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 March 2021. 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
(1895-2020)
Wettest/Driest
Since
Record
May 2019
1-Month
2.67"
(67.82mm)
2.42"
(61.47mm)
0.25"
(6.35mm)
82nd Driest Driest since: 2017 1937
45th Wettest Wettest since: 2018 1927
Apr–May 2019
2-Month
4.85"
(123.19mm)
3.93"
(99.82mm)
0.92"
(23.37mm)
97th Driest Driest since: 2017 1934
30th Wettest Wettest since: 2018 2011
Mar–May 2019
3-Month
5.48"
(139.19mm)
5.20"
(132.08mm)
0.28"
(7.11mm)
68th Driest Driest since: 2015 1931
59th Wettest Wettest since: 2018 2011
Feb–May 2019
4-Month
7.40"
(187.96mm)
6.26"
(159.00mm)
1.14"
(28.96mm)
97th Driest Driest since: 2017 1931
30th Wettest Wettest since: 2018 2011
Ties: 1938
Jan–May 2019
5-Month
8.44"
(214.38mm)
7.61"
(193.29mm)
0.83"
(21.09mm)
85th Driest Driest since: 2017 1931
42nd Wettest Wettest since: 2018 2011
Ties: 1917
Dec 2018–May 2019
6-Month
9.43"
(239.52mm)
8.90"
(226.06mm)
0.53"
(13.46mm)
74th Driest Driest since: 2015 1931
52nd Wettest Wettest since: 2018 2011
Nov 2018–May 2019
7-Month
10.87"
(276.10mm)
10.19"
(258.83mm)
0.68"
(17.27mm)
76th Driest Driest since: 2017 1931
50th Wettest Wettest since: 2018 2011
Oct 2018–May 2019
8-Month
12.21"
(310.13mm)
11.44"
(290.58mm)
0.77"
(19.55mm)
74th Driest Driest since: 2015 1931
52nd Wettest Wettest since: 2018 2011
Sep 2018–May 2019
9-Month
13.30"
(337.82mm)
12.90"
(327.66mm)
0.40"
(10.16mm)
66th Driest Driest since: 2015 1905
60th Wettest Wettest since: 2018 2011
Aug 2018–May 2019
10-Month
14.35"
(364.49mm)
14.22"
(361.19mm)
0.13"
(3.30mm)
59th Driest Driest since: 2013 1905
67th Wettest Wettest since: 2018 2011
Ties: 1910, 1953
Jul 2018–May 2019
11-Month
15.11"
(383.79mm)
15.80"
(401.32mm)
-0.69"
(-17.53mm)
45th Driest Driest since: 2013 1905
81st Wettest Wettest since: 2018 2011
Ties: 1929
Jun 2018–May 2019
12-Month
18.73"
(475.74mm)
18.65"
(473.71mm)
0.08"
(2.03mm)
59th Driest Driest since: 2013 1905
67th Wettest Wettest since: 2018 2011
Dec 2017–May 2019
18-Month
30.23"
(767.84mm)
27.58"
(700.53mm)
2.65"
(67.31mm)
102nd Driest Driest since: 2018 1937
23rd Wettest Wettest since: 2017 2011
Jun 2017–May 2019
24-Month
37.71"
(957.83mm)
37.34"
(948.44mm)
0.37"
(9.39mm)
67th Driest Driest since: 2014 1937
58th Wettest Wettest since: 2018 1917
Jun 2016–May 2019
36-Month
58.46"
(1,484.88mm)
56.01"
(1,422.65mm)
2.45"
(62.23mm)
84th Driest Driest since: 2015 1937
40th Wettest Wettest since: 2018 1917
Jun 2015–May 2019
48-Month
77.32"
(1,963.93mm)
74.74"
(1,898.40mm)
2.58"
(65.53mm)
77th Driest Driest since: 2016 1937
46th Wettest Wettest since: 2018 1899, 1910
Jun 2014–May 2019
60-Month
96.93"
(2,462.02mm)
93.47"
(2,374.14mm)
3.46"
(87.88mm)
82nd Driest Driest since: 2017 1938
40th Wettest Wettest since: 2018 1910

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published April 2021, retrieved on April 12, 2021 from https://www.ncdc.noaa.gov/cag/