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, May 1900

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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
May 1900 1-Month	54.6°F (12.6°C)	50.2°F (10.1°C)	4.4°F (2.5°C)	119th Coolest	Coolest since: 1899	1907, 1927
May 1900 1-Month	54.6°F (12.6°C)	50.2°F (10.1°C)	4.4°F (2.5°C)	10th Warmest	Warmest since: 1897	1934
Apr–May 1900 2-Month	49.9°F (9.9°C)	45.5°F (7.5°C)	4.4°F (2.4°C)	125th Coolest	Coolest since: 1899	1975
	49.9°F (9.9°C)	45.5°F (7.5°C)	4.4°F (2.4°C)	4th Warmest	Warmest to Date	1934
	Ties: 1980
Mar–May 1900 3-Month	43.9°F (6.6°C)	40.1°F (4.5°C)	3.8°F (2.1°C)	118th Coolest	Coolest since: 1899	1899
Mar–May 1900 3-Month	43.9°F (6.6°C)	40.1°F (4.5°C)	3.8°F (2.1°C)	11th Warmest	Warmest to Date	1910
Feb–May 1900 4-Month	37.1°F (2.8°C)	35.4°F (1.9°C)	1.7°F (0.9°C)	95th Coolest	Coolest since: 1899	1899
	37.1°F (2.8°C)	35.4°F (1.9°C)	1.7°F (0.9°C)	34th Warmest	Warmest to Date	1992
	Ties: 1990
Jan–May 1900 5-Month	34.8°F (1.6°C)	31.7°F (-0.2°C)	3.1°F (1.8°C)	109th Coolest	Coolest since: 1899	1899
	34.8°F (1.6°C)	31.7°F (-0.2°C)	3.1°F (1.8°C)	20th Warmest	Warmest to Date	1992
	Ties: 1925, 1941, 1988, 1990
Dec 1899–May 1900 6-Month	32.4°F (0.2°C)	29.9°F (-1.2°C)	2.5°F (1.4°C)	100th Coolest	Coolest since: 1899	1917
	32.4°F (0.2°C)	29.9°F (-1.2°C)	2.5°F (1.4°C)	28th Warmest	Warmest to Date	1992
	Ties: 1990, 1994, 2021
Nov 1899–May 1900 7-Month	33.1°F (0.6°C)	29.8°F (-1.2°C)	3.3°F (1.8°C)	113th Coolest	Coolest since: 1899	1899
	33.1°F (0.6°C)	29.8°F (-1.2°C)	3.3°F (1.8°C)	15th Warmest	Warmest to Date	1992
	Ties: 2007
Oct 1899–May 1900 8-Month	33.9°F (1.1°C)	31.5°F (-0.3°C)	2.4°F (1.4°C)	109th Coolest	Coolest since: 1899	1899
	33.9°F (1.1°C)	31.5°F (-0.3°C)	2.4°F (1.4°C)	19th Warmest	Warmest to Date	1934, 2000
	Ties: 1963
Sep 1899–May 1900 9-Month	36.4°F (2.4°C)	34.0°F (1.1°C)	2.4°F (1.3°C)	111th Coolest	Coolest since: 1899	1899
Sep 1899–May 1900 9-Month	36.4°F (2.4°C)	34.0°F (1.1°C)	2.4°F (1.3°C)	17th Warmest	Warmest to Date	2016
Aug 1899–May 1900 10-Month	38.8°F (3.8°C)	37.0°F (2.8°C)	1.8°F (1.0°C)	102nd Coolest	Coolest since: 1899	1917
	38.8°F (3.8°C)	37.0°F (2.8°C)	1.8°F (1.0°C)	26th Warmest	Warmest to Date	1992, 2016
	Ties: 1990, 2013, 2017
Jul 1899–May 1900 11-Month	41.2°F (5.1°C)	39.6°F (4.2°C)	1.6°F (0.9°C)	97th Coolest	Coolest since: 1899	1917
	41.2°F (5.1°C)	39.6°F (4.2°C)	1.6°F (0.9°C)	31st Warmest	Warmest to Date	1992, 2016
	Ties: 1991, 2017
Jun 1899–May 1900 12-Month	42.4°F (5.8°C)	41.1°F (5.1°C)	1.3°F (0.7°C)	94th Coolest	Coolest since: 1899	1917
	42.4°F (5.8°C)	41.1°F (5.1°C)	1.3°F (0.7°C)	34th Warmest	Warmest to Date	2016
	Ties: 1921, 1940, 1954, 1963, 2002
Dec 1898–May 1900 18-Month	36.1°F (2.3°C)	37.4°F (3.0°C)	-1.3°F (-0.7°C)	23rd Coolest	Coolest since: 1899	1917
	36.1°F (2.3°C)	37.4°F (3.0°C)	-1.3°F (-0.7°C)	104th Warmest	Warmest since: 1898	2016
	Ties: 1928, 1965
Jun 1898–May 1900 24-Month	39.7°F (4.3°C)	41.1°F (5.1°C)	-1.4°F (-0.8°C)	14th Coolest	Coolest since: 1899	1917
	39.7°F (4.3°C)	41.1°F (5.1°C)	-1.4°F (-0.8°C)	113th Warmest	Warmest since: 1898	2016
	Ties: 1966
Jun 1897–May 1900 36-Month	39.9°F (4.4°C)	41.1°F (5.1°C)	-1.2°F (-0.7°C)	12th Coolest	Coolest since: 1899	1918
	39.9°F (4.4°C)	41.1°F (5.1°C)	-1.2°F (-0.7°C)	114th Warmest	Warmest to Date	2017
	Ties: 1979
Jun 1896–May 1900 48-Month	39.8°F (4.3°C)	41.1°F (5.1°C)	-1.3°F (-0.8°C)	8th Coolest	Coolest since: 1899	1899, 1952
	39.8°F (4.3°C)	41.1°F (5.1°C)	-1.3°F (-0.8°C)	117th Warmest	Warmest to Date	2016
	Ties: 1920, 1930
Jun 1895–May 1900 60-Month	39.7°F (4.3°C)	41.1°F (5.1°C)	-1.4°F (-0.8°C)	5th Coolest	Coolest to Date	1952
	39.7°F (4.3°C)	41.1°F (5.1°C)	-1.4°F (-0.8°C)	119th Warmest	Warmest to Date	2016
	Ties: 1951

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on June 2, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings