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


Montana

Precipitation Rankings, September 1939

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
September 1939
1-Month
1.03"
(26.16mm)
1.46"
(37.08mm)
-0.43"
(-10.92mm)
39th Driest Driest since: 1938 2012
87th Wettest Wettest since: 1938 1986
Ties: 1938, 1993
Aug–Sep 1939
2-Month
1.79"
(45.47mm)
2.77"
(70.36mm)
-0.98"
(-24.89mm)
20th Driest Driest since: 1935 2012
106th Wettest Wettest since: 1938 1985
Ties: 1949, 2003
Jul–Sep 1939
3-Month
2.60"
(66.04mm)
4.35"
(110.49mm)
-1.75"
(-44.45mm)
8th Driest Driest since: 1934 2012
118th Wettest Wettest since: 1938 1993
Jun–Sep 1939
4-Month
6.65"
(168.91mm)
7.22"
(183.39mm)
-0.57"
(-14.48mm)
50th Driest Driest since: 1936 1919
76th Wettest Wettest since: 1938 1993
May–Sep 1939
5-Month
8.83"
(224.28mm)
9.63"
(244.60mm)
-0.80"
(-20.32mm)
44th Driest Driest since: 1937 1919
82nd Wettest Wettest since: 1938 1993
Apr–Sep 1939
6-Month
9.85"
(250.19mm)
11.14"
(282.96mm)
-1.29"
(-32.77mm)
31st Driest Driest since: 1937 1919
95th Wettest Wettest since: 1938 1993
Mar–Sep 1939
7-Month
10.85"
(275.59mm)
12.42"
(315.47mm)
-1.57"
(-39.88mm)
29th Driest Driest since: 1937 1919
97th Wettest Wettest since: 1938 1993
Feb–Sep 1939
8-Month
11.88"
(301.75mm)
13.48"
(342.39mm)
-1.60"
(-40.64mm)
33rd Driest Driest since: 1937 1919
93rd Wettest Wettest since: 1938 1993
Jan–Sep 1939
9-Month
12.78"
(324.61mm)
14.83"
(376.68mm)
-2.05"
(-52.07mm)
25th Driest Driest since: 1937 1919
101st Wettest Wettest since: 1938 1993
Dec 1938–Sep 1939
10-Month
13.55"
(344.17mm)
16.12"
(409.45mm)
-2.57"
(-65.28mm)
14th Driest Driest since: 1936 1919
111th Wettest Wettest since: 1938 1978
Nov 1938–Sep 1939
11-Month
14.91"
(378.71mm)
17.41"
(442.21mm)
-2.50"
(-63.50mm)
21st Driest Driest since: 1937 1919
104th Wettest Wettest since: 1938 1978
Oct 1938–Sep 1939
12-Month
17.03"
(432.56mm)
18.65"
(473.71mm)
-1.62"
(-41.15mm)
32nd Driest Driest since: 1937 1919
93rd Wettest Wettest since: 1938 1978
Apr 1938–Sep 1939
18-Month
28.94"
(735.08mm)
29.81"
(757.17mm)
-0.87"
(-22.09mm)
39th Driest Driest since: 1938 1919
86th Wettest Wettest since: 1933 2011
Ties: 1958
Oct 1937–Sep 1939
24-Month
36.77"
(933.96mm)
37.33"
(948.18mm)
-0.56"
(-14.22mm)
48th Driest Driest since: 1938 1937
76th Wettest Wettest since: 1928 2011
Oct 1936–Sep 1939
36-Month
51.67"
(1,312.42mm)
56.02"
(1,422.91mm)
-4.35"
(-110.49mm)
23rd Driest Driest since: 1938 1937
100th Wettest Wettest since: 1934 1909
Oct 1935–Sep 1939
48-Month
65.55"
(1,664.97mm)
74.76"
(1,898.90mm)
-9.21"
(-233.93mm)
6th Driest Driest since: 1938 1937
116th Wettest Wettest since: 1935 1909
Oct 1934–Sep 1939
60-Month
80.61"
(2,047.49mm)
93.48"
(2,374.39mm)
-12.87"
(-326.90mm)
3rd Driest Driest since: 1938 1937
118th Wettest Wettest since: 1936 1978

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published May 2020, retrieved on June 3, 2020 from https://www.ncdc.noaa.gov/cag/