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, April 1989

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Record Coolest
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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2023)	Warmest/Coolest Since	Record
April 1989 1-Month	41.0°F (5.0°C)	40.7°F (4.8°C)	0.3°F (0.2°C)	72nd Coolest	Coolest since: 1986	1975
	41.0°F (5.0°C)	40.7°F (4.8°C)	0.3°F (0.2°C)	58th Warmest	Warmest since: 1988	1915
	Ties: 2014
Mar–Apr 1989 2-Month	33.9°F (1.1°C)	35.1°F (1.7°C)	-1.2°F (-0.6°C)	46th Coolest	Coolest since: 1982	1899
	33.9°F (1.1°C)	35.1°F (1.7°C)	-1.2°F (-0.6°C)	84th Warmest	Warmest since: 1988	1910
	Ties: 1953, 1997
Feb–Apr 1989 3-Month	25.7°F (-3.5°C)	30.5°F (-0.8°C)	-4.8°F (-2.7°C)	9th Coolest	Coolest since: 1975	1899
	25.7°F (-3.5°C)	30.5°F (-0.8°C)	-4.8°F (-2.7°C)	121st Warmest	Warmest since: 1988	2016
	Ties: 1897, 1955
Jan–Apr 1989 4-Month	24.6°F (-4.1°C)	27.0°F (-2.8°C)	-2.4°F (-1.3°C)	25th Coolest	Coolest since: 1982	1899
	24.6°F (-4.1°C)	27.0°F (-2.8°C)	-2.4°F (-1.3°C)	105th Warmest	Warmest since: 1988	1992
	Ties: 1895
Dec 1988–Apr 1989 5-Month	24.3°F (-4.3°C)	25.8°F (-3.4°C)	-1.5°F (-0.9°C)	37th Coolest	Coolest since: 1985	1917
	24.3°F (-4.3°C)	25.8°F (-3.4°C)	-1.5°F (-0.9°C)	92nd Warmest	Warmest since: 1988	1992
	Ties: 1904
Nov 1988–Apr 1989 6-Month	25.4°F (-3.7°C)	26.4°F (-3.1°C)	-1.0°F (-0.6°C)	43rd Coolest	Coolest since: 1985	1979
	25.4°F (-3.7°C)	26.4°F (-3.1°C)	-1.0°F (-0.6°C)	86th Warmest	Warmest since: 1988	1992
	Ties: 1933, 1947, 1996, 2019
Oct 1988–Apr 1989 7-Month	28.4°F (-2.0°C)	28.8°F (-1.8°C)	-0.4°F (-0.2°C)	52nd Coolest	Coolest since: 1985	1899, 1917
	28.4°F (-2.0°C)	28.8°F (-1.8°C)	-0.4°F (-0.2°C)	77th Warmest	Warmest since: 1988	2000, 2016
	Ties: 1918
Sep 1988–Apr 1989 8-Month	31.6°F (-0.2°C)	31.9°F (-0.1°C)	-0.3°F (-0.1°C)	54th Coolest	Coolest since: 1986	1917
Sep 1988–Apr 1989 8-Month	31.6°F (-0.2°C)	31.9°F (-0.1°C)	-0.3°F (-0.1°C)	75th Warmest	Warmest since: 1988	2016
Aug 1988–Apr 1989 9-Month	35.3°F (1.8°C)	35.5°F (1.9°C)	-0.2°F (-0.1°C)	53rd Coolest	Coolest since: 1986	1917
	35.3°F (1.8°C)	35.5°F (1.9°C)	-0.2°F (-0.1°C)	76th Warmest	Warmest since: 1988	2016
	Ties: 1901, 1918, 1955
Jul 1988–Apr 1989 10-Month	38.6°F (3.7°C)	38.5°F (3.6°C)	0.1°F (0.1°C)	56th Coolest	Coolest since: 1986	1917
	38.6°F (3.7°C)	38.5°F (3.6°C)	0.1°F (0.1°C)	73rd Warmest	Warmest since: 1988	2016
	Ties: 1918, 1925, 1955, 2018
Jun 1988–Apr 1989 11-Month	41.2°F (5.1°C)	40.3°F (4.6°C)	0.9°F (0.5°C)	82nd Coolest	Coolest since: 1986	1917
	41.2°F (5.1°C)	40.3°F (4.6°C)	0.9°F (0.5°C)	47th Warmest	Warmest since: 1988	2016
	Ties: 1944, 2020
May 1988–Apr 1989 12-Month	42.4°F (5.8°C)	41.1°F (5.1°C)	1.3°F (0.7°C)	94th Coolest	Coolest since: 1986	1917
	42.4°F (5.8°C)	41.1°F (5.1°C)	1.3°F (0.7°C)	35th Warmest	Warmest since: 1988	2016
	Ties: 1935, 1938, 1939, 1980
Nov 1987–Apr 1989 18-Month	38.2°F (3.4°C)	36.2°F (2.3°C)	2.0°F (1.1°C)	108th Coolest	Coolest since: 1987	1917
	38.2°F (3.4°C)	36.2°F (2.3°C)	2.0°F (1.1°C)	20th Warmest	Warmest since: 1988	2016
	Ties: 2005
May 1987–Apr 1989 24-Month	42.8°F (6.0°C)	41.1°F (5.1°C)	1.7°F (0.9°C)	109th Coolest	Coolest since: 1987	1917
	42.8°F (6.0°C)	41.1°F (5.1°C)	1.7°F (0.9°C)	19th Warmest	Warmest since: 1988	2016
	Ties: 1991
May 1986–Apr 1989 36-Month	43.1°F (6.2°C)	41.1°F (5.1°C)	2.0°F (1.1°C)	117th Coolest	Coolest since: 1988	1918
	43.1°F (6.2°C)	41.1°F (5.1°C)	2.0°F (1.1°C)	10th Warmest	Warmest to Date	2017
	Ties: 2014
May 1985–Apr 1989 48-Month	42.5°F (5.8°C)	41.1°F (5.1°C)	1.4°F (0.7°C)	104th Coolest	Coolest since: 1988	1952
	42.5°F (5.8°C)	41.1°F (5.1°C)	1.4°F (0.7°C)	22nd Warmest	Warmest since: 1942	2007, 2016, 2017
	Ties: 1934, 2010, 2023
May 1984–Apr 1989 60-Month	42.0°F (5.6°C)	41.1°F (5.1°C)	0.9°F (0.5°C)	88th Coolest	Coolest since: 1988	1952
	42.0°F (5.6°C)	41.1°F (5.1°C)	0.9°F (0.5°C)	37th Warmest	Warmest since: 1984	2016
	Ties: 1944, 2011

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on May 31, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings