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, July 1991

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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
July 1991 1-Month	66.3°F (19.1°C)	65.7°F (18.7°C)	0.6°F (0.4°C)	72nd Coolest	Coolest since: 1990	1993
	66.3°F (19.1°C)	65.7°F (18.7°C)	0.6°F (0.4°C)	57th Warmest	Warmest since: 1989	1936
	Ties: 1921, 1967
Jun–Jul 1991 2-Month	62.3°F (16.8°C)	62.0°F (16.7°C)	0.3°F (0.1°C)	67th Coolest	Coolest since: 1990	1915
	62.3°F (16.8°C)	62.0°F (16.7°C)	0.3°F (0.1°C)	62nd Warmest	Warmest since: 1990	2021
	Ties: 1946, 1990
May–Jul 1991 3-Month	58.1°F (14.5°C)	58.1°F (14.5°C)	0.0°F (0.0°C)	66th Coolest	Coolest since: 1990	1915
	58.1°F (14.5°C)	58.1°F (14.5°C)	0.0°F (0.0°C)	63rd Warmest	Warmest since: 1989	1936
	Ties: 1928, 1992, 2005
Apr–Jul 1991 4-Month	53.7°F (12.1°C)	53.7°F (12.1°C)	0.0°F (0.0°C)	62nd Coolest	Coolest since: 1983	1907
	53.7°F (12.1°C)	53.7°F (12.1°C)	0.0°F (0.0°C)	67th Warmest	Warmest since: 1990	1988
	Ties: 1906, 1918, 1947, 1948, 1962, 2004
Mar–Jul 1991 5-Month	49.4°F (9.7°C)	48.9°F (9.4°C)	0.5°F (0.3°C)	80th Coolest	Coolest since: 1989	1899
	49.4°F (9.7°C)	48.9°F (9.4°C)	0.5°F (0.3°C)	49th Warmest	Warmest since: 1990	1910
	Ties: 1973, 1984
Feb–Jul 1991 6-Month	46.8°F (8.2°C)	44.3°F (6.8°C)	2.5°F (1.4°C)	112th Coolest	Coolest since: 1990	1899
	46.8°F (8.2°C)	44.3°F (6.8°C)	2.5°F (1.4°C)	17th Warmest	Warmest since: 1988	2016
	Ties: 1910, 2005
Jan–Jul 1991 7-Month	42.4°F (5.8°C)	40.3°F (4.6°C)	2.1°F (1.2°C)	97th Coolest	Coolest since: 1989	1899
	42.4°F (5.8°C)	40.3°F (4.6°C)	2.1°F (1.2°C)	32nd Warmest	Warmest since: 1990	1934
	Ties: 1919
Dec 1990–Jul 1991 8-Month	38.7°F (3.7°C)	37.9°F (3.3°C)	0.8°F (0.4°C)	80th Coolest	Coolest since: 1989	1899
	38.7°F (3.7°C)	37.9°F (3.3°C)	0.8°F (0.4°C)	48th Warmest	Warmest since: 1990	1992
	Ties: 1925, 2022
Nov 1990–Jul 1991 9-Month	38.1°F (3.4°C)	37.0°F (2.8°C)	1.1°F (0.6°C)	89th Coolest	Coolest since: 1989	1899
	38.1°F (3.4°C)	37.0°F (2.8°C)	1.1°F (0.6°C)	39th Warmest	Warmest since: 1990	1934
	Ties: 1908, 1953
Oct 1990–Jul 1991 10-Month	38.5°F (3.6°C)	37.6°F (3.1°C)	0.9°F (0.5°C)	83rd Coolest	Coolest since: 1989	1899
	38.5°F (3.6°C)	37.6°F (3.1°C)	0.9°F (0.5°C)	45th Warmest	Warmest since: 1990	2016
	Ties: 1910, 2002, 2020
Sep 1990–Jul 1991 11-Month	40.5°F (4.7°C)	39.1°F (3.9°C)	1.4°F (0.8°C)	94th Coolest	Coolest since: 1989	1899
	40.5°F (4.7°C)	39.1°F (3.9°C)	1.4°F (0.8°C)	34th Warmest	Warmest since: 1990	2016
	Ties: 1958
Aug 1990–Jul 1991 12-Month	42.7°F (5.9°C)	41.1°F (5.1°C)	1.6°F (0.8°C)	97th Coolest	Coolest since: 1990	1899, 1917
	42.7°F (5.9°C)	41.1°F (5.1°C)	1.6°F (0.8°C)	31st Warmest	Warmest since: 1990	2016
	Ties: 1990, 2002
Feb 1990–Jul 1991 18-Month	43.6°F (6.4°C)	42.2°F (5.7°C)	1.4°F (0.7°C)	99th Coolest	Coolest since: 1990	1899
	43.6°F (6.4°C)	42.2°F (5.7°C)	1.4°F (0.7°C)	29th Warmest	Warmest since: 1989	2016
	Ties: 2018
Aug 1989–Jul 1991 24-Month	42.7°F (5.9°C)	41.1°F (5.1°C)	1.6°F (0.8°C)	104th Coolest	Coolest since: 1990	1917
	42.7°F (5.9°C)	41.1°F (5.1°C)	1.6°F (0.8°C)	23rd Warmest	Warmest since: 1989	2016
	Ties: 1989, 2003, 2012
Aug 1988–Jul 1991 36-Month	42.2°F (5.7°C)	41.1°F (5.1°C)	1.1°F (0.6°C)	97th Coolest	Coolest since: 1987	1899, 1952
	42.2°F (5.7°C)	41.1°F (5.1°C)	1.1°F (0.6°C)	29th Warmest	Warmest since: 1990	2017
	Ties: 2012
Aug 1987–Jul 1991 48-Month	42.7°F (5.9°C)	41.1°F (5.1°C)	1.6°F (0.8°C)	108th Coolest	Coolest since: 1989	1952
	42.7°F (5.9°C)	41.1°F (5.1°C)	1.6°F (0.8°C)	17th Warmest	Warmest since: 1990	2007, 2017, 2018
	Ties: 1934
Aug 1986–Jul 1991 60-Month	42.9°F (6.1°C)	41.1°F (5.1°C)	1.8°F (1.0°C)	113th Coolest	Coolest since: 1990	1952
	42.9°F (6.1°C)	41.1°F (5.1°C)	1.8°F (1.0°C)	11th Warmest	Warmest to Date	2016
	Ties: 2004, 2019

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on June 4, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings