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 July 2019. For more information, please see Climatological Rankings.


Helena, Montana

Average Temperature Rankings, April 1999

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  • Record Warmest
Period Value 1981-2010
Mean
Amomaly Rank
(1938-2019)
Warmest/Coolest
Since
Record
April 1999
1-Month
42.1°F
(5.6°C)
44.3°F
(6.8°C)
-2.2°F
(-1.2°C)
21st Coolest Coolest since: 1997 1975
61st Warmest Warmest since: 1998 1987
Mar–Apr 1999
2-Month
39.7°F
(4.3°C)
40.0°F
(4.4°C)
-0.3°F
(-0.1°C)
47th Coolest Coolest since: 1998 1951
33rd Warmest Warmest since: 1994 2015
Feb–Apr 1999
3-Month
36.9°F
(2.7°C)
35.6°F
(2.0°C)
1.3°F
(0.7°C)
58th Coolest Coolest since: 1998 1975
22nd Warmest Warmest since: 1992 2016
Ties: 2005
Jan–Apr 1999
4-Month
34.4°F
(1.3°C)
32.4°F
(0.2°C)
2.0°F
(1.1°C)
66th Coolest Coolest since: 1998 1949
14th Warmest Warmest since: 1992 2016
Dec 1998–Apr 1999
5-Month
32.0°F
(0.0°C)
30.2°F
(-1.0°C)
1.8°F
(1.0°C)
63rd Coolest Coolest since: 1998 1949
16th Warmest Warmest since: 1994 2016
Nov 1998–Apr 1999
6-Month
32.4°F
(0.2°C)
30.5°F
(-0.8°C)
1.9°F
(1.0°C)
67th Coolest Coolest since: 1998 1979
12th Warmest Warmest since: 1992 2000
Oct 1998–Apr 1999
7-Month
34.2°F
(1.2°C)
32.5°F
(0.3°C)
1.7°F
(0.9°C)
68th Coolest Coolest since: 1998 1949, 1979
10th Warmest Warmest since: 1992 2000
Sep 1998–Apr 1999
8-Month
37.8°F
(3.2°C)
35.6°F
(2.0°C)
2.2°F
(1.2°C)
74th Coolest Coolest since: 1998 1979
4th Warmest Warmest since: 1992 2016
Ties: 1946, 1992
Aug 1998–Apr 1999
9-Month
41.5°F
(5.3°C)
39.2°F
(4.0°C)
2.3°F
(1.3°C)
73rd Coolest Coolest since: 1998 1979
5th Warmest Warmest since: 1992 2016
Jul 1998–Apr 1999
10-Month
44.5°F
(6.9°C)
42.2°F
(5.7°C)
2.3°F
(1.2°C)
73rd Coolest Coolest since: 1998 1949
5th Warmest Warmest since: 1992 2016
Jun 1998–Apr 1999
11-Month
45.6°F
(7.6°C)
43.9°F
(6.6°C)
1.7°F
(1.0°C)
70th Coolest Coolest since: 1998 1949
8th Warmest Warmest since: 1992 2016
Ties: 2007
May 1998–Apr 1999
12-Month
46.5°F
(8.1°C)
44.8°F
(7.1°C)
1.7°F
(1.0°C)
73rd Coolest Coolest since: 1998 1949
5th Warmest Warmest since: 1992 2016
Ties: 1941, 1992, 2004, 2007
Nov 1997–Apr 1999
18-Month
41.3°F
(5.2°C)
40.1°F
(4.5°C)
1.2°F
(0.7°C)
66th Coolest Coolest since: 1998 1952
9th Warmest Warmest since: 1992 2000, 2013
Ties: 1991
May 1997–Apr 1999
24-Month
45.8°F
(7.7°C)
44.8°F
(7.1°C)
1.0°F
(0.6°C)
65th Coolest Coolest since: 1998 1952
9th Warmest Warmest since: 1992 2017
May 1996–Apr 1999
36-Month
44.7°F
(7.1°C)
44.8°F
(7.1°C)
-0.1°F
(0.0°C)
48th Coolest Coolest since: 1998 1951
22nd Warmest Warmest since: 1993 2018
Ties: 1963, 2019
May 1995–Apr 1999
48-Month
44.1°F
(6.7°C)
44.8°F
(7.1°C)
-0.7°F
(-0.4°C)
38th Coolest Coolest since: 1998 1952
28th Warmest Warmest since: 1995 2002
Ties: 1943, 1963, 1965, 1966
May 1994–Apr 1999
60-Month
44.5°F
(6.9°C)
44.9°F
(7.2°C)
-0.4°F
(-0.3°C)
41st Coolest Coolest since: 1998 1952
21st Warmest Warmest since: 1995 2008
Ties: 1968

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: City Time Series, published August 2019, retrieved on August 21, 2019 from https://www.ncdc.noaa.gov/cag/