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 1970

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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 1970 1-Month	51.0°F (10.6°C)	53.8°F (12.1°C)	-2.8°F (-1.5°C)	20th Coolest	Coolest since: 1965	1965
September 1970 1-Month	51.0°F (10.6°C)	53.8°F (12.1°C)	-2.8°F (-1.5°C)	109th Warmest	Warmest since: 1969	1998
Aug–Sep 1970 2-Month	58.8°F (14.9°C)	59.0°F (15.0°C)	-0.2°F (-0.1°C)	54th Coolest	Coolest since: 1968	1965
	58.8°F (14.9°C)	59.0°F (15.0°C)	-0.2°F (-0.1°C)	75th Warmest	Warmest since: 1969	2022
	Ties: 1908, 2018
Jul–Sep 1970 3-Month	61.5°F (16.4°C)	61.2°F (16.2°C)	0.3°F (0.2°C)	61st Coolest	Coolest since: 1968	1912
	61.5°F (16.4°C)	61.2°F (16.2°C)	0.3°F (0.2°C)	68th Warmest	Warmest since: 1969	2022
	Ties: 1914, 1952, 1961, 1973
Jun–Sep 1970 4-Month	61.6°F (16.4°C)	60.5°F (15.8°C)	1.1°F (0.6°C)	95th Coolest	Coolest since: 1969	1993
	61.6°F (16.4°C)	60.5°F (15.8°C)	1.1°F (0.6°C)	34th Warmest	Warmest since: 1967	2021
	Ties: 1960
May–Sep 1970 5-Month	59.3°F (15.2°C)	58.4°F (14.7°C)	0.9°F (0.5°C)	87th Coolest	Coolest since: 1969	1907
	59.3°F (15.2°C)	58.4°F (14.7°C)	0.9°F (0.5°C)	42nd Warmest	Warmest since: 1966	1936
	Ties: 1976
Apr–Sep 1970 6-Month	55.3°F (12.9°C)	55.5°F (13.1°C)	-0.2°F (-0.2°C)	49th Coolest	Coolest since: 1968	1907
	55.3°F (12.9°C)	55.5°F (13.1°C)	-0.2°F (-0.2°C)	80th Warmest	Warmest since: 1969	1936
	Ties: 1898, 1926, 1943, 1973, 1983, 1986
Mar–Sep 1970 7-Month	51.1°F (10.6°C)	51.7°F (10.9°C)	-0.6°F (-0.3°C)	36th Coolest	Coolest since: 1968	1965
	51.1°F (10.6°C)	51.7°F (10.9°C)	-0.6°F (-0.3°C)	93rd Warmest	Warmest since: 1969	2012
	Ties: 1967, 1968, 1996
Feb–Sep 1970 8-Month	48.0°F (8.9°C)	47.9°F (8.8°C)	0.1°F (0.1°C)	68th Coolest	Coolest since: 1969	1899
	48.0°F (8.9°C)	47.9°F (8.8°C)	0.1°F (0.1°C)	61st Warmest	Warmest since: 1968	2012, 2016
	Ties: 1957, 1968
Jan–Sep 1970 9-Month	44.3°F (6.8°C)	44.5°F (6.9°C)	-0.2°F (-0.1°C)	55th Coolest	Coolest since: 1969	1899
	44.3°F (6.8°C)	44.5°F (6.9°C)	-0.2°F (-0.1°C)	74th Warmest	Warmest since: 1968	2012
	Ties: 1901, 1923, 1932, 1944, 1971, 2018
Dec 1969–Sep 1970 10-Month	42.3°F (5.7°C)	42.1°F (5.6°C)	0.2°F (0.1°C)	68th Coolest	Coolest since: 1969	1950
	42.3°F (5.7°C)	42.1°F (5.6°C)	0.2°F (0.1°C)	60th Warmest	Warmest since: 1967	2012
	Ties: 1910, 1948, 2002
Nov 1969–Sep 1970 11-Month	41.5°F (5.3°C)	41.0°F (5.0°C)	0.5°F (0.3°C)	78th Coolest	Coolest since: 1969	1899
	41.5°F (5.3°C)	41.0°F (5.0°C)	0.5°F (0.3°C)	50th Warmest	Warmest since: 1963	2012
	Ties: 1905, 1944, 2008
Oct 1969–Sep 1970 12-Month	41.1°F (5.1°C)	41.2°F (5.1°C)	-0.1°F (0.0°C)	56th Coolest	Coolest since: 1969	1899
	41.1°F (5.1°C)	41.2°F (5.1°C)	-0.1°F (0.0°C)	72nd Warmest	Warmest since: 1968	2012
	Ties: 1902, 1945, 1968, 2018
Apr 1969–Sep 1970 18-Month	46.3°F (7.9°C)	45.9°F (7.7°C)	0.4°F (0.2°C)	75th Coolest	Coolest since: 1969	1917
	46.3°F (7.9°C)	45.9°F (7.7°C)	0.4°F (0.2°C)	53rd Warmest	Warmest since: 1967	2016
	Ties: 1914, 1994, 2009, 2014
Oct 1968–Sep 1970 24-Month	40.2°F (4.6°C)	41.1°F (5.1°C)	-0.9°F (-0.5°C)	24th Coolest	Coolest since: 1969	1917
	40.2°F (4.6°C)	41.1°F (5.1°C)	-0.9°F (-0.5°C)	103rd Warmest	Warmest since: 1969	2016
	Ties: 1937, 1956, 1969, 1980
Oct 1967–Sep 1970 36-Month	40.5°F (4.7°C)	41.1°F (5.1°C)	-0.6°F (-0.4°C)	29th Coolest	Coolest since: 1957	1951
	40.5°F (4.7°C)	41.1°F (5.1°C)	-0.6°F (-0.4°C)	97th Warmest	Warmest since: 1969	2017
	Ties: 1903, 1907, 1919
Oct 1966–Sep 1970 48-Month	40.8°F (4.9°C)	41.1°F (5.1°C)	-0.3°F (-0.2°C)	38th Coolest	Coolest since: 1968	1952
	40.8°F (4.9°C)	41.1°F (5.1°C)	-0.3°F (-0.2°C)	87th Warmest	Warmest since: 1969	2007, 2017, 2018
	Ties: 1924, 1949, 1965
Oct 1965–Sep 1970 60-Month	41.0°F (5.0°C)	41.1°F (5.1°C)	-0.1°F (-0.1°C)	50th Coolest	Coolest since: 1969	1952
	41.0°F (5.0°C)	41.1°F (5.1°C)	-0.1°F (-0.1°C)	74th Warmest	Warmest since: 1967	2016
	Ties: 1925, 1926, 1927, 1932, 1966, 1976, 1980, 1986

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 31, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings