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 1922

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
September 1922
1-Month
57.9°F
(14.4°C)
53.8°F
(12.1°C)
4.1°F
(2.3°C)
111th Coolest
Coolest since:
1965
18th Warmest
Warmest to Date
1998
Aug–Sep 1922
2-Month
62.4°F
(16.9°C)
59.0°F
(15.0°C)
3.4°F
(1.9°C)
117th Coolest
Coolest since:
1965
12th Warmest
Warmest to Date
2022
Jul–Sep 1922
3-Month
62.9°F
(17.2°C)
61.2°F
(16.2°C)
1.7°F
(1.0°C)
101st Coolest
Coolest since:
1912
28th Warmest
Warmest since:
2022
Ties: 1939, 2009
Jun–Sep 1922
4-Month
62.6°F
(17.0°C)
60.5°F
(15.8°C)
2.1°F
(1.2°C)
109th Coolest
Coolest since:
1993
20th Warmest
Warmest since:
2021
Ties: 1994
May–Sep 1922
5-Month
59.9°F
(15.5°C)
58.4°F
(14.7°C)
1.5°F
(0.8°C)
106th Coolest
Coolest since:
1907
23rd Warmest
Warmest since:
1936
Ties: 1934, 1938, 1963, 1990
Apr–Sep 1922
6-Month
56.4°F
(13.6°C)
55.5°F
(13.1°C)
0.9°F
(0.5°C)
91st Coolest
Coolest since:
1907
38th Warmest
Warmest since:
1936
Ties: 1933, 1961, 1981, 2020
Mar–Sep 1922
7-Month
52.0°F
(11.1°C)
51.7°F
(10.9°C)
0.3°F
(0.2°C)
71st Coolest
Coolest since:
1965
58th Warmest
Warmest since:
2012
Ties: 1957, 1969, 1979, 1984, 2009, 2010
Feb–Sep 1922
8-Month
46.4°F
(8.0°C)
47.9°F
(8.8°C)
-1.5°F
(-0.8°C)
20th Coolest
Coolest since:
1899
109th Warmest
Warmest since:
2012, 2016
Ties: 1911
Jan–Sep 1922
9-Month
42.6°F
(5.9°C)
44.5°F
(6.9°C)
-1.9°F
(-1.0°C)
17th Coolest
Coolest since:
1899
112th Warmest
Warmest since:
2012
Ties: 1911
Dec 1921–Sep 1922
10-Month
40.3°F
(4.6°C)
42.1°F
(5.6°C)
-1.8°F
(-1.0°C)
16th Coolest
Coolest since:
1950
112th Warmest
Warmest since:
2012
Ties: 1975
Nov 1921–Sep 1922
11-Month
39.1°F
(3.9°C)
41.0°F
(5.0°C)
-1.9°F
(-1.1°C)
17th Coolest
Coolest since:
1899
111th Warmest
Warmest since:
2012
Ties: 1978
Oct 1921–Sep 1922
12-Month
39.7°F
(4.3°C)
41.2°F
(5.1°C)
-1.5°F
(-0.8°C)
18th Coolest
Coolest since:
1899
110th Warmest
Warmest since:
2012
Ties: 1952, 1962, 1982
Apr 1921–Sep 1922
18-Month
45.0°F
(7.2°C)
45.9°F
(7.7°C)
-0.9°F
(-0.5°C)
22nd Coolest
Coolest since:
1917
106th Warmest
Warmest since:
2016
Ties: 1920, 1927, 1943, 1985
Oct 1920–Sep 1922
24-Month
41.0°F
(5.0°C)
41.1°F
(5.1°C)
-0.1°F
(-0.1°C)
51st Coolest
Coolest since:
1917
76th Warmest
Warmest since:
2016
Ties: 1933, 1944, 1953, 1994
Oct 1919–Sep 1922
36-Month
40.2°F
(4.6°C)
41.1°F
(5.1°C)
-0.9°F
(-0.5°C)
17th Coolest
Coolest since:
1951
109th Warmest
Warmest since:
2017
Ties: 1909
Oct 1918–Sep 1922
48-Month
40.9°F
(4.9°C)
41.1°F
(5.1°C)
-0.2°F
(-0.2°C)
42nd Coolest
Coolest since:
1952
83rd Warmest
Warmest since:
2007, 2017, 2018
Ties: 1908, 1928, 1958, 1959, 1967, 1985
Oct 1917–Sep 1922
60-Month
40.9°F
(4.9°C)
41.1°F
(5.1°C)
-0.2°F
(-0.2°C)
41st Coolest
Coolest since:
1952
83rd Warmest
Warmest since:
2016
Ties: 1904, 1928, 1949, 1956, 1959, 1960, 1968, 1997

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