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 1923

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1923
1-Month
55.7°F
(13.2°C)
53.8°F
(12.1°C)
1.9°F
(1.1°C)
92nd Coolest
Coolest since:
1965
37th Warmest
Warmest since:
1998
Ties: 2002
Aug–Sep 1923
2-Month
59.0°F
(15.0°C)
59.0°F
(15.0°C)
0.0°F
(0.0°C)
59th Coolest
Coolest since:
1965
70th Warmest
Warmest since:
2022
Ties: 1957, 1999, 2010
Jul–Sep 1923
3-Month
62.0°F
(16.7°C)
61.2°F
(16.2°C)
0.8°F
(0.5°C)
79th Coolest
Coolest since:
1912
50th Warmest
Warmest since:
2022
Jun–Sep 1923
4-Month
61.2°F
(16.2°C)
60.5°F
(15.8°C)
0.7°F
(0.4°C)
86th Coolest
Coolest since:
1993
43rd Warmest
Warmest since:
2021
Ties: 1983, 2005
May–Sep 1923
5-Month
59.0°F
(15.0°C)
58.4°F
(14.7°C)
0.6°F
(0.3°C)
81st Coolest
Coolest since:
1907
48th Warmest
Warmest since:
1936
Ties: 1941, 1948, 1952, 1956, 1969, 1989, 2011, 2014
Apr–Sep 1923
6-Month
55.7°F
(13.2°C)
55.5°F
(13.1°C)
0.2°F
(0.1°C)
72nd Coolest
Coolest since:
1907
57th Warmest
Warmest since:
1936
Ties: 1906, 1914, 1946, 1957, 1979
Mar–Sep 1923
7-Month
51.7°F
(10.9°C)
51.7°F
(10.9°C)
0.0°F
(0.0°C)
55th Coolest
Coolest since:
1965
74th Warmest
Warmest since:
2012
Ties: 1932, 1956, 1971
Feb–Sep 1923
8-Month
47.0°F
(8.3°C)
47.9°F
(8.8°C)
-0.9°F
(-0.5°C)
31st Coolest
Coolest since:
1899
98th Warmest
Warmest since:
2012, 2016
Jan–Sep 1923
9-Month
44.3°F
(6.8°C)
44.5°F
(6.9°C)
-0.2°F
(-0.1°C)
55th Coolest
Coolest since:
1899
74th Warmest
Warmest since:
2012
Ties: 1901, 1932, 1944, 1970, 1971, 2018
Dec 1922–Sep 1923
10-Month
41.1°F
(5.1°C)
42.1°F
(5.6°C)
-1.0°F
(-0.5°C)
35th Coolest
Coolest since:
1950
93rd Warmest
Warmest since:
2012
Nov 1922–Sep 1923
11-Month
40.0°F
(4.4°C)
41.0°F
(5.0°C)
-1.0°F
(-0.6°C)
33rd Coolest
Coolest since:
1899
95th Warmest
Warmest since:
2012
Ties: 1909, 1985
Oct 1922–Sep 1923
12-Month
40.5°F
(4.7°C)
41.2°F
(5.1°C)
-0.7°F
(-0.4°C)
41st Coolest
Coolest since:
1899
87th Warmest
Warmest since:
2012
Ties: 1997
Apr 1922–Sep 1923
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, 1902, 1968, 2010
Oct 1921–Sep 1923
24-Month
40.1°F
(4.5°C)
41.1°F
(5.1°C)
-1.0°F
(-0.6°C)
21st Coolest
Coolest since:
1917
106th Warmest
Warmest since:
2016
Ties: 1903, 1972
Oct 1920–Sep 1923
36-Month
40.9°F
(4.9°C)
41.1°F
(5.1°C)
-0.2°F
(-0.2°C)
46th Coolest
Coolest since:
1951
80th Warmest
Warmest since:
2017
Ties: 1958, 1975, 1997
Oct 1919–Sep 1923
48-Month
40.2°F
(4.6°C)
41.1°F
(5.1°C)
-0.9°F
(-0.5°C)
16th Coolest
Coolest since:
1952
109th Warmest
Warmest since:
2007, 2017, 2018
Ties: 1972
Oct 1918–Sep 1923
60-Month
40.8°F
(4.9°C)
41.1°F
(5.1°C)
-0.3°F
(-0.2°C)
34th Coolest
Coolest since:
1952
90th Warmest
Warmest since:
2016
Ties: 1908, 1909, 1931, 1955, 1974, 1982

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