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


Montana

Precipitation Rankings, May 1991

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
May 1991
1-Month
3.09"
(78.49mm)
2.42"
(61.47mm)
0.67"
(17.02mm)
96th Driest Driest since: 1990 1937
30th Wettest Wettest since: 1987 1927
Apr–May 1991
2-Month
5.84"
(148.34mm)
3.93"
(99.82mm)
1.91"
(48.52mm)
118th Driest Driest since: 1990 1934
8th Wettest Wettest since: 1978 2011
Mar–May 1991
3-Month
7.25"
(184.15mm)
5.20"
(132.08mm)
2.05"
(52.07mm)
120th Driest Driest since: 1990 1931
6th Wettest Wettest since: 1975 2011
Feb–May 1991
4-Month
7.92"
(201.17mm)
6.26"
(159.00mm)
1.66"
(42.17mm)
109th Driest Driest since: 1990 1931
17th Wettest Wettest since: 1982 2011
Jan–May 1991
5-Month
8.98"
(228.09mm)
7.61"
(193.29mm)
1.37"
(34.80mm)
103rd Driest Driest since: 1990 1931
23rd Wettest Wettest since: 1989 2011
Dec 1990–May 1991
6-Month
10.18"
(258.57mm)
8.90"
(226.06mm)
1.28"
(32.51mm)
100th Driest Driest since: 1990 1931
25th Wettest Wettest since: 1989 2011
Ties: 1942
Nov 1990–May 1991
7-Month
11.68"
(296.67mm)
10.19"
(258.83mm)
1.49"
(37.84mm)
98th Driest Driest since: 1990 1931
27th Wettest Wettest since: 1989 2011
Oct 1990–May 1991
8-Month
13.03"
(330.96mm)
11.44"
(290.58mm)
1.59"
(40.38mm)
103rd Driest Driest since: 1990 1931
22nd Wettest Wettest since: 1982 2011
Sep 1990–May 1991
9-Month
13.25"
(336.55mm)
12.89"
(327.41mm)
0.36"
(9.14mm)
62nd Driest Driest since: 1988 1905
63rd Wettest Wettest since: 1990 2011
Ties: 1976
Aug 1990–May 1991
10-Month
14.94"
(379.48mm)
14.22"
(361.19mm)
0.72"
(18.29mm)
75th Driest Driest since: 1989 1905
50th Wettest Wettest since: 1990 2011
Jul 1990–May 1991
11-Month
16.33"
(414.78mm)
15.80"
(401.32mm)
0.53"
(13.46mm)
70th Driest Driest since: 1989 1905
55th Wettest Wettest since: 1990 2011
Jun 1990–May 1991
12-Month
18.06"
(458.72mm)
18.66"
(473.96mm)
-0.60"
(-15.24mm)
48th Driest Driest since: 1989 1905
77th Wettest Wettest since: 1990 2011
Ties: 1953
Dec 1989–May 1991
18-Month
27.54"
(699.52mm)
27.58"
(700.53mm)
-0.04"
(-1.01mm)
58th Driest Driest since: 1989 1937
66th Wettest Wettest since: 1990 2011
Jun 1989–May 1991
24-Month
37.63"
(955.80mm)
37.34"
(948.44mm)
0.29"
(7.36mm)
65th Driest Driest since: 1990 1937
59th Wettest Wettest since: 1987 1917
Jun 1988–May 1991
36-Month
54.72"
(1,389.89mm)
56.01"
(1,422.65mm)
-1.29"
(-32.76mm)
40th Driest Driest since: 1990 1937
83rd Wettest Wettest since: 1988 1917
Jun 1987–May 1991
48-Month
70.68"
(1,795.27mm)
74.74"
(1,898.40mm)
-4.06"
(-103.13mm)
24th Driest Driest since: 1963 1937
98th Wettest Wettest since: 1990 1899, 1910
Jun 1986–May 1991
60-Month
89.64"
(2,276.86mm)
93.47"
(2,374.14mm)
-3.83"
(-97.28mm)
28th Driest Driest since: 1989 1938
93rd Wettest Wettest since: 1990 1910

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2019, retrieved on October 16, 2019 from https://www.ncdc.noaa.gov/cag/