Climate at a Glance

City 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 October 2021. For more information, please see Climatological Rankings.


Helena, Montana

Average Temperature Rankings, December 1989

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  • Record Warmest
Period Value 1981-2010
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
December 1989
1-Month
24.8°F
(-4.0°C)
22.1°F
(-5.5°C)
2.7°F
(1.5°C)
43rd Coolest Coolest since: 1988 1983
40th Warmest Warmest since: 1987 1957
Ties: 1995
Nov–Dec 1989
2-Month
31.3°F
(-0.4°C)
27.6°F
(-2.4°C)
3.7°F
(2.0°C)
65th Coolest Coolest since: 1988 1985
18th Warmest Warmest since: 1981 1999
Oct–Dec 1989
3-Month
36.2°F
(2.3°C)
33.7°F
(0.9°C)
2.5°F
(1.4°C)
66th Coolest Coolest since: 1986 1985
16th Warmest Warmest since: 1988 1953
Ties: 1956
Sep–Dec 1989
4-Month
41.3°F
(5.2°C)
39.9°F
(4.4°C)
1.4°F
(0.8°C)
50th Coolest Coolest since: 1986 1985
32nd Warmest Warmest since: 1988 1953
Ties: 2016
Aug–Dec 1989
5-Month
46.1°F
(7.8°C)
45.6°F
(7.6°C)
0.5°F
(0.2°C)
38th Coolest Coolest since: 1986 1985
44th Warmest Warmest since: 1988 1953
Jul–Dec 1989
6-Month
50.6°F
(10.3°C)
49.8°F
(9.9°C)
0.8°F
(0.4°C)
46th Coolest Coolest since: 1987 1985
36th Warmest Warmest since: 1988 1953
Ties: 1974, 1991, 2017
Jun–Dec 1989
7-Month
52.4°F
(11.3°C)
51.6°F
(10.9°C)
0.8°F
(0.4°C)
50th Coolest Coolest since: 1987 1985
32nd Warmest Warmest since: 1988 2001
Ties: 1990
May–Dec 1989
8-Month
52.4°F
(11.3°C)
52.0°F
(11.1°C)
0.4°F
(0.2°C)
45th Coolest Coolest since: 1986 1985
37th Warmest Warmest since: 1988 2001
Ties: 1941, 1997, 2011
Apr–Dec 1989
9-Month
51.7°F
(10.9°C)
51.3°F
(10.7°C)
0.4°F
(0.2°C)
50th Coolest Coolest since: 1986 1951
32nd Warmest Warmest since: 1988 2001
Ties: 1941, 1990
Mar–Dec 1989
10-Month
49.4°F
(9.7°C)
49.8°F
(9.9°C)
-0.4°F
(-0.2°C)
31st Coolest Coolest since: 1986 1951
49th Warmest Warmest since: 1988 2007
Feb–Dec 1989
11-Month
45.5°F
(7.5°C)
47.8°F
(8.8°C)
-2.3°F
(-1.3°C)
8th Coolest Coolest since: 1985 1951
72nd Warmest Warmest since: 1988 2015
Ties: 1944
Jan–Dec 1989
12-Month
43.8°F
(6.6°C)
45.8°F
(7.7°C)
-2.0°F
(-1.1°C)
14th Coolest Coolest since: 1985 1951
66th Warmest Warmest since: 1988 2015
Ties: 1959, 1969
Jul 1988–Dec 1989
18-Month
46.4°F
(8.0°C)
47.1°F
(8.4°C)
-0.7°F
(-0.4°C)
31st Coolest Coolest since: 1986 1985
47th Warmest Warmest since: 1988 2016
Ties: 1965
Jan 1988–Dec 1989
24-Month
45.7°F
(7.6°C)
45.8°F
(7.7°C)
-0.1°F
(-0.1°C)
43rd Coolest Coolest since: 1986 1951
33rd Warmest Warmest since: 1988 2016
Ties: 2005
Jan 1987–Dec 1989
36-Month
46.3°F
(7.9°C)
45.9°F
(7.7°C)
0.4°F
(0.2°C)
57th Coolest Coolest since: 1987 1951
15th Warmest Warmest since: 1988 2017
Ties: 1967, 1968, 2002, 2009
Jan 1986–Dec 1989
48-Month
46.0°F
(7.8°C)
45.9°F
(7.7°C)
0.1°F
(0.1°C)
54th Coolest Coolest since: 1988 1951, 1952
14th Warmest Warmest since: 1968 2001, 2018
Ties: 1942, 1964, 1968, 2005, 2013
Jan 1985–Dec 1989
60-Month
45.1°F
(7.3°C)
45.8°F
(7.7°C)
-0.7°F
(-0.4°C)
26th Coolest Coolest since: 1987 1952
38th Warmest Warmest since: 1988 2007
Ties: 1977

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: City Time Series, published November 2021, retrieved on December 4, 2021 from https://www.ncdc.noaa.gov/cag/