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 1990

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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 1990 1-Month	65.6°F (18.7°C)	65.7°F (18.7°C)	-0.1°F (0.0°C)	52nd Coolest	Coolest since: 1987	1993
	65.6°F (18.7°C)	65.7°F (18.7°C)	-0.1°F (0.0°C)	77th Warmest	Warmest since: 1989	1936
	Ties: 1943, 1963, 2020
Jun–Jul 1990 2-Month	62.3°F (16.8°C)	62.0°F (16.7°C)	0.3°F (0.1°C)	67th Coolest	Coolest since: 1983	1915
	62.3°F (16.8°C)	62.0°F (16.7°C)	0.3°F (0.1°C)	62nd Warmest	Warmest since: 1989	2021
	Ties: 1946, 1991
May–Jul 1990 3-Month	57.8°F (14.3°C)	58.1°F (14.5°C)	-0.3°F (-0.2°C)	56th Coolest	Coolest since: 1983	1915
	57.8°F (14.3°C)	58.1°F (14.5°C)	-0.3°F (-0.2°C)	73rd Warmest	Warmest since: 1989	1936
	Ties: 1896
Apr–Jul 1990 4-Month	53.9°F (12.2°C)	53.7°F (12.1°C)	0.2°F (0.1°C)	73rd Coolest	Coolest since: 1984	1907
	53.9°F (12.2°C)	53.7°F (12.1°C)	0.2°F (0.1°C)	56th Warmest	Warmest since: 1989	1988
	Ties: 1964
Mar–Jul 1990 5-Month	49.8°F (9.9°C)	48.9°F (9.4°C)	0.9°F (0.5°C)	87th Coolest	Coolest since: 1989	1899
	49.8°F (9.9°C)	48.9°F (9.4°C)	0.9°F (0.5°C)	42nd Warmest	Warmest since: 1988	1910
	Ties: 1998
Feb–Jul 1990 6-Month	45.5°F (7.5°C)	44.3°F (6.8°C)	1.2°F (0.7°C)	89th Coolest	Coolest since: 1989	1899
	45.5°F (7.5°C)	44.3°F (6.8°C)	1.2°F (0.7°C)	40th Warmest	Warmest since: 1988	2016
	Ties: 2013
Jan–Jul 1990 7-Month	42.6°F (5.9°C)	40.3°F (4.6°C)	2.3°F (1.3°C)	100th Coolest	Coolest since: 1989	1899
	42.6°F (5.9°C)	40.3°F (4.6°C)	2.3°F (1.3°C)	29th Warmest	Warmest since: 1988	1934
	Ties: 1998
Dec 1989–Jul 1990 8-Month	39.8°F (4.3°C)	37.9°F (3.3°C)	1.9°F (1.0°C)	97th Coolest	Coolest since: 1989	1899
	39.8°F (4.3°C)	37.9°F (3.3°C)	1.9°F (1.0°C)	31st Warmest	Warmest since: 1988	1992
	Ties: 1999, 2004
Nov 1989–Jul 1990 9-Month	39.1°F (3.9°C)	37.0°F (2.8°C)	2.1°F (1.1°C)	106th Coolest	Coolest since: 1989	1899
	39.1°F (3.9°C)	37.0°F (2.8°C)	2.1°F (1.1°C)	22nd Warmest	Warmest since: 1988	1934
	Ties: 1940, 1958, 1999
Oct 1989–Jul 1990 10-Month	39.5°F (4.2°C)	37.6°F (3.1°C)	1.9°F (1.1°C)	104th Coolest	Coolest since: 1989	1899
	39.5°F (4.2°C)	37.6°F (3.1°C)	1.9°F (1.1°C)	24th Warmest	Warmest since: 1988	2016
	Ties: 1940, 1963, 1977
Sep 1989–Jul 1990 11-Month	40.8°F (4.9°C)	39.1°F (3.9°C)	1.7°F (1.0°C)	100th Coolest	Coolest since: 1989	1899
	40.8°F (4.9°C)	39.1°F (3.9°C)	1.7°F (1.0°C)	28th Warmest	Warmest since: 1988	2016
	Ties: 1921, 1963, 1980
Aug 1989–Jul 1990 12-Month	42.7°F (5.9°C)	41.1°F (5.1°C)	1.6°F (0.8°C)	97th Coolest	Coolest since: 1989	1899, 1917
	42.7°F (5.9°C)	41.1°F (5.1°C)	1.6°F (0.8°C)	31st Warmest	Warmest since: 1988	2016
	Ties: 1991, 2002
Feb 1989–Jul 1990 18-Month	42.6°F (5.9°C)	42.2°F (5.7°C)	0.4°F (0.2°C)	76th Coolest	Coolest since: 1986	1899
Feb 1989–Jul 1990 18-Month	42.6°F (5.9°C)	42.2°F (5.7°C)	0.4°F (0.2°C)	52nd Warmest	Warmest since: 1989	2016
Aug 1988–Jul 1990 24-Month	42.0°F (5.6°C)	41.1°F (5.1°C)	0.9°F (0.5°C)	85th Coolest	Coolest since: 1986	1917
Aug 1988–Jul 1990 24-Month	42.0°F (5.6°C)	41.1°F (5.1°C)	0.9°F (0.5°C)	42nd Warmest	Warmest since: 1989	2016
Aug 1987–Jul 1990 36-Month	42.7°F (5.9°C)	41.1°F (5.1°C)	1.6°F (0.8°C)	106th Coolest	Coolest since: 1987	1899, 1952
Aug 1987–Jul 1990 36-Month	42.7°F (5.9°C)	41.1°F (5.1°C)	1.6°F (0.8°C)	20th Warmest	Warmest since: 1989	2017
Aug 1986–Jul 1990 48-Month	43.0°F (6.1°C)	41.1°F (5.1°C)	1.9°F (1.0°C)	115th Coolest	Coolest since: 1989	1952
	43.0°F (6.1°C)	41.1°F (5.1°C)	1.9°F (1.0°C)	10th Warmest	Warmest to Date	2007, 2017, 2018
	Ties: 2000
Aug 1985–Jul 1990 60-Month	42.5°F (5.8°C)	41.1°F (5.1°C)	1.4°F (0.7°C)	106th Coolest	Coolest since: 1989	1952
	42.5°F (5.8°C)	41.1°F (5.1°C)	1.4°F (0.7°C)	18th Warmest	Warmest to Date	2016
	Ties: 2000

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