	55.5°F (13.1°C)	0.2°F (0.1°C)	72nd Coolest	Coolest since: 1921	1907
	55.7°F (13.2°C)	55.5°F (13.1°C)	0.2°F (0.1°C)	57th Warmest	Warmest since: 1922	1936
	Ties: 1906, 1914, 1946, 1957, 1979
Mar–Sep 1923 7-Month	51.7°F (10.9°C)	51.7°F (10.9°C)	0.0°F (0.0°C)	55th Coolest	Coolest since: 1920	1965
	51.7°F (10.9°C)	51.7°F (10.9°C)	0.0°F (0.0°C)	74th Warmest	Warmest since: 1922	2012
	Ties: 1932, 1956, 1971
Feb–Sep 1923 8-Month	47.0°F (8.3°C)	47.9°F (8.8°C)	-0.9°F (-0.5°C)	31st Coolest	Coolest since: 1922	1899
Feb–Sep 1923 8-Month	47.0°F (8.3°C)	47.9°F (8.8°C)	-0.9°F (-0.5°C)	98th Warmest	Warmest since: 1921	2012, 2016
Jan–Sep 1923 9-Month	44.3°F (6.8°C)	44.5°F (6.9°C)	-0.2°F (-0.1°C)	55th Coolest	Coolest since: 1922	1899
	44.3°F (6.8°C)	44.5°F (6.9°C)	-0.2°F (-0.1°C)	74th Warmest	Warmest since: 1921	2012
	Ties: 1901, 1932, 1944, 1970, 1971, 2018
Dec 1922–Sep 1923 10-Month	41.1°F (5.1°C)	42.1°F (5.6°C)	-1.0°F (-0.5°C)	35th Coolest	Coolest since: 1922	1950
Dec 1922–Sep 1923 10-Month	41.1°F (5.1°C)	42.1°F (5.6°C)	-1.0°F (-0.5°C)	93rd Warmest	Warmest since: 1921	2012
Nov 1922–Sep 1923 11-Month	40.0°F (4.4°C)	41.0°F (5.0°C)	-1.0°F (-0.6°C)	33rd Coolest	Coolest since: 1922	1899
	40.0°F (4.4°C)	41.0°F (5.0°C)	-1.0°F (-0.6°C)	95th Warmest	Warmest since: 1921	2012
	Ties: 1909, 1985
Oct 1922–Sep 1923 12-Month	40.5°F (4.7°C)	41.2°F (5.1°C)	-0.7°F (-0.4°C)	41st Coolest	Coolest since: 1922	1899
	40.5°F (4.7°C)	41.2°F (5.1°C)	-0.7°F (-0.4°C)	87th Warmest	Warmest since: 1921	2012
	Ties: 1997
Apr 1922–Sep 1923 18-Month	45.8°F (7.7°C)	45.9°F (7.7°C)	-0.1°F (0.0°C)	53rd Coolest	Coolest since: 1922	1917
	45.8°F (7.7°C)	45.9°F (7.7°C)	-0.1°F (0.0°C)	75th Warmest	Warmest since: 1921	2016
	Ties: 1898, 1902, 1968, 2010
Oct 1921–Sep 1923 24-Month	40.1°F (4.5°C)	41.1°F (5.1°C)	-1.0°F (-0.6°C)	21st Coolest	Coolest since: 1918	1917
	40.1°F (4.5°C)	41.1°F (5.1°C)	-1.0°F (-0.6°C)	106th Warmest	Warmest since: 1922	2016
	Ties: 1903, 1972
Oct 1920–Sep 1923 36-Month	40.9°F (4.9°C)	41.1°F (5.1°C)	-0.2°F (-0.2°C)	46th Coolest	Coolest since: 1922	1951
	40.9°F (4.9°C)	41.1°F (5.1°C)	-0.2°F (-0.2°C)	80th Warmest	Warmest since: 1921	2017
	Ties: 1958, 1975, 1997
Oct 1919–Sep 1923 48-Month	40.2°F (4.6°C)	41.1°F (5.1°C)	-0.9°F (-0.5°C)	16th Coolest	Coolest since: 1920	1952
	40.2°F (4.6°C)	41.1°F (5.1°C)	-0.9°F (-0.5°C)	109th Warmest	Warmest since: 1922	2007, 2017, 2018
	Ties: 1972
Oct 1918–Sep 1923 60-Month	40.8°F (4.9°C)	41.1°F (5.1°C)	-0.3°F (-0.2°C)	34th Coolest	Coolest since: 1921	1952
	40.8°F (4.9°C)	41.1°F (5.1°C)	-0.3°F (-0.2°C)	90th Warmest	Warmest since: 1922	2016
	Ties: 1908, 1909, 1931, 1955, 1974, 1982

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 23, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings