Climate at a Glance

Statewide Rankings

Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of December 2019. For more information, please see Climatological Rankings.


Montana

Average Temperature Rankings, May 1991

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
May 1991
1-Month
49.8°F
(9.9°C)
50.2°F
(10.1°C)
-0.4°F
(-0.2°C)
62nd Coolest Coolest since: 1990 1907, 1927
64th Warmest Warmest since: 1989 1934
Ties: 1921
Apr–May 1991
2-Month
45.2°F
(7.3°C)
45.5°F
(7.5°C)
-0.3°F
(-0.2°C)
56th Coolest Coolest since: 1984 1975
70th Warmest Warmest since: 1990 1934
Ties: 1902, 2009
Mar–May 1991
3-Month
40.8°F
(4.9°C)
40.1°F
(4.5°C)
0.7°F
(0.4°C)
76th Coolest Coolest since: 1989 1899
50th Warmest Warmest since: 1990 1910
Ties: 1895, 1937, 1973
Feb–May 1991
4-Month
39.1°F
(3.9°C)
35.4°F
(1.9°C)
3.7°F
(2.0°C)
114th Coolest Coolest since: 1990 1899
12th Warmest Warmest since: 1988 1992
Jan–May 1991
5-Month
34.4°F
(1.3°C)
31.7°F
(-0.2°C)
2.7°F
(1.5°C)
98th Coolest Coolest since: 1989 1899
28th Warmest Warmest since: 1990 1992
Dec 1990–May 1991
6-Month
30.9°F
(-0.6°C)
29.9°F
(-1.2°C)
1.0°F
(0.6°C)
81st Coolest Coolest since: 1989 1917
44th Warmest Warmest since: 1990 1992
Nov 1990–May 1991
7-Month
31.2°F
(-0.4°C)
29.8°F
(-1.2°C)
1.4°F
(0.8°C)
86th Coolest Coolest since: 1989 1899
39th Warmest Warmest since: 1990 1992
Ties: 1939
Oct 1990–May 1991
8-Month
32.6°F
(0.3°C)
31.5°F
(-0.3°C)
1.1°F
(0.6°C)
82nd Coolest Coolest since: 1989 1899
43rd Warmest Warmest since: 1990 1934, 2000
Ties: 1995
Sep 1990–May 1991
9-Month
35.7°F
(2.1°C)
34.0°F
(1.1°C)
1.7°F
(1.0°C)
93rd Coolest Coolest since: 1989 1899
32nd Warmest Warmest since: 1990 2016
Ties: 1953, 1954, 1983, 2013
Aug 1990–May 1991
10-Month
38.7°F
(3.7°C)
36.9°F
(2.7°C)
1.8°F
(1.0°C)
96th Coolest Coolest since: 1989 1917
29th Warmest Warmest since: 1990 1992, 2016
Ties: 1963
Jul 1990–May 1991
11-Month
41.2°F
(5.1°C)
39.6°F
(4.2°C)
1.6°F
(0.9°C)
96th Coolest Coolest since: 1989 1917
29th Warmest Warmest since: 1990 1992, 2016
Ties: 1900, 2017
Jun 1990–May 1991
12-Month
42.6°F
(5.9°C)
41.1°F
(5.1°C)
1.5°F
(0.8°C)
96th Coolest Coolest since: 1989 1917
29th Warmest Warmest since: 1990 2016
Ties: 1977, 1995
Dec 1989–May 1991
18-Month
39.2°F
(4.0°C)
37.4°F
(3.0°C)
1.8°F
(1.0°C)
104th Coolest Coolest since: 1990 1917
20th Warmest Warmest since: 1988 2016
Ties: 1964, 1993, 1995
Jun 1989–May 1991
24-Month
42.8°F
(6.0°C)
41.1°F
(5.1°C)
1.7°F
(0.9°C)
106th Coolest Coolest since: 1990 1917
18th Warmest Warmest since: 1988 2016
Ties: 2015
Jun 1988–May 1991
36-Month
42.5°F
(5.8°C)
41.1°F
(5.1°C)
1.4°F
(0.7°C)
100th Coolest Coolest since: 1987 1918
23rd Warmest Warmest since: 1990 2017
Ties: 1940, 1942
Jun 1987–May 1991
48-Month
42.7°F
(5.9°C)
41.1°F
(5.1°C)
1.6°F
(0.8°C)
106th Coolest Coolest since: 1989 1899, 1952
16th Warmest Warmest since: 1990 2016
Ties: 1934, 1993, 2003, 2019
Jun 1986–May 1991
60-Month
42.9°F
(6.1°C)
41.0°F
(5.0°C)
1.9°F
(1.1°C)
110th Coolest Coolest since: 1990 1952
11th Warmest Warmest to Date 2016
Ties: 2004, 2019

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2020, retrieved on January 19, 2020 from https://www.ncdc.noaa.gov/cag/