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


Montana

Precipitation Rankings, May 2017

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
May 2017
1-Month
1.54"
(39.12mm)
2.42"
(61.47mm)
-0.88"
(-22.35mm)
21st Driest Driest since: 2009 1937
105th Wettest Wettest since: 2016 1927
Ties: 1969
Apr–May 2017
2-Month
3.67"
(93.22mm)
3.93"
(99.82mm)
-0.26"
(-6.60mm)
54th Driest Driest since: 2015 1934
72nd Wettest Wettest since: 2016 2011
Mar–May 2017
3-Month
5.51"
(139.95mm)
5.20"
(132.08mm)
0.31"
(7.87mm)
73rd Driest Driest since: 2015 1931
53rd Wettest Wettest since: 2016 2011
Ties: 1903, 1907
Feb–May 2017
4-Month
7.23"
(183.64mm)
6.26"
(159.00mm)
0.97"
(24.64mm)
91st Driest Driest since: 2015 1931
35th Wettest Wettest since: 2016 2011
Jan–May 2017
5-Month
8.14"
(206.76mm)
7.61"
(193.29mm)
0.53"
(13.47mm)
73rd Driest Driest since: 2015 1931
53rd Wettest Wettest since: 2016 2011
Dec 2016–May 2017
6-Month
9.63"
(244.60mm)
8.90"
(226.06mm)
0.73"
(18.54mm)
82nd Driest Driest since: 2015 1931
43rd Wettest Wettest since: 2016 2011
Nov 2016–May 2017
7-Month
10.28"
(261.11mm)
10.19"
(258.83mm)
0.09"
(2.28mm)
58th Driest Driest since: 2015 1931
67th Wettest Wettest since: 2016 2011
Oct 2016–May 2017
8-Month
13.64"
(346.46mm)
11.44"
(290.58mm)
2.20"
(55.88mm)
109th Driest Driest since: 2016 1931
16th Wettest Wettest since: 2011 2011
Sep 2016–May 2017
9-Month
16.11"
(409.19mm)
12.89"
(327.41mm)
3.22"
(81.78mm)
115th Driest Driest since: 2016 1905
10th Wettest Wettest since: 2011 2011
Aug 2016–May 2017
10-Month
17.15"
(435.61mm)
14.22"
(361.19mm)
2.93"
(74.42mm)
114th Driest Driest since: 2016 1905
11th Wettest Wettest since: 2011 2011
Jul 2016–May 2017
11-Month
19.22"
(488.19mm)
15.80"
(401.32mm)
3.42"
(86.87mm)
117th Driest Driest since: 2016 1905
8th Wettest Wettest since: 2011 2011
Jun 2016–May 2017
12-Month
20.75"
(527.05mm)
18.65"
(473.71mm)
2.10"
(53.34mm)
103rd Driest Driest since: 2016 1905
22nd Wettest Wettest since: 2011 2011
Ties: 1908
Dec 2015–May 2017
18-Month
30.92"
(785.37mm)
27.58"
(700.53mm)
3.34"
(84.84mm)
108th Driest Driest since: 2016 1937
16th Wettest Wettest since: 2012 2011
Jun 2015–May 2017
24-Month
39.61"
(1,006.09mm)
37.34"
(948.44mm)
2.27"
(57.65mm)
90th Driest Driest since: 2016 1937
34th Wettest Wettest since: 2015 1917
Jun 2014–May 2017
36-Month
59.22"
(1,504.19mm)
56.01"
(1,422.65mm)
3.21"
(81.54mm)
93rd Driest Driest since: 2016 1937
30th Wettest Wettest since: 2013 1917
Jun 2013–May 2017
48-Month
79.65"
(2,023.11mm)
74.74"
(1,898.40mm)
4.91"
(124.71mm)
103rd Driest Driest since: 2016 1937
19th Wettest Wettest since: 2014 1899, 1910
Jun 2012–May 2017
60-Month
96.44"
(2,449.58mm)
93.47"
(2,374.14mm)
2.97"
(75.44mm)
78th Driest Driest since: 2016 1938
43rd Wettest Wettest since: 2015 1910

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2019, retrieved on October 17, 2019 from https://www.ncdc.noaa.gov/cag/