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


Montana

Precipitation Rankings, May 2012

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
May 2012
1-Month
2.42"
(61.47mm)
2.42"
(61.47mm)
0.00"
(0.00mm)
66th Driest Driest since: 2009 1937
60th Wettest Wettest since: 2011 1927
Apr–May 2012
2-Month
4.40"
(111.76mm)
3.93"
(99.82mm)
0.47"
(11.94mm)
82nd Driest Driest since: 2009 1934
44th Wettest Wettest since: 2011 2011
Ties: 1901, 1938
Mar–May 2012
3-Month
6.00"
(152.40mm)
5.20"
(132.08mm)
0.80"
(20.32mm)
88th Driest Driest since: 2009 1931
38th Wettest Wettest since: 2011 2011
Feb–May 2012
4-Month
6.95"
(176.53mm)
6.26"
(159.00mm)
0.69"
(17.53mm)
78th Driest Driest since: 2009 1931
48th Wettest Wettest since: 2011 2011
Jan–May 2012
5-Month
8.18"
(207.77mm)
7.61"
(193.29mm)
0.57"
(14.48mm)
76th Driest Driest since: 2009 1931
50th Wettest Wettest since: 2011 2011
Ties: 1997
Dec 2011–May 2012
6-Month
8.99"
(228.35mm)
8.90"
(226.06mm)
0.09"
(2.29mm)
57th Driest Driest since: 2009 1931
68th Wettest Wettest since: 2011 2011
Nov 2011–May 2012
7-Month
10.07"
(255.78mm)
10.19"
(258.83mm)
-0.12"
(-3.05mm)
51st Driest Driest since: 2010 1931
74th Wettest Wettest since: 2011 2011
Oct 2011–May 2012
8-Month
12.06"
(306.32mm)
11.44"
(290.58mm)
0.62"
(15.74mm)
69th Driest Driest since: 2009 1931
56th Wettest Wettest since: 2011 2011
Sep 2011–May 2012
9-Month
12.53"
(318.26mm)
12.89"
(327.41mm)
-0.36"
(-9.15mm)
46th Driest Driest since: 2005 1905
79th Wettest Wettest since: 2011 2011
Ties: 2003
Aug 2011–May 2012
10-Month
13.30"
(337.82mm)
14.22"
(361.19mm)
-0.92"
(-23.37mm)
40th Driest Driest since: 2004 1905
85th Wettest Wettest since: 2011 2011
Jul 2011–May 2012
11-Month
14.69"
(373.13mm)
15.80"
(401.32mm)
-1.11"
(-28.19mm)
36th Driest Driest since: 2004 1905
89th Wettest Wettest since: 2011 2011
Jun 2011–May 2012
12-Month
18.05"
(458.47mm)
18.65"
(473.71mm)
-0.60"
(-15.24mm)
47th Driest Driest since: 2008 1905
78th Wettest Wettest since: 2011 2011
Dec 2010–May 2012
18-Month
32.64"
(829.06mm)
27.58"
(700.53mm)
5.06"
(128.53mm)
119th Driest Driest since: 2010 1937
5th Wettest Wettest since: 2011 2011
Jun 2010–May 2012
24-Month
44.69"
(1,135.13mm)
37.34"
(948.44mm)
7.35"
(186.69mm)
121st Driest Driest since: 2010 1937
3rd Wettest Wettest since: 2011 1917
Jun 2009–May 2012
36-Month
63.39"
(1,610.11mm)
56.01"
(1,422.65mm)
7.38"
(187.46mm)
118th Driest Driest since: 2010 1937
5th Wettest Wettest since: 2011 1917
Jun 2008–May 2012
48-Month
81.65"
(2,073.91mm)
74.74"
(1,898.40mm)
6.91"
(175.51mm)
112th Driest Driest since: 2011 1937
10th Wettest Wettest since: 1999 1899, 1910
Jun 2007–May 2012
60-Month
98.79"
(2,509.27mm)
93.47"
(2,374.14mm)
5.32"
(135.13mm)
101st Driest Driest since: 2010 1938
20th Wettest Wettest since: 2011 1910

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published August 2019, retrieved on August 25, 2019 from https://www.ncdc.noaa.gov/cag/