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 1902

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
September 1902
1-Month		51.3°F
(10.7°C)		53.8°F
(12.1°C)		-2.5°F
(-1.4°C)		22nd Coolest
Coolest since:
1965
107th Warmest
Warmest since:
1998
Ties: 1945
Aug–Sep 1902
2-Month		56.8°F
(13.8°C)		59.0°F
(15.0°C)		-2.2°F
(-1.2°C)		16th Coolest
Coolest since:
1965
113th Warmest
Warmest since:
2022
Ties: 1977
Jul–Sep 1902
3-Month		58.4°F
(14.7°C)		61.2°F
(16.2°C)		-2.8°F
(-1.5°C)		9th Coolest
Coolest to Date
1912
120th Warmest
Warmest since:
2022
Jun–Sep 1902
4-Month		57.5°F
(14.2°C)		60.5°F
(15.8°C)		-3.0°F
(-1.6°C)		6th Coolest
Coolest to Date
1993
123rd Warmest
Warmest since:
2021
May–Sep 1902
5-Month		56.3°F
(13.5°C)		58.4°F
(14.7°C)		-2.1°F
(-1.2°C)		10th Coolest
Coolest since:
1907
119th Warmest
Warmest since:
1936
Ties: 1903, 1916
Apr–Sep 1902
6-Month		53.4°F
(11.9°C)		55.5°F
(13.1°C)		-2.1°F
(-1.2°C)		10th Coolest
Coolest since:
1907
119th Warmest
Warmest since:
1936
Mar–Sep 1902
7-Month		49.9°F
(9.9°C)		51.7°F
(10.9°C)		-1.8°F
(-1.0°C)		12th Coolest
Coolest since:
1965
117th Warmest
Warmest since:
2012
Ties: 1924, 1927
Feb–Sep 1902
8-Month		46.3°F
(7.9°C)		47.9°F
(8.8°C)		-1.6°F
(-0.9°C)		19th Coolest
Coolest since:
1899
110th Warmest
Warmest since:
2012, 2016
Jan–Sep 1902
9-Month		43.3°F
(6.3°C)		44.5°F
(6.9°C)		-1.2°F
(-0.6°C)		31st Coolest
Coolest since:
1899
98th Warmest
Warmest since:
2012
Ties: 1962
Dec 1901–Sep 1902
10-Month		41.3°F
(5.2°C)		42.1°F
(5.6°C)		-0.8°F
(-0.4°C)		38th Coolest
Coolest since:
1950
90th Warmest
Warmest since:
2012
Ties: 1924, 1996, 2019
Nov 1901–Sep 1902
11-Month		40.5°F
(4.7°C)		41.0°F
(5.0°C)		-0.5°F
(-0.3°C)		48th Coolest
Coolest since:
1899
80th Warmest
Warmest since:
2012
Oct 1901–Sep 1902
12-Month		41.1°F
(5.1°C)		41.2°F
(5.1°C)		-0.1°F
(0.0°C)		56th Coolest
Coolest since:
1899
72nd Warmest
Warmest since:
2012
Ties: 1945, 1968, 1970, 2018
Apr 1901–Sep 1902
18-Month		45.8°F
(7.7°C)		45.9°F
(7.7°C)		-0.1°F
(0.0°C)		53rd Coolest
Coolest since:
1917
75th Warmest
Warmest since:
2016
Ties: 1898, 1923, 1968, 2010
Oct 1900–Sep 1902
24-Month		41.2°F
(5.1°C)		41.1°F
(5.1°C)		0.1°F
(0.0°C)		60th Coolest
Coolest since:
1917
67th Warmest
Warmest since:
2016
Ties: 1909, 1915, 1925, 1983
Oct 1899–Sep 1902
36-Month		41.7°F
(5.4°C)		41.1°F
(5.1°C)		0.6°F
(0.3°C)		85th Coolest
Coolest since:
1951
41st Warmest
Warmest to Date
2017
Ties: 1961, 1977, 1996
Oct 1898–Sep 1902
48-Month		40.5°F
(4.7°C)		41.1°F
(5.1°C)		-0.6°F
(-0.4°C)		23rd Coolest
Coolest since:
1952
102nd Warmest
Warmest to Date
2007, 2017, 2018
Ties: 1905, 1909, 1910, 1971
Oct 1897–Sep 1902
60-Month		40.4°F
(4.7°C)		41.1°F
(5.1°C)		-0.7°F
(-0.4°C)		20th Coolest
Coolest since:
1952
104th Warmest
Warmest to Date
2016
Ties: 1912, 1921, 1969, 1973

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