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


Montana

Precipitation Rankings, October 1940

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
October 1940
1-Month
1.65"
(41.91mm)
1.25"
(31.75mm)
0.40"
(10.16mm)
94th Driest Driest since: 1939 1987
32nd Wettest Wettest since: 1938 2016
Ties: 1949
Sep–Oct 1940
2-Month
3.71"
(94.23mm)
2.70"
(68.58mm)
1.01"
(25.65mm)
108th Driest Driest since: 1939 1904
18th Wettest Wettest since: 1925 2016
Aug–Oct 1940
3-Month
4.08"
(103.63mm)
4.01"
(101.85mm)
0.07"
(1.78mm)
69th Driest Driest since: 1939 1904
57th Wettest Wettest since: 1933 1985
Ties: 1984
Jul–Oct 1940
4-Month
5.88"
(149.35mm)
5.60"
(142.24mm)
0.28"
(7.11mm)
75th Driest Driest since: 1939 1904
51st Wettest Wettest since: 1938 1993
Ties: 1974
Jun–Oct 1940
5-Month
8.36"
(212.34mm)
8.46"
(214.88mm)
-0.10"
(-2.54mm)
59th Driest Driest since: 1939 1904
67th Wettest Wettest since: 1938 1993
May–Oct 1940
6-Month
9.67"
(245.62mm)
10.88"
(276.35mm)
-1.21"
(-30.73mm)
36th Driest Driest since: 1937 1904
90th Wettest Wettest since: 1939 1993
Apr–Oct 1940
7-Month
12.52"
(318.01mm)
12.39"
(314.71mm)
0.13"
(3.30mm)
64th Driest Driest since: 1939 1904
62nd Wettest Wettest since: 1938 1993
Mar–Oct 1940
8-Month
13.98"
(355.09mm)
13.66"
(346.96mm)
0.32"
(8.13mm)
69th Driest Driest since: 1939 1919
57th Wettest Wettest since: 1938 1975
Feb–Oct 1940
9-Month
15.92"
(404.37mm)
14.72"
(373.89mm)
1.20"
(30.48mm)
83rd Driest Driest since: 1939 1931
43rd Wettest Wettest since: 1938 1975
Jan–Oct 1940
10-Month
16.98"
(431.29mm)
16.07"
(408.18mm)
0.91"
(23.11mm)
73rd Driest Driest since: 1939 1931
53rd Wettest Wettest since: 1938 1975
Dec 1939–Oct 1940
11-Month
18.28"
(464.31mm)
17.36"
(440.94mm)
0.92"
(23.37mm)
75th Driest Driest since: 1939 1931
50th Wettest Wettest since: 1938 1975
Nov 1939–Oct 1940
12-Month
18.54"
(470.92mm)
18.65"
(473.71mm)
-0.11"
(-2.79mm)
53rd Driest Driest since: 1939 1931
72nd Wettest Wettest since: 1938 2011
May 1939–Oct 1940
18-Month
28.46"
(722.88mm)
29.54"
(750.32mm)
-1.08"
(-27.44mm)
38th Driest Driest since: 1937 1931
87th Wettest Wettest since: 1939 2011
Nov 1938–Oct 1940
24-Month
34.54"
(877.32mm)
37.33"
(948.18mm)
-2.79"
(-70.86mm)
23rd Driest Driest since: 1937 1936
101st Wettest Wettest since: 1939 1975
Nov 1937–Oct 1940
36-Month
55.26"
(1,403.60mm)
56.01"
(1,422.65mm)
-0.75"
(-19.05mm)
47th Driest Driest since: 1939 1937
76th Wettest Wettest since: 1929 1898
Nov 1936–Oct 1940
48-Month
70.52"
(1,791.21mm)
74.75"
(1,898.65mm)
-4.23"
(-107.44mm)
23rd Driest Driest since: 1939 1937
99th Wettest Wettest since: 1930 1899
Nov 1935–Oct 1940
60-Month
84.19"
(2,138.43mm)
93.47"
(2,374.14mm)
-9.28"
(-235.71mm)
11th Driest Driest since: 1939 1937
110th Wettest Wettest since: 1932 1911

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2020, retrieved on January 21, 2020 from https://www.ncdc.noaa.gov/cag/