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 1959

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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 1959 1-Month	46.2°F (7.9°C)	50.2°F (10.1°C)	-4.0°F (-2.2°C)	7th Coolest	Coolest since: 1927	1907, 1927
May 1959 1-Month	46.2°F (7.9°C)	50.2°F (10.1°C)	-4.0°F (-2.2°C)	122nd Warmest	Warmest since: 1958	1934
Apr–May 1959 2-Month	43.1°F (6.2°C)	45.5°F (7.5°C)	-2.4°F (-1.3°C)	21st Coolest	Coolest since: 1953	1975
	43.1°F (6.2°C)	45.5°F (7.5°C)	-2.4°F (-1.3°C)	108th Warmest	Warmest since: 1958	1934
	Ties: 1979
Mar–May 1959 3-Month	39.7°F (4.3°C)	40.1°F (4.5°C)	-0.4°F (-0.2°C)	52nd Coolest	Coolest since: 1956	1899
	39.7°F (4.3°C)	40.1°F (4.5°C)	-0.4°F (-0.2°C)	77th Warmest	Warmest since: 1958	1910
	Ties: 1902, 1916, 1921, 1933
Feb–May 1959 4-Month	33.2°F (0.7°C)	35.4°F (1.9°C)	-2.2°F (-1.2°C)	24th Coolest	Coolest since: 1955	1899
Feb–May 1959 4-Month	33.2°F (0.7°C)	35.4°F (1.9°C)	-2.2°F (-1.2°C)	105th Warmest	Warmest since: 1958	1992
Jan–May 1959 5-Month	29.8°F (-1.2°C)	31.7°F (-0.2°C)	-1.9°F (-1.0°C)	31st Coolest	Coolest since: 1957	1899
	29.8°F (-1.2°C)	31.7°F (-0.2°C)	-1.9°F (-1.0°C)	98th Warmest	Warmest since: 1958	1992
	Ties: 2011
Dec 1958–May 1959 6-Month	28.7°F (-1.8°C)	29.9°F (-1.2°C)	-1.2°F (-0.6°C)	40th Coolest	Coolest since: 1957	1917
	28.7°F (-1.8°C)	29.9°F (-1.2°C)	-1.2°F (-0.6°C)	88th Warmest	Warmest since: 1958	1992
	Ties: 1911, 1993
Nov 1958–May 1959 7-Month	28.7°F (-1.8°C)	29.8°F (-1.2°C)	-1.1°F (-0.6°C)	39th Coolest	Coolest since: 1957	1899
	28.7°F (-1.8°C)	29.8°F (-1.2°C)	-1.1°F (-0.6°C)	89th Warmest	Warmest since: 1958	1992
	Ties: 1933, 1957
Oct 1958–May 1959 8-Month	30.8°F (-0.7°C)	31.5°F (-0.3°C)	-0.7°F (-0.4°C)	45th Coolest	Coolest since: 1957	1899
	30.8°F (-0.7°C)	31.5°F (-0.3°C)	-0.7°F (-0.4°C)	83rd Warmest	Warmest since: 1958	1934, 2000
	Ties: 1932, 1993
Sep 1958–May 1959 9-Month	33.5°F (0.8°C)	34.0°F (1.1°C)	-0.5°F (-0.3°C)	51st Coolest	Coolest since: 1957	1899
	33.5°F (0.8°C)	34.0°F (1.1°C)	-0.5°F (-0.3°C)	77th Warmest	Warmest since: 1958	2016
	Ties: 1932
Aug 1958–May 1959 10-Month	36.8°F (2.7°C)	37.0°F (2.8°C)	-0.2°F (-0.1°C)	53rd Coolest	Coolest since: 1957	1917
	36.8°F (2.7°C)	37.0°F (2.8°C)	-0.2°F (-0.1°C)	75th Warmest	Warmest since: 1958	1992, 2016
	Ties: 1932, 1989
Jul 1958–May 1959 11-Month	39.1°F (3.9°C)	39.6°F (4.2°C)	-0.5°F (-0.3°C)	48th Coolest	Coolest since: 1957	1917
	39.1°F (3.9°C)	39.6°F (4.2°C)	-0.5°F (-0.3°C)	80th Warmest	Warmest since: 1958	1992, 2016
	Ties: 1923, 1986
Jun 1958–May 1959 12-Month	40.6°F (4.8°C)	41.1°F (5.1°C)	-0.5°F (-0.3°C)	42nd Coolest	Coolest since: 1956	1917
	40.6°F (4.8°C)	41.1°F (5.1°C)	-0.5°F (-0.3°C)	86th Warmest	Warmest since: 1958	2016
	Ties: 1986, 1994
Dec 1957–May 1959 18-Month	38.3°F (3.5°C)	37.4°F (3.0°C)	0.9°F (0.5°C)	85th Coolest	Coolest since: 1958	1917
	38.3°F (3.5°C)	37.4°F (3.0°C)	0.9°F (0.5°C)	42nd Warmest	Warmest since: 1954	2016
	Ties: 1902, 1962, 1982, 2003
Jun 1957–May 1959 24-Month	41.8°F (5.4°C)	41.1°F (5.1°C)	0.7°F (0.3°C)	79th Coolest	Coolest since: 1957	1917
Jun 1957–May 1959 24-Month	41.8°F (5.4°C)	41.1°F (5.1°C)	0.7°F (0.3°C)	48th Warmest	Warmest since: 1958	2016
Jun 1956–May 1959 36-Month	41.4°F (5.2°C)	41.1°F (5.1°C)	0.3°F (0.1°C)	73rd Coolest	Coolest since: 1958	1918
	41.4°F (5.2°C)	41.1°F (5.1°C)	0.3°F (0.1°C)	53rd Warmest	Warmest since: 1955	2017
	Ties: 1965, 1976, 1978, 1981, 1984, 2020
Jun 1955–May 1959 48-Month	40.9°F (4.9°C)	41.1°F (5.1°C)	-0.2°F (-0.2°C)	44th Coolest	Coolest since: 1958	1899, 1952
	40.9°F (4.9°C)	41.1°F (5.1°C)	-0.2°F (-0.2°C)	81st Warmest	Warmest since: 1958	2016
	Ties: 1908, 1911, 1938, 1958, 1967, 1997
Jun 1954–May 1959 60-Month	40.8°F (4.9°C)	41.1°F (5.1°C)	-0.3°F (-0.2°C)	41st Coolest	Coolest since: 1956	1952
	40.8°F (4.9°C)	41.1°F (5.1°C)	-0.3°F (-0.2°C)	83rd Warmest	Warmest since: 1958	2016
	Ties: 1922, 1923, 1960, 1971, 1974, 1982

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on June 7, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings