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, September 1980

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
September 1980
1-Month 		54.7°F
(12.6°C)		 53.8°F
(12.1°C)		 0.9°F
(0.5°C)		 71st Coolest
Coolest since:
 1965
58th Warmest
Warmest since:
 1998
Ties: 1930, 1943
Aug–Sep 1980
2-Month 		57.3°F
(14.1°C)		 59.0°F
(15.0°C)		 -1.7°F
(-0.9°C)		 25th Coolest
Coolest since:
 1965
104th Warmest
Warmest since:
 2022
Ties: 1968
Jul–Sep 1980
3-Month 		60.2°F
(15.7°C)		 61.2°F
(16.2°C)		 -1.0°F
(-0.5°C)		 30th Coolest
Coolest since:
 1912
99th Warmest
Warmest since:
 2022
Ties: 1916
Jun–Sep 1980
4-Month 		59.9°F
(15.5°C)		 60.5°F
(15.8°C)		 -0.6°F
(-0.3°C)		 37th Coolest
Coolest since:
 1993
92nd Warmest
Warmest since:
 2021
Ties: 1978, 2010
May–Sep 1980
5-Month 		58.6°F
(14.8°C)		 58.4°F
(14.7°C)		 0.2°F
(0.1°C)		 62nd Coolest
Coolest since:
 1907
67th Warmest
Warmest since:
 1936
Ties: 1914, 1920, 1971, 1983
Apr–Sep 1980
6-Month 		56.5°F
(13.6°C)		 55.5°F
(13.1°C)		 1.0°F
(0.5°C)		 95th Coolest
Coolest since:
 1907
34th Warmest
Warmest since:
 1936
Ties: 1963, 1976, 1991
Mar–Sep 1980
7-Month 		52.5°F
(11.4°C)		 51.7°F
(10.9°C)		 0.8°F
(0.5°C)		 84th Coolest
Coolest since:
 1965
45th Warmest
Warmest since:
 2012
Feb–Sep 1980
8-Month 		48.9°F
(9.4°C)		 47.9°F
(8.8°C)		 1.0°F
(0.6°C)		 87th Coolest
Coolest since:
 1899
42nd Warmest
Warmest since:
 2012, 2016
Ties: 1921, 1986
Jan–Sep 1980
9-Month 		44.9°F
(7.2°C)		 44.5°F
(6.9°C)		 0.4°F
(0.3°C)		 71st Coolest
Coolest since:
 1899
58th Warmest
Warmest since:
 2012
Ties: 1906
Dec 1979–Sep 1980
10-Month 		43.2°F
(6.2°C)		 42.1°F
(5.6°C)		 1.1°F
(0.6°C)		 85th Coolest
Coolest since:
 1950
43rd Warmest
Warmest since:
 2012
Nov 1979–Sep 1980
11-Month 		41.7°F
(5.4°C)		 41.0°F
(5.0°C)		 0.7°F
(0.4°C)		 83rd Coolest
Coolest since:
 1899
45th Warmest
Warmest since:
 2012
Ties: 1995, 2002, 2004
Oct 1979–Sep 1980
12-Month 		42.1°F
(5.6°C)		 41.2°F
(5.1°C)		 0.9°F
(0.5°C)		 85th Coolest
Coolest since:
 1899
43rd Warmest
Warmest since:
 2012
Apr 1979–Sep 1980
18-Month 		46.6°F
(8.1°C)		 45.9°F
(7.7°C)		 0.7°F
(0.4°C)		 84th Coolest
Coolest since:
 1917
44th Warmest
Warmest since:
 2016
Ties: 1901
Oct 1978–Sep 1980
24-Month 		40.2°F
(4.6°C)		 41.1°F
(5.1°C)		 -0.9°F
(-0.5°C)		 24th Coolest
Coolest since:
 1917
103rd Warmest
Warmest since:
 2016
Ties: 1937, 1956, 1969, 1970
Oct 1977–Sep 1980
36-Month 		40.0°F
(4.4°C)		 41.1°F
(5.1°C)		 -1.1°F
(-0.7°C)		 12th Coolest
Coolest since:
 1951
114th Warmest
Warmest since:
 2017
Ties: 1898
Oct 1976–Sep 1980
48-Month 		40.6°F
(4.8°C)		 41.1°F
(5.1°C)		 -0.5°F
(-0.3°C)		 28th Coolest
Coolest since:
 1952
97th Warmest
Warmest since:
 2007, 2017, 2018
Ties: 1906, 1925, 1973
Oct 1975–Sep 1980
60-Month 		41.0°F
(5.0°C)		 41.1°F
(5.1°C)		 -0.1°F
(-0.1°C)		 50th Coolest
Coolest since:
 1952
74th Warmest
Warmest since:
 2016
Ties: 1925, 1926, 1927, 1932, 1966, 1970, 1976, 1986

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