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


Helena, Montana

Average Temperature Rankings, May 2015

View Period (Months):All1234567891011121824364860
Download: xml csv json
  • Record Coolest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1981-2010
Mean
Amomaly Rank
(1938-2019)
Warmest/Coolest
Since
Record
May 2015
1-Month
54.0°F
(12.2°C)
53.8°F
(12.1°C)
0.2°F
(0.1°C)
48th Coolest Coolest since: 2012 2010
34th Warmest Warmest since: 2013 1958
Ties: 1973
Apr–May 2015
2-Month
50.0°F
(10.0°C)
49.3°F
(9.6°C)
0.7°F
(0.4°C)
55th Coolest Coolest since: 2013 1975
27th Warmest Warmest since: 2012 1987
Ties: 1944, 2012
Mar–May 2015
3-Month
48.2°F
(9.0°C)
44.8°F
(7.1°C)
3.4°F
(1.9°C)
78th Coolest Coolest since: 2013 1975
2nd Warmest Warmest since: 1992 1992
Ties: 1987
Feb–May 2015
4-Month
44.8°F
(7.1°C)
40.5°F
(4.7°C)
4.3°F
(2.4°C)
77th Coolest Coolest since: 2013 2019
3rd Warmest Warmest since: 1992 1992
Jan–May 2015
5-Month
40.7°F
(4.8°C)
36.9°F
(2.7°C)
3.8°F
(2.1°C)
77th Coolest Coolest since: 2013 1943
3rd Warmest Warmest since: 1992 1992
Dec 2014–May 2015
6-Month
-- 0.0°F
(-17.8°C)
-- -- -- 1949
-- -- 1992
Ties: 1955, 2014
Nov 2014–May 2015
7-Month
-- 0.0°F
(-17.8°C)
-- -- -- 1979
-- -- 2000
Ties: 1955, 2014
Oct 2014–May 2015
8-Month
-- 0.0°F
(-17.8°C)
-- -- -- 1949
-- -- 2000
Ties: 1955, 1981, 2014
Sep 2014–May 2015
9-Month
-- 0.0°F
(-17.8°C)
-- -- -- 1949
-- -- 2000
Ties: 1955, 1981, 2014
Aug 2014–May 2015
10-Month
-- 0.0°F
(-17.8°C)
-- -- -- 1949, 1979
-- -- 2000
Ties: 1955, 1981, 2014
Jul 2014–May 2015
11-Month
-- 0.0°F
(-17.8°C)
-- -- -- 1949
-- -- 2016
Ties: 1955, 1981, 2014
Jun 2014–May 2015
12-Month
-- 0.0°F
(-17.8°C)
-- -- -- 1949
-- -- 2016
Ties: 1955, 1981, 2014
Dec 2013–May 2015
18-Month
-- 0.0°F
(-17.8°C)
-- -- -- 1950
-- -- 2000
Ties: 1955, 1956, 1981, 2014, 2016
Jun 2013–May 2015
24-Month
-- 0.0°F
(-17.8°C)
-- -- -- 1952
-- -- 2000, 2017
Ties: 1955, 1956, 1981, 1982, 2014, 2016
Jun 2012–May 2015
36-Month
-- 0.0°F
(-17.8°C)
-- -- -- 1951
-- -- 1992, 2000
Ties: 1955, 1956, 1957, 1981, 1982, 1983, 2014, 2016, 2017
Jun 2011–May 2015
48-Month
-- 0.0°F
(-17.8°C)
-- -- -- 1952
-- -- 2002
Ties: 1955, 1956, 1957, 1958, 1981, 1982, 1983, 1984, 2014, 2016, 2017, 2018
Jun 2010–May 2015
60-Month
-- 0.0°F
(-17.8°C)
-- -- -- 1952
-- -- 1992, 2002

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: City Time Series, published September 2019, retrieved on September 19, 2019 from https://www.ncdc.noaa.gov/cag/