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 June 2020. For more information, please see Climatological Rankings.


Montana

Precipitation Rankings, September 2019

View Period (Months):All1234567891011121824364860
Download: xml csv json
  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
September 2019
1-Month
3.58"
(90.93mm)
1.46"
(37.08mm)
2.12"
(53.85mm)
124th Driest Driest since: 2018 2012
2nd Wettest Wettest since: 1986 1986
Aug–Sep 2019
2-Month
5.11"
(129.79mm)
2.77"
(70.36mm)
2.34"
(59.43mm)
121st Driest Driest since: 2018 2012
5th Wettest Wettest since: 1986 1985
Jul–Sep 2019
3-Month
7.14"
(181.36mm)
4.35"
(110.49mm)
2.79"
(70.87mm)
122nd Driest Driest since: 2018 2012
4th Wettest Wettest since: 1993 1993
Jun–Sep 2019
4-Month
9.70"
(246.38mm)
7.22"
(183.39mm)
2.48"
(62.99mm)
119th Driest Driest since: 2018 1919
7th Wettest Wettest since: 1993 1993
May–Sep 2019
5-Month
12.37"
(314.20mm)
9.63"
(244.60mm)
2.74"
(69.60mm)
115th Driest Driest since: 2018 1919
11th Wettest Wettest since: 2013 1993
Apr–Sep 2019
6-Month
14.55"
(369.57mm)
11.14"
(282.96mm)
3.41"
(86.61mm)
117th Driest Driest since: 2018 1919
9th Wettest Wettest since: 2010 1993
Mar–Sep 2019
7-Month
15.18"
(385.57mm)
12.42"
(315.47mm)
2.76"
(70.10mm)
114th Driest Driest since: 2018 1919
12th Wettest Wettest since: 2011 1993
Feb–Sep 2019
8-Month
17.10"
(434.34mm)
13.48"
(342.39mm)
3.62"
(91.95mm)
119th Driest Driest since: 2018 1919
7th Wettest Wettest since: 2011 1993
Jan–Sep 2019
9-Month
18.14"
(460.76mm)
14.83"
(376.68mm)
3.31"
(84.08mm)
114th Driest Driest since: 2018 1919
12th Wettest Wettest since: 2011 1993
Dec 2018–Sep 2019
10-Month
19.13"
(485.90mm)
16.12"
(409.45mm)
3.01"
(76.45mm)
113th Driest Driest since: 2018 1919
12th Wettest Wettest since: 2011 1978
Nov 2018–Sep 2019
11-Month
20.57"
(522.48mm)
17.41"
(442.21mm)
3.16"
(80.27mm)
113th Driest Driest since: 2018 1919
12th Wettest Wettest since: 2011 1978
Oct 2018–Sep 2019
12-Month
21.91"
(556.51mm)
18.65"
(473.71mm)
3.26"
(82.80mm)
112th Driest Driest since: 2018 1919
13th Wettest Wettest since: 2011 1978
Apr 2018–Sep 2019
18-Month
33.40"
(848.36mm)
29.81"
(757.17mm)
3.59"
(91.19mm)
108th Driest Driest since: 2018 1919
17th Wettest Wettest since: 2014 2011
Oct 2017–Sep 2019
24-Month
42.79"
(1,086.87mm)
37.33"
(948.18mm)
5.46"
(138.69mm)
113th Driest Driest since: 2018 1937
11th Wettest Wettest since: 2011 2011
Oct 2016–Sep 2019
36-Month
61.05"
(1,550.67mm)
56.02"
(1,422.91mm)
5.03"
(127.76mm)
108th Driest Driest since: 2018 1937
15th Wettest Wettest since: 2011 1909
Oct 2015–Sep 2019
48-Month
81.07"
(2,059.18mm)
74.76"
(1,898.90mm)
6.31"
(160.28mm)
111th Driest Driest since: 2018 1937
11th Wettest Wettest since: 2014 1909
Ties: 1928
Oct 2014–Sep 2019
60-Month
97.84"
(2,485.14mm)
93.48"
(2,374.39mm)
4.36"
(110.75mm)
92nd Driest Driest since: 2018 1937
29th Wettest Wettest since: 2015 1978

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published July 2020, retrieved on August 5, 2020 from https://www.ncdc.noaa.gov/cag/