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, August 1939

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
August 1939
1-Month
64.6°F
(18.1°C)
64.1°F
(17.8°C)
0.5°F
(0.3°C)
67th Coolest
Coolest since:
1911
62nd Warmest
Warmest since:
1971, 2003
Ties: 1947, 1948, 1979
Jul–Aug 1939
2-Month
66.5°F
(19.2°C)
64.9°F
(18.3°C)
1.6°F
(0.9°C)
101st Coolest
Coolest since:
1993
28th Warmest
Warmest since:
2003
Ties: 1931, 1934, 2020
Jun–Aug 1939
3-Month
62.4°F
(16.9°C)
62.7°F
(17.1°C)
-0.3°F
(-0.2°C)
46th Coolest
Coolest since:
1993
83rd Warmest
Warmest since:
1936
Ties: 1913, 1966, 1972
May–Aug 1939
4-Month
60.4°F
(15.8°C)
59.6°F
(15.3°C)
0.8°F
(0.5°C)
86th Coolest
Coolest since:
1907
43rd Warmest
Warmest since:
1936
Apr–Aug 1939
5-Month
57.1°F
(13.9°C)
55.8°F
(13.2°C)
1.3°F
(0.7°C)
101st Coolest
Coolest since:
1907
28th Warmest
Warmest since:
1936, 1988
Ties: 1897, 1932
Mar–Aug 1939
6-Month
52.7°F
(11.5°C)
51.4°F
(10.8°C)
1.3°F
(0.7°C)
96th Coolest
Coolest since:
1899
33rd Warmest
Warmest since:
1988
Feb–Aug 1939
7-Month
46.9°F
(8.3°C)
47.1°F
(8.4°C)
-0.2°F
(-0.1°C)
59th Coolest
Coolest since:
1899
70th Warmest
Warmest since:
2016
Ties: 1915, 1953, 1954, 1964, 1966, 2009
Jan–Aug 1939
8-Month
44.3°F
(6.8°C)
43.3°F
(6.3°C)
1.0°F
(0.5°C)
85th Coolest
Coolest since:
1899
44th Warmest
Warmest since:
1934
Dec 1938–Aug 1939
9-Month
42.1°F
(5.6°C)
40.8°F
(4.9°C)
1.3°F
(0.7°C)
89th Coolest
Coolest since:
1899
39th Warmest
Warmest since:
2012
Ties: 1963, 2022
Nov 1938–Aug 1939
10-Month
40.6°F
(4.8°C)
39.7°F
(4.3°C)
0.9°F
(0.5°C)
88th Coolest
Coolest since:
1899
40th Warmest
Warmest since:
2000
Ties: 1970
Oct 1938–Aug 1939
11-Month
41.0°F
(5.0°C)
40.0°F
(4.4°C)
1.0°F
(0.6°C)
87th Coolest
Coolest since:
1899
41st Warmest
Warmest since:
2000, 2016
Ties: 1908
Sep 1938–Aug 1939
12-Month
42.7°F
(5.9°C)
41.1°F
(5.1°C)
1.6°F
(0.8°C)
96th Coolest
Coolest since:
1899
32nd Warmest
Warmest since:
2016
Ties: 1958, 1964, 1977
Mar 1938–Aug 1939
18-Month
45.7°F
(7.6°C)
44.6°F
(7.0°C)
1.1°F
(0.6°C)
96th Coolest
Coolest since:
1899
32nd Warmest
Warmest since:
2016
Ties: 1935, 1958, 1977, 1990, 2001, 2018
Sep 1937–Aug 1939
24-Month
42.3°F
(5.7°C)
41.1°F
(5.1°C)
1.2°F
(0.6°C)
95th Coolest
Coolest since:
1917
32nd Warmest
Warmest since:
2016
Ties: 1926, 1954, 1984, 2018
Sep 1936–Aug 1939
36-Month
41.5°F
(5.3°C)
41.1°F
(5.1°C)
0.4°F
(0.2°C)
78th Coolest
Coolest since:
1899, 1952
48th Warmest
Warmest since:
2017
Ties: 1959, 1981, 1984, 1985, 2010
Sep 1935–Aug 1939
48-Month
41.2°F
(5.1°C)
41.1°F
(5.1°C)
0.1°F
(0.0°C)
58th Coolest
Coolest since:
1952
67th Warmest
Warmest since:
2017, 2018
Ties: 1903, 1927, 1948, 1955, 1956, 1960, 1962, 1966, 1976, 1997
Sep 1934–Aug 1939
60-Month
41.2°F
(5.1°C)
41.1°F
(5.1°C)
0.1°F
(0.0°C)
64th Coolest
Coolest since:
1952
60th Warmest
Warmest since:
2016
Ties: 1933, 1958, 1978

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