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 1981

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
May 1981
1-Month
4.76"
(120.90mm)
2.42"
(61.47mm)
2.34"
(59.43mm)
122nd Driest Driest since: 1980 1937
4th Wettest Wettest since: 1927 1927
Apr–May 1981
2-Month
5.79"
(147.07mm)
3.93"
(99.82mm)
1.86"
(47.25mm)
116th Driest Driest since: 1980 1934
10th Wettest Wettest since: 1978 2011
Mar–May 1981
3-Month
7.17"
(182.12mm)
5.20"
(132.08mm)
1.97"
(50.04mm)
117th Driest Driest since: 1980 1931
9th Wettest Wettest since: 1978 2011
Feb–May 1981
4-Month
8.21"
(208.53mm)
6.26"
(159.00mm)
1.95"
(49.53mm)
114th Driest Driest since: 1980 1931
12th Wettest Wettest since: 1978 2011
Jan–May 1981
5-Month
8.73"
(221.74mm)
7.61"
(193.29mm)
1.12"
(28.45mm)
98th Driest Driest since: 1980 1931
28th Wettest Wettest since: 1978 2011
Dec 1980–May 1981
6-Month
10.27"
(260.86mm)
8.90"
(226.06mm)
1.37"
(34.80mm)
103rd Driest Driest since: 1980 1931
22nd Wettest Wettest since: 1978 2011
Nov 1980–May 1981
7-Month
11.25"
(285.75mm)
10.19"
(258.83mm)
1.06"
(26.92mm)
90th Driest Driest since: 1980 1931
35th Wettest Wettest since: 1978 2011
Oct 1980–May 1981
8-Month
12.92"
(328.17mm)
11.44"
(290.58mm)
1.48"
(37.59mm)
102nd Driest Driest since: 1980 1931
23rd Wettest Wettest since: 1978 2011
Ties: 1912
Sep 1980–May 1981
9-Month
14.42"
(366.27mm)
12.90"
(327.66mm)
1.52"
(38.61mm)
98th Driest Driest since: 1980 1905
27th Wettest Wettest since: 1978 2011
Aug 1980–May 1981
10-Month
16.15"
(410.21mm)
14.22"
(361.19mm)
1.93"
(49.02mm)
105th Driest Driest since: 1980 1905
20th Wettest Wettest since: 1978 2011
Jul 1980–May 1981
11-Month
17.11"
(434.59mm)
15.80"
(401.32mm)
1.31"
(33.27mm)
90th Driest Driest since: 1980 1905
35th Wettest Wettest since: 1979 2011
Jun 1980–May 1981
12-Month
20.07"
(509.78mm)
18.65"
(473.71mm)
1.42"
(36.07mm)
90th Driest Driest since: 1980 1905
35th Wettest Wettest since: 1978 2011
Dec 1979–May 1981
18-Month
29.60"
(751.84mm)
27.58"
(700.53mm)
2.02"
(51.31mm)
92nd Driest Driest since: 1980 1937
32nd Wettest Wettest since: 1979 2011
Jun 1979–May 1981
24-Month
35.33"
(897.38mm)
37.34"
(948.44mm)
-2.01"
(-51.06mm)
28th Driest Driest since: 1980 1937
96th Wettest Wettest since: 1979 1917
Jun 1978–May 1981
36-Month
55.26"
(1,403.60mm)
56.01"
(1,422.65mm)
-0.75"
(-19.05mm)
49th Driest Driest since: 1973 1937
74th Wettest Wettest since: 1980 1917
Jun 1977–May 1981
48-Month
78.12"
(1,984.25mm)
74.74"
(1,898.40mm)
3.38"
(85.85mm)
81st Driest Driest since: 1980 1937
41st Wettest Wettest since: 1979 1899, 1910
Jun 1976–May 1981
60-Month
94.50"
(2,400.30mm)
93.47"
(2,374.14mm)
1.03"
(26.16mm)
61st Driest Driest since: 1965 1938
60th Wettest Wettest since: 1980 1910

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2019, retrieved on October 19, 2019 from https://www.ncdc.noaa.gov/cag/