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 1971

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
September 1971 1-Month	51.1°F (10.6°C)	53.8°F (12.1°C)	-2.7°F (-1.5°C)	21st Coolest	Coolest since: 1970	1965
September 1971 1-Month	51.1°F (10.6°C)	53.8°F (12.1°C)	-2.7°F (-1.5°C)	108th Warmest	Warmest since: 1969	1998
Aug–Sep 1971 2-Month	60.6°F (15.9°C)	59.0°F (15.0°C)	1.6°F (0.9°C)	94th Coolest	Coolest since: 1970	1965
	60.6°F (15.9°C)	59.0°F (15.0°C)	1.6°F (0.9°C)	35th Warmest	Warmest since: 1969	2022
	Ties: 1909, 1953, 1966, 2000
Jul–Sep 1971 3-Month	61.4°F (16.3°C)	61.2°F (16.2°C)	0.2°F (0.1°C)	56th Coolest	Coolest since: 1968	1912
	61.4°F (16.3°C)	61.2°F (16.2°C)	0.2°F (0.1°C)	73rd Warmest	Warmest since: 1970	2022
	Ties: 1908, 1955, 1984, 2018
Jun–Sep 1971 4-Month	60.6°F (15.9°C)	60.5°F (15.8°C)	0.1°F (0.1°C)	59th Coolest	Coolest since: 1968	1993
	60.6°F (15.9°C)	60.5°F (15.8°C)	0.1°F (0.1°C)	70th Warmest	Warmest since: 1970	2021
	Ties: 1905, 2008
May–Sep 1971 5-Month	58.6°F (14.8°C)	58.4°F (14.7°C)	0.2°F (0.1°C)	66th Coolest	Coolest since: 1968	1907
	58.6°F (14.8°C)	58.4°F (14.7°C)	0.2°F (0.1°C)	63rd Warmest	Warmest since: 1970	1936
	Ties: 1914, 1920, 1980, 1983
Apr–Sep 1971 6-Month	55.6°F (13.1°C)	55.5°F (13.1°C)	0.1°F (0.0°C)	66th Coolest	Coolest since: 1970	1907
	55.6°F (13.1°C)	55.5°F (13.1°C)	0.1°F (0.0°C)	63rd Warmest	Warmest since: 1969	1936
	Ties: 1913
Mar–Sep 1971 7-Month	51.7°F (10.9°C)	51.7°F (10.9°C)	0.0°F (0.0°C)	55th Coolest	Coolest since: 1970	1965
	51.7°F (10.9°C)	51.7°F (10.9°C)	0.0°F (0.0°C)	74th Warmest	Warmest since: 1969	2012
	Ties: 1923, 1932, 1956
Feb–Sep 1971 8-Month	48.1°F (8.9°C)	47.9°F (8.8°C)	0.2°F (0.1°C)	75th Coolest	Coolest since: 1970	1899
	48.1°F (8.9°C)	47.9°F (8.8°C)	0.2°F (0.1°C)	54th Warmest	Warmest since: 1966	2012, 2016
	Ties: 1933, 1939, 1953, 1995, 2008, 2010
Jan–Sep 1971 9-Month	44.3°F (6.8°C)	44.5°F (6.9°C)	-0.2°F (-0.1°C)	55th Coolest	Coolest since: 1970	1899
	44.3°F (6.8°C)	44.5°F (6.9°C)	-0.2°F (-0.1°C)	74th Warmest	Warmest since: 1970	2012
	Ties: 1901, 1923, 1932, 1944, 1970, 2018
Dec 1970–Sep 1971 10-Month	41.7°F (5.4°C)	42.1°F (5.6°C)	-0.4°F (-0.2°C)	45th Coolest	Coolest since: 1969	1950
	41.7°F (5.4°C)	42.1°F (5.6°C)	-0.4°F (-0.2°C)	83rd Warmest	Warmest since: 1970	2012
	Ties: 1898, 1945, 1989
Nov 1970–Sep 1971 11-Month	40.4°F (4.7°C)	41.0°F (5.0°C)	-0.6°F (-0.3°C)	42nd Coolest	Coolest since: 1969	1899
	40.4°F (4.7°C)	41.0°F (5.0°C)	-0.6°F (-0.3°C)	86th Warmest	Warmest since: 1970	2012
	Ties: 1945, 1947, 1957, 1996, 1997
Oct 1970–Sep 1971 12-Month	40.4°F (4.7°C)	41.2°F (5.1°C)	-0.8°F (-0.4°C)	37th Coolest	Coolest since: 1969	1899
	40.4°F (4.7°C)	41.2°F (5.1°C)	-0.8°F (-0.4°C)	91st Warmest	Warmest since: 1970	2012
	Ties: 1936, 1996, 2019
Apr 1970–Sep 1971 18-Month	45.3°F (7.4°C)	45.9°F (7.7°C)	-0.6°F (-0.3°C)	35th Coolest	Coolest since: 1969	1917
	45.3°F (7.4°C)	45.9°F (7.7°C)	-0.6°F (-0.3°C)	93rd Warmest	Warmest since: 1970	2016
	Ties: 1947, 1955
Oct 1969–Sep 1971 24-Month	40.7°F (4.8°C)	41.1°F (5.1°C)	-0.4°F (-0.3°C)	38th Coolest	Coolest since: 1970	1917
	40.7°F (4.8°C)	41.1°F (5.1°C)	-0.4°F (-0.3°C)	89th Warmest	Warmest since: 1968	2016
	Ties: 1910, 1960, 1985, 2019
Oct 1968–Sep 1971 36-Month	40.3°F (4.6°C)	41.1°F (5.1°C)	-0.8°F (-0.5°C)	19th Coolest	Coolest since: 1957	1951
	40.3°F (4.6°C)	41.1°F (5.1°C)	-0.8°F (-0.5°C)	107th Warmest	Warmest since: 1970	2017
	Ties: 1901, 1905, 1924, 1949, 1953, 1957
Oct 1967–Sep 1971 48-Month	40.5°F (4.7°C)	41.1°F (5.1°C)	-0.6°F (-0.4°C)	23rd Coolest	Coolest since: 1953	1952
	40.5°F (4.7°C)	41.1°F (5.1°C)	-0.6°F (-0.4°C)	102nd Warmest	Warmest since: 1970	2007, 2017, 2018
	Ties: 1902, 1905, 1909, 1910
Oct 1966–Sep 1971 60-Month	40.7°F (4.8°C)	41.1°F (5.1°C)	-0.4°F (-0.3°C)	30th Coolest	Coolest since: 1969	1952
	40.7°F (4.8°C)	41.1°F (5.1°C)	-0.4°F (-0.3°C)	94th Warmest	Warmest since: 1970	2016
	Ties: 1905, 1906, 1910

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on June 7, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings