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, May 1981

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
May 1981
1-Month
50.7°F
(10.4°C)
50.2°F
(10.1°C)
0.5°F
(0.3°C)
76th Coolest
Coolest since:
1907, 1927
53rd Warmest
Warmest since:
1934
Ties: 1964
Apr–May 1981
2-Month
47.2°F
(8.4°C)
45.5°F
(7.5°C)
1.7°F
(0.9°C)
97th Coolest
Coolest since:
1975
32nd Warmest
Warmest since:
1934
Ties: 1932, 2001, 2012, 2017
Mar–May 1981
3-Month
43.5°F
(6.4°C)
40.1°F
(4.5°C)
3.4°F
(1.9°C)
116th Coolest
Coolest since:
1899
13th Warmest
Warmest since:
1910
Ties: 1946
Feb–May 1981
4-Month
39.2°F
(4.0°C)
35.4°F
(1.9°C)
3.8°F
(2.1°C)
119th Coolest
Coolest since:
1899
10th Warmest
Warmest since:
1992
Ties: 1988
Jan–May 1981
5-Month
37.0°F
(2.8°C)
31.6°F
(-0.2°C)
5.4°F
(3.0°C)
124th Coolest
Coolest since:
1899
5th Warmest
Warmest since:
1992
Dec 1980–May 1981
6-Month
34.8°F
(1.6°C)
29.8°F
(-1.2°C)
5.0°F
(2.8°C)
122nd Coolest
Coolest since:
1917
6th Warmest
Warmest since:
1992
Ties: 1926, 2000, 2015
Nov 1980–May 1981
7-Month
34.7°F
(1.5°C)
29.8°F
(-1.2°C)
4.9°F
(2.7°C)
123rd Coolest
Coolest since:
1899
5th Warmest
Warmest since:
1992
Oct 1980–May 1981
8-Month
35.8°F
(2.1°C)
31.4°F
(-0.3°C)
4.4°F
(2.4°C)
123rd Coolest
Coolest since:
1899
5th Warmest
Warmest since:
1934, 2000
Ties: 1987
Sep 1980–May 1981
9-Month
37.9°F
(3.3°C)
33.9°F
(1.1°C)
4.0°F
(2.2°C)
122nd Coolest
Coolest since:
1899
6th Warmest
Warmest since:
2016
Aug 1980–May 1981
10-Month
40.1°F
(4.5°C)
36.9°F
(2.7°C)
3.2°F
(1.8°C)
120th Coolest
Coolest since:
1917
8th Warmest
Warmest since:
1992, 2016
Ties: 2006
Jul 1980–May 1981
11-Month
42.5°F
(5.8°C)
39.6°F
(4.2°C)
2.9°F
(1.6°C)
119th Coolest
Coolest since:
1917
9th Warmest
Warmest since:
1992, 2016
Jun 1980–May 1981
12-Month
43.9°F
(6.6°C)
41.2°F
(5.1°C)
2.7°F
(1.5°C)
121st Coolest
Coolest since:
1917
7th Warmest
Warmest since:
2016
Ties: 1987, 2006
Dec 1979–May 1981
18-Month
39.9°F
(4.4°C)
37.3°F
(2.9°C)
2.6°F
(1.5°C)
116th Coolest
Coolest since:
1917
11th Warmest
Warmest to Date
2016
Ties: 2004, 2022
Jun 1979–May 1981
24-Month
43.3°F
(6.3°C)
41.1°F
(5.1°C)
2.2°F
(1.2°C)
116th Coolest
Coolest since:
1917
11th Warmest
Warmest since:
2016
Ties: 2008, 2022
Jun 1978–May 1981
36-Month
41.4°F
(5.2°C)
41.1°F
(5.1°C)
0.3°F
(0.1°C)
73rd Coolest
Coolest since:
1918
53rd Warmest
Warmest since:
2017
Ties: 1959, 1965, 1976, 1978, 1984, 2020
Jun 1977–May 1981
48-Month
41.0°F
(5.0°C)
41.1°F
(5.1°C)
-0.1°F
(-0.1°C)
51st Coolest
Coolest since:
1899, 1952
74th Warmest
Warmest since:
2016
Ties: 1924, 1928, 1955
Jun 1976–May 1981
60-Month
41.3°F
(5.2°C)
41.1°F
(5.1°C)
0.2°F
(0.1°C)
69th Coolest
Coolest since:
1952
55th Warmest
Warmest since:
2016
Ties: 1927, 1939, 1946, 1948, 1978, 1983

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