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, April 1989

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PeriodValue1901-2000
Mean
AnomalyRank
(1895-2023)
Warmest/Coolest
Since
Record
April 1989
1-Month
41.0°F
(5.0°C)
40.7°F
(4.8°C)
0.3°F
(0.2°C)
72nd Coolest
Coolest since:
1975
58th Warmest
Warmest since:
1915
Ties: 2014
Mar–Apr 1989
2-Month
33.9°F
(1.1°C)
35.1°F
(1.7°C)
-1.2°F
(-0.6°C)
46th Coolest
Coolest since:
1899
84th Warmest
Warmest since:
1910
Ties: 1953, 1997
Feb–Apr 1989
3-Month
25.7°F
(-3.5°C)
30.5°F
(-0.8°C)
-4.8°F
(-2.7°C)
9th Coolest
Coolest since:
1899
121st Warmest
Warmest since:
2016
Ties: 1897, 1955
Jan–Apr 1989
4-Month
24.6°F
(-4.1°C)
27.0°F
(-2.8°C)
-2.4°F
(-1.3°C)
25th Coolest
Coolest since:
1899
105th Warmest
Warmest since:
1992
Ties: 1895
Dec 1988–Apr 1989
5-Month
24.3°F
(-4.3°C)
25.8°F
(-3.4°C)
-1.5°F
(-0.9°C)
37th Coolest
Coolest since:
1917
92nd Warmest
Warmest since:
1992
Ties: 1904
Nov 1988–Apr 1989
6-Month
25.4°F
(-3.7°C)
26.4°F
(-3.1°C)
-1.0°F
(-0.6°C)
43rd Coolest
Coolest since:
1979
86th Warmest
Warmest since:
1992
Ties: 1933, 1947, 1996, 2019
Oct 1988–Apr 1989
7-Month
28.4°F
(-2.0°C)
28.8°F
(-1.8°C)
-0.4°F
(-0.2°C)
52nd Coolest
Coolest since:
1899, 1917
77th Warmest
Warmest since:
2000, 2016
Ties: 1918
Sep 1988–Apr 1989
8-Month
31.6°F
(-0.2°C)
31.9°F
(-0.1°C)
-0.3°F
(-0.1°C)
54th Coolest
Coolest since:
1917
75th Warmest
Warmest since:
2016
Aug 1988–Apr 1989
9-Month
35.3°F
(1.8°C)
35.5°F
(1.9°C)
-0.2°F
(-0.1°C)
53rd Coolest
Coolest since:
1917
76th Warmest
Warmest since:
2016
Ties: 1901, 1918, 1955
Jul 1988–Apr 1989
10-Month
38.6°F
(3.7°C)
38.5°F
(3.6°C)
0.1°F
(0.1°C)
56th Coolest
Coolest since:
1917
73rd Warmest
Warmest since:
2016
Ties: 1918, 1925, 1955, 2018
Jun 1988–Apr 1989
11-Month
41.2°F
(5.1°C)
40.3°F
(4.6°C)
0.9°F
(0.5°C)
82nd Coolest
Coolest since:
1917
47th Warmest
Warmest since:
2016
Ties: 1944, 2020
May 1988–Apr 1989
12-Month
42.4°F
(5.8°C)
41.1°F
(5.1°C)
1.3°F
(0.7°C)
94th Coolest
Coolest since:
1917
35th Warmest
Warmest since:
2016
Ties: 1935, 1938, 1939, 1980
Nov 1987–Apr 1989
18-Month
38.2°F
(3.4°C)
36.2°F
(2.3°C)
2.0°F
(1.1°C)
108th Coolest
Coolest since:
1917
20th Warmest
Warmest since:
2016
Ties: 2005
May 1987–Apr 1989
24-Month
42.8°F
(6.0°C)
41.1°F
(5.1°C)
1.7°F
(0.9°C)
109th Coolest
Coolest since:
1917
19th Warmest
Warmest since:
2016
Ties: 1991
May 1986–Apr 1989
36-Month
43.1°F
(6.2°C)
41.1°F
(5.1°C)
2.0°F
(1.1°C)
117th Coolest
Coolest since:
1918
10th Warmest
Warmest to Date
2017
Ties: 2014
May 1985–Apr 1989
48-Month
42.5°F
(5.8°C)
41.1°F
(5.1°C)
1.4°F
(0.7°C)
104th Coolest
Coolest since:
1952
22nd Warmest
Warmest since:
2007, 2016, 2017
Ties: 1934, 2010, 2023
May 1984–Apr 1989
60-Month
42.0°F
(5.6°C)
41.1°F
(5.1°C)
0.9°F
(0.5°C)
88th Coolest
Coolest since:
1952
37th Warmest
Warmest since:
2016
Ties: 1944, 2011

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