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 1975

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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 1975 1-Month	53.2°F (11.8°C)	53.8°F (12.1°C)	-0.6°F (-0.3°C)	43rd Coolest	Coolest since: 1974	1965
	53.2°F (11.8°C)	53.8°F (12.1°C)	-0.6°F (-0.3°C)	86th Warmest	Warmest since: 1969	1998
	Ties: 1925, 1928, 1962
Aug–Sep 1975 2-Month	57.0°F (13.9°C)	59.0°F (15.0°C)	-2.0°F (-1.1°C)	18th Coolest	Coolest since: 1974	1965
Aug–Sep 1975 2-Month	57.0°F (13.9°C)	59.0°F (15.0°C)	-2.0°F (-1.1°C)	111th Warmest	Warmest since: 1973	2022
Jul–Sep 1975 3-Month	60.7°F (15.9°C)	61.2°F (16.2°C)	-0.5°F (-0.3°C)	40th Coolest	Coolest since: 1974	1912
	60.7°F (15.9°C)	61.2°F (16.2°C)	-0.5°F (-0.3°C)	89th Warmest	Warmest since: 1973	2022
	Ties: 1901, 1941, 1956, 1999, 2010
Jun–Sep 1975 4-Month	59.5°F (15.3°C)	60.5°F (15.8°C)	-1.0°F (-0.5°C)	27th Coolest	Coolest since: 1972	1993
	59.5°F (15.3°C)	60.5°F (15.8°C)	-1.0°F (-0.5°C)	102nd Warmest	Warmest since: 1974	2021
	Ties: 1896, 1942
May–Sep 1975 5-Month	57.1°F (13.9°C)	58.4°F (14.7°C)	-1.3°F (-0.8°C)	20th Coolest	Coolest since: 1968	1907
May–Sep 1975 5-Month	57.1°F (13.9°C)	58.4°F (14.7°C)	-1.3°F (-0.8°C)	109th Warmest	Warmest since: 1974	1936
Apr–Sep 1975 6-Month	53.0°F (11.7°C)	55.5°F (13.1°C)	-2.5°F (-1.4°C)	4th Coolest	Coolest since: 1965	1907
	53.0°F (11.7°C)	55.5°F (13.1°C)	-2.5°F (-1.4°C)	125th Warmest	Warmest since: 1974	1936
	Ties: 1951
Mar–Sep 1975 7-Month	49.0°F (9.4°C)	51.7°F (10.9°C)	-2.7°F (-1.5°C)	7th Coolest	Coolest since: 1965	1965
Mar–Sep 1975 7-Month	49.0°F (9.4°C)	51.7°F (10.9°C)	-2.7°F (-1.5°C)	122nd Warmest	Warmest since: 1974	2012
Feb–Sep 1975 8-Month	44.8°F (7.1°C)	47.9°F (8.8°C)	-3.1°F (-1.7°C)	4th Coolest	Coolest since: 1965	1899
Feb–Sep 1975 8-Month	44.8°F (7.1°C)	47.9°F (8.8°C)	-3.1°F (-1.7°C)	125th Warmest	Warmest since: 1974	2012, 2016
Jan–Sep 1975 9-Month	42.0°F (5.6°C)	44.5°F (6.9°C)	-2.5°F (-1.3°C)	10th Coolest	Coolest since: 1965	1899
	42.0°F (5.6°C)	44.5°F (6.9°C)	-2.5°F (-1.3°C)	119th Warmest	Warmest since: 1974	2012
	Ties: 1895, 1982
Dec 1974–Sep 1975 10-Month	40.3°F (4.6°C)	42.1°F (5.6°C)	-1.8°F (-1.0°C)	16th Coolest	Coolest since: 1969	1950
	40.3°F (4.6°C)	42.1°F (5.6°C)	-1.8°F (-1.0°C)	112th Warmest	Warmest since: 1974	2012
	Ties: 1922
Nov 1974–Sep 1975 11-Month	39.6°F (4.2°C)	41.0°F (5.0°C)	-1.4°F (-0.8°C)	24th Coolest	Coolest since: 1969	1899
	39.6°F (4.2°C)	41.0°F (5.0°C)	-1.4°F (-0.8°C)	104th Warmest	Warmest since: 1974	2012
	Ties: 1896, 1897, 1904, 1911
Oct 1974–Sep 1975 12-Month	40.1°F (4.5°C)	41.2°F (5.1°C)	-1.1°F (-0.6°C)	30th Coolest	Coolest since: 1972	1899
	40.1°F (4.5°C)	41.2°F (5.1°C)	-1.1°F (-0.6°C)	98th Warmest	Warmest since: 1974	2012
	Ties: 1904, 1943, 1947
Apr 1974–Sep 1975 18-Month	45.1°F (7.3°C)	45.9°F (7.7°C)	-0.8°F (-0.4°C)	27th Coolest	Coolest since: 1972	1917
	45.1°F (7.3°C)	45.9°F (7.7°C)	-0.8°F (-0.4°C)	101st Warmest	Warmest since: 1974	2016
	Ties: 1909, 1936, 1972, 1978, 1996
Oct 1973–Sep 1975 24-Month	40.8°F (4.9°C)	41.1°F (5.1°C)	-0.3°F (-0.2°C)	43rd Coolest	Coolest since: 1973	1917
	40.8°F (4.9°C)	41.1°F (5.1°C)	-0.3°F (-0.2°C)	84th Warmest	Warmest since: 1974	2016
	Ties: 1911, 1920, 1948, 2011
Oct 1972–Sep 1975 36-Month	40.9°F (4.9°C)	41.1°F (5.1°C)	-0.2°F (-0.2°C)	46th Coolest	Coolest since: 1974	1951
	40.9°F (4.9°C)	41.1°F (5.1°C)	-0.2°F (-0.2°C)	80th Warmest	Warmest since: 1968	2017
	Ties: 1923, 1958, 1997
Oct 1971–Sep 1975 48-Month	40.7°F (4.8°C)	41.1°F (5.1°C)	-0.4°F (-0.3°C)	32nd Coolest	Coolest since: 1974	1952
	40.7°F (4.8°C)	41.1°F (5.1°C)	-0.4°F (-0.3°C)	93rd Warmest	Warmest since: 1974	2007, 2017, 2018
	Ties: 1954, 1957, 1968, 1974, 1979
Oct 1970–Sep 1975 60-Month	40.6°F (4.8°C)	41.1°F (5.1°C)	-0.5°F (-0.3°C)	27th Coolest	Coolest since: 1973	1952
	40.6°F (4.8°C)	41.1°F (5.1°C)	-0.5°F (-0.3°C)	97th Warmest	Warmest since: 1974	2016
	Ties: 1929, 1979

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on June 1, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings