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 1981

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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 1981 1-Month	56.5°F (13.6°C)	53.8°F (12.1°C)	2.7°F (1.5°C)	100th Coolest	Coolest since: 1980	1965
	56.5°F (13.6°C)	53.8°F (12.1°C)	2.7°F (1.5°C)	29th Warmest	Warmest since: 1979	1998
	Ties: 1987
Aug–Sep 1981 2-Month	61.6°F (16.4°C)	59.0°F (15.0°C)	2.6°F (1.4°C)	110th Coolest	Coolest since: 1980	1965
	61.6°F (16.4°C)	59.0°F (15.0°C)	2.6°F (1.4°C)	19th Warmest	Warmest since: 1979	2022
	Ties: 1979, 2015
Jul–Sep 1981 3-Month	62.8°F (17.1°C)	61.2°F (16.2°C)	1.6°F (0.9°C)	98th Coolest	Coolest since: 1980	1912
	62.8°F (17.1°C)	61.2°F (16.2°C)	1.6°F (0.9°C)	31st Warmest	Warmest since: 1979	2022
	Ties: 1931
Jun–Sep 1981 4-Month	61.0°F (16.1°C)	60.5°F (15.8°C)	0.5°F (0.3°C)	81st Coolest	Coolest since: 1980	1993
	61.0°F (16.1°C)	60.5°F (15.8°C)	0.5°F (0.3°C)	48th Warmest	Warmest since: 1979	2021
	Ties: 1921, 1949, 2014
May–Sep 1981 5-Month	58.9°F (14.9°C)	58.4°F (14.7°C)	0.5°F (0.2°C)	72nd Coolest	Coolest since: 1980	1907
May–Sep 1981 5-Month	58.9°F (14.9°C)	58.4°F (14.7°C)	0.5°F (0.2°C)	57th Warmest	Warmest since: 1979	1936
Apr–Sep 1981 6-Month	56.4°F (13.6°C)	55.5°F (13.1°C)	0.9°F (0.5°C)	91st Coolest	Coolest since: 1979	1907
	56.4°F (13.6°C)	55.5°F (13.1°C)	0.9°F (0.5°C)	38th Warmest	Warmest since: 1980	1936
	Ties: 1922, 1933, 1961, 2020
Mar–Sep 1981 7-Month	53.5°F (11.9°C)	51.7°F (10.9°C)	1.8°F (1.0°C)	105th Coolest	Coolest since: 1980	1965
Mar–Sep 1981 7-Month	53.5°F (11.9°C)	51.7°F (10.9°C)	1.8°F (1.0°C)	24th Warmest	Warmest since: 1940	2012
Feb–Sep 1981 8-Month	50.1°F (10.1°C)	47.9°F (8.8°C)	2.2°F (1.3°C)	110th Coolest	Coolest since: 1980	1899
Feb–Sep 1981 8-Month	50.1°F (10.1°C)	47.9°F (8.8°C)	2.2°F (1.3°C)	19th Warmest	Warmest since: 1963	2012, 2016
Jan–Sep 1981 9-Month	47.7°F (8.7°C)	44.5°F (6.9°C)	3.2°F (1.8°C)	119th Coolest	Coolest since: 1980	1899
	47.7°F (8.7°C)	44.5°F (6.9°C)	3.2°F (1.8°C)	10th Warmest	Warmest since: 1934	2012
	Ties: 1988
Dec 1980–Sep 1981 10-Month	45.3°F (7.4°C)	42.1°F (5.6°C)	3.2°F (1.8°C)	115th Coolest	Coolest since: 1980	1950
	45.3°F (7.4°C)	42.1°F (5.6°C)	3.2°F (1.8°C)	13th Warmest	Warmest since: 1934	2012
	Ties: 1988
Nov 1980–Sep 1981 11-Month	44.2°F (6.8°C)	41.0°F (5.0°C)	3.2°F (1.8°C)	118th Coolest	Coolest since: 1980	1899
	44.2°F (6.8°C)	41.0°F (5.0°C)	3.2°F (1.8°C)	10th Warmest	Warmest since: 1934	2012
	Ties: 1992, 2007
Oct 1980–Sep 1981 12-Month	44.2°F (6.8°C)	41.2°F (5.1°C)	3.0°F (1.7°C)	120th Coolest	Coolest since: 1980	1899
Oct 1980–Sep 1981 12-Month	44.2°F (6.8°C)	41.2°F (5.1°C)	3.0°F (1.7°C)	8th Warmest	Warmest since: 1934	2012
Apr 1980–Sep 1981 18-Month	48.3°F (9.1°C)	45.9°F (7.7°C)	2.4°F (1.4°C)	118th Coolest	Coolest since: 1980	1917
Apr 1980–Sep 1981 18-Month	48.3°F (9.1°C)	45.9°F (7.7°C)	2.4°F (1.4°C)	10th Warmest	Warmest since: 1934	2016
Oct 1979–Sep 1981 24-Month	43.2°F (6.2°C)	41.1°F (5.1°C)	2.1°F (1.1°C)	116th Coolest	Coolest since: 1980	1917
	43.2°F (6.2°C)	41.1°F (5.1°C)	2.1°F (1.1°C)	11th Warmest	Warmest to Date	2016
	Ties: 1992, 2021
Oct 1978–Sep 1981 36-Month	41.6°F (5.3°C)	41.1°F (5.1°C)	0.5°F (0.2°C)	81st Coolest	Coolest since: 1980	1951
	41.6°F (5.3°C)	41.1°F (5.1°C)	0.5°F (0.2°C)	45th Warmest	Warmest since: 1977	2017
	Ties: 1926, 1964, 1987, 1998, 2019
Oct 1977–Sep 1981 48-Month	41.0°F (5.0°C)	41.1°F (5.1°C)	-0.1°F (-0.1°C)	49th Coolest	Coolest since: 1980	1952
	41.0°F (5.0°C)	41.1°F (5.1°C)	-0.1°F (-0.1°C)	76th Warmest	Warmest since: 1978	2007, 2017, 2018
	Ties: 1911, 1931, 1969
Oct 1976–Sep 1981 60-Month	41.3°F (5.2°C)	41.1°F (5.1°C)	0.2°F (0.1°C)	66th Coolest	Coolest since: 1980	1952
	41.3°F (5.2°C)	41.1°F (5.1°C)	0.2°F (0.1°C)	58th Warmest	Warmest since: 1977	2016
	Ties: 1933, 1939, 1946

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 30, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings