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 2019

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 2019
1-Month
2.66"
(67.56mm)
2.42"
(61.47mm)
0.24"
(6.09mm)
81st Driest Driest since: 2017 1937
45th Wettest Wettest since: 2018 1927
Apr–May 2019
2-Month
4.84"
(122.94mm)
3.93"
(99.82mm)
0.91"
(23.12mm)
96th Driest Driest since: 2017 1934
30th Wettest Wettest since: 2018 2011
Mar–May 2019
3-Month
5.47"
(138.94mm)
5.20"
(132.08mm)
0.27"
(6.86mm)
67th Driest Driest since: 2015 1931
59th Wettest Wettest since: 2018 2011
Feb–May 2019
4-Month
7.39"
(187.71mm)
6.26"
(159.00mm)
1.13"
(28.71mm)
95th Driest Driest since: 2017 1931
31st Wettest Wettest since: 2018 2011
Jan–May 2019
5-Month
8.43"
(214.12mm)
7.61"
(193.29mm)
0.82"
(20.83mm)
83rd Driest Driest since: 2017 1931
43rd Wettest Wettest since: 2018 2011
Dec 2018–May 2019
6-Month
9.41"
(239.01mm)
8.90"
(226.06mm)
0.51"
(12.95mm)
73rd Driest Driest since: 2015 1931
52nd Wettest Wettest since: 2018 2011
Nov 2018–May 2019
7-Month
10.85"
(275.59mm)
10.19"
(258.83mm)
0.66"
(16.76mm)
75th Driest Driest since: 2017 1931
50th Wettest Wettest since: 2018 2011
Oct 2018–May 2019
8-Month
12.19"
(309.63mm)
11.44"
(290.58mm)
0.75"
(19.05mm)
73rd Driest Driest since: 2015 1931
52nd Wettest Wettest since: 2018 2011
Ties: 1928
Sep 2018–May 2019
9-Month
13.28"
(337.31mm)
12.89"
(327.41mm)
0.39"
(9.90mm)
65th Driest Driest since: 2015 1905
60th Wettest Wettest since: 2018 2011
Aug 2018–May 2019
10-Month
14.33"
(363.98mm)
14.22"
(361.19mm)
0.11"
(2.79mm)
58th Driest Driest since: 2013 1905
67th Wettest Wettest since: 2018 2011
Ties: 1960
Jul 2018–May 2019
11-Month
15.10"
(383.54mm)
15.80"
(401.32mm)
-0.70"
(-17.78mm)
45th Driest Driest since: 2013 1905
80th Wettest Wettest since: 2018 2011
Jun 2018–May 2019
12-Month
18.73"
(475.74mm)
18.66"
(473.96mm)
0.07"
(1.78mm)
59th Driest Driest since: 2013 1905
66th Wettest Wettest since: 2018 2011
Dec 2017–May 2019
18-Month
30.21"
(767.33mm)
27.58"
(700.53mm)
2.63"
(66.80mm)
101st Driest Driest since: 2018 1937
23rd Wettest Wettest since: 2017 2011
Jun 2017–May 2019
24-Month
37.69"
(957.33mm)
37.34"
(948.44mm)
0.35"
(8.89mm)
67th Driest Driest since: 2014 1937
57th Wettest Wettest since: 2018 1917
Jun 2016–May 2019
36-Month
58.44"
(1,484.38mm)
56.01"
(1,422.65mm)
2.43"
(61.73mm)
83rd Driest Driest since: 2015 1937
40th Wettest Wettest since: 2018 1917
Jun 2015–May 2019
48-Month
77.30"
(1,963.42mm)
74.74"
(1,898.40mm)
2.56"
(65.02mm)
77th Driest Driest since: 2016 1937
45th Wettest Wettest since: 2018 1899, 1910
Jun 2014–May 2019
60-Month
96.91"
(2,461.51mm)
93.47"
(2,374.14mm)
3.44"
(87.37mm)
82nd Driest Driest since: 2017 1938
39th Wettest Wettest since: 2018 1910

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2019, retrieved on October 18, 2019 from https://www.ncdc.noaa.gov/cag/