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


Montana

Precipitation Rankings, September 1946

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 1946
1-Month
2.66"
(67.56mm)
1.46"
(37.08mm)
1.20"
(30.48mm)
117th Driest Driest since: 1945 2012
9th Wettest Wettest since: 1941 1986
Aug–Sep 1946
2-Month
3.55"
(90.17mm)
2.77"
(70.36mm)
0.78"
(19.81mm)
103rd Driest Driest since: 1945 2012
23rd Wettest Wettest since: 1941 1985
Jul–Sep 1946
3-Month
5.74"
(145.80mm)
4.35"
(110.49mm)
1.39"
(35.31mm)
106th Driest Driest since: 1945 2012
20th Wettest Wettest since: 1941 1993
Jun–Sep 1946
4-Month
8.33"
(211.58mm)
7.22"
(183.39mm)
1.11"
(28.19mm)
102nd Driest Driest since: 1945 1919
24th Wettest Wettest since: 1944 1993
May–Sep 1946
5-Month
10.67"
(271.02mm)
9.63"
(244.60mm)
1.04"
(26.42mm)
90th Driest Driest since: 1945 1919
36th Wettest Wettest since: 1944 1993
Apr–Sep 1946
6-Month
11.32"
(287.53mm)
11.14"
(282.96mm)
0.18"
(4.57mm)
69th Driest Driest since: 1945 1919
57th Wettest Wettest since: 1944 1993
Mar–Sep 1946
7-Month
12.71"
(322.83mm)
12.42"
(315.47mm)
0.29"
(7.36mm)
67th Driest Driest since: 1945 1919
59th Wettest Wettest since: 1944 1993
Feb–Sep 1946
8-Month
13.42"
(340.87mm)
13.48"
(342.39mm)
-0.06"
(-1.52mm)
58th Driest Driest since: 1945 1919
68th Wettest Wettest since: 1944 1993
Jan–Sep 1946
9-Month
14.36"
(364.74mm)
14.83"
(376.68mm)
-0.47"
(-11.94mm)
52nd Driest Driest since: 1945 1919
74th Wettest Wettest since: 1944 1993
Dec 1945–Sep 1946
10-Month
15.98"
(405.89mm)
16.12"
(409.45mm)
-0.14"
(-3.56mm)
57th Driest Driest since: 1945 1919
68th Wettest Wettest since: 1944 1978
Ties: 1996
Nov 1945–Sep 1946
11-Month
17.27"
(438.66mm)
17.41"
(442.21mm)
-0.14"
(-3.55mm)
58th Driest Driest since: 1945 1919
67th Wettest Wettest since: 1944 1978
Oct 1945–Sep 1946
12-Month
18.34"
(465.84mm)
18.65"
(473.71mm)
-0.31"
(-7.87mm)
55th Driest Driest since: 1945 1919
70th Wettest Wettest since: 1944 1978
Apr 1945–Sep 1946
18-Month
29.00"
(736.60mm)
29.81"
(757.17mm)
-0.81"
(-20.57mm)
43rd Driest Driest since: 1940 1919
82nd Wettest Wettest since: 1945 2011
Oct 1944–Sep 1946
24-Month
34.43"
(874.52mm)
37.33"
(948.18mm)
-2.90"
(-73.66mm)
21st Driest Driest since: 1937 1937
103rd Wettest Wettest since: 1945 2011
Oct 1943–Sep 1946
36-Month
53.68"
(1,363.47mm)
56.02"
(1,422.91mm)
-2.34"
(-59.44mm)
31st Driest Driest since: 1939 1937
92nd Wettest Wettest since: 1945 1909
Oct 1942–Sep 1946
48-Month
74.11"
(1,882.39mm)
74.76"
(1,898.90mm)
-0.65"
(-16.51mm)
43rd Driest Driest since: 1940 1937
79th Wettest Wettest since: 1945 1909
Oct 1941–Sep 1946
60-Month
94.65"
(2,404.11mm)
93.48"
(2,374.39mm)
1.17"
(29.72mm)
60th Driest Driest since: 1941 1937
61st Wettest Wettest since: 1945 1978

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published March 2020, retrieved on April 4, 2020 from https://www.ncdc.noaa.gov/cag/