Statewide Rankings

Statewide Data Info
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 1971

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
May 1971
1-Month		50.8°F
(10.4°C)		50.2°F
(10.1°C)		0.6°F
(0.3°C)		80th Coolest
Coolest since:
1907, 1927
49th Warmest
Warmest since:
1934
Ties: 1910, 1947, 1986
Apr–May 1971
2-Month		45.7°F
(7.6°C)		45.5°F
(7.5°C)		0.2°F
(0.1°C)		72nd Coolest
Coolest since:
1975
57th Warmest
Warmest since:
1934
Ties: 1904, 1908, 1986
Mar–May 1971
3-Month		39.9°F
(4.4°C)		40.1°F
(4.5°C)		-0.2°F
(-0.1°C)		60th Coolest
Coolest since:
1899
69th Warmest
Warmest since:
1910
Ties: 1952
Feb–May 1971
4-Month		35.6°F
(2.0°C)		35.4°F
(1.9°C)		0.2°F
(0.1°C)		70th Coolest
Coolest since:
1899
59th Warmest
Warmest since:
1992
Ties: 1964
Jan–May 1971
5-Month		31.3°F
(-0.4°C)		31.7°F
(-0.2°C)		-0.4°F
(-0.2°C)		57th Coolest
Coolest since:
1899
72nd Warmest
Warmest since:
1992
Dec 1970–May 1971
6-Month		29.1°F
(-1.6°C)		29.9°F
(-1.2°C)		-0.8°F
(-0.4°C)		47th Coolest
Coolest since:
1917
81st Warmest
Warmest since:
1992
Nov 1970–May 1971
7-Month		28.9°F
(-1.7°C)		29.8°F
(-1.2°C)		-0.9°F
(-0.5°C)		43rd Coolest
Coolest since:
1899
85th Warmest
Warmest since:
1992
Ties: 1932, 1989, 1993
Oct 1970–May 1971
8-Month		30.3°F
(-0.9°C)		31.5°F
(-0.3°C)		-1.2°F
(-0.6°C)		35th Coolest
Coolest since:
1899
93rd Warmest
Warmest since:
1934, 2000
Ties: 1927, 1943, 1985, 2011
Sep 1970–May 1971
9-Month		32.6°F
(0.3°C)		34.0°F
(1.1°C)		-1.4°F
(-0.8°C)		30th Coolest
Coolest since:
1899
98th Warmest
Warmest since:
2016
Ties: 1904, 1947, 1982
Aug 1970–May 1971
10-Month		36.0°F
(2.2°C)		37.0°F
(2.8°C)		-1.0°F
(-0.6°C)		37th Coolest
Coolest since:
1917
91st Warmest
Warmest since:
1992, 2016
Ties: 1943, 1982, 2011
Jul 1970–May 1971
11-Month		38.8°F
(3.8°C)		39.6°F
(4.2°C)		-0.8°F
(-0.4°C)		42nd Coolest
Coolest since:
1917
86th Warmest
Warmest since:
1992, 2016
Ties: 1957, 1973, 1985
Jun 1970–May 1971
12-Month		40.7°F
(4.8°C)		41.1°F
(5.1°C)		-0.4°F
(-0.3°C)		45th Coolest
Coolest since:
1917
83rd Warmest
Warmest since:
2016
Ties: 1911, 1937, 1955, 1957, 1962, 1973
Dec 1969–May 1971
18-Month		37.0°F
(2.8°C)		37.4°F
(3.0°C)		-0.4°F
(-0.2°C)		48th Coolest
Coolest since:
1917
79th Warmest
Warmest since:
2016
Ties: 1914, 1924
Jun 1969–May 1971
24-Month		40.8°F
(4.9°C)		41.1°F
(5.1°C)		-0.3°F
(-0.2°C)		46th Coolest
Coolest since:
1917
81st Warmest
Warmest since:
2016
Ties: 1921, 1922
Jun 1968–May 1971
36-Month		40.1°F
(4.5°C)		41.1°F
(5.1°C)		-1.0°F
(-0.6°C)		19th Coolest
Coolest since:
1918
107th Warmest
Warmest since:
2017
Jun 1967–May 1971
48-Month		40.6°F
(4.8°C)		41.1°F
(5.1°C)		-0.5°F
(-0.3°C)		28th Coolest
Coolest since:
1899, 1952
97th Warmest
Warmest since:
2016
Ties: 1954, 1973
Jun 1966–May 1971
60-Month		40.8°F
(4.9°C)		41.1°F
(5.1°C)		-0.3°F
(-0.2°C)		41st Coolest
Coolest since:
1952
83rd Warmest
Warmest since:
2016
Ties: 1922, 1923, 1959, 1960, 1974, 1982

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