Climate at a Glance

Regional 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 October 2019. For more information, please see Climatological Rankings.


Northern Rockies and Plains Climate Region

Precipitation Rankings, April 2018

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
April 2018
1-Month
1.59"
(40.39mm)
1.74"
(44.20mm)
-0.15"
(-3.81mm)
49th Driest Driest since: 2015 1987
77th Wettest Wettest since: 2017 2016
Mar–Apr 2018
2-Month
2.97"
(75.44mm)
2.89"
(73.41mm)
0.08"
(2.03mm)
68th Driest Driest since: 2015 1926
58th Wettest Wettest since: 2017 1896
Ties: 1958, 1982
Feb–Apr 2018
3-Month
4.21"
(106.93mm)
3.69"
(93.73mm)
0.52"
(13.20mm)
96th Driest Driest since: 2015 1926
30th Wettest Wettest since: 2017 1986
Ties: 1999
Jan–Apr 2018
4-Month
4.96"
(125.98mm)
4.57"
(116.08mm)
0.39"
(9.90mm)
90th Driest Driest since: 2015 1926
36th Wettest Wettest since: 2017 1896
Ties: 1916
Dec 2017–Apr 2018
5-Month
5.93"
(150.62mm)
5.44"
(138.18mm)
0.49"
(12.44mm)
87th Driest Driest since: 2015 1931
38th Wettest Wettest since: 2017 1896
Ties: 1902
Nov 2017–Apr 2018
6-Month
6.89"
(175.01mm)
6.39"
(162.31mm)
0.50"
(12.70mm)
82nd Driest Driest since: 2015 1926
43rd Wettest Wettest since: 2017 1897
Oct 2017–Apr 2018
7-Month
8.15"
(207.01mm)
7.64"
(194.06mm)
0.51"
(12.95mm)
82nd Driest Driest since: 2015 1988
43rd Wettest Wettest since: 2017 1999
Ties: 1943
Sep 2017–Apr 2018
8-Month
10.50"
(266.70mm)
9.22"
(234.19mm)
1.28"
(32.51mm)
98th Driest Driest since: 2015 1988
27th Wettest Wettest since: 2017 2017
Aug 2017–Apr 2018
9-Month
12.46"
(316.48mm)
10.98"
(278.89mm)
1.48"
(37.59mm)
104th Driest Driest since: 2015 2013
21st Wettest Wettest since: 2017 1986
Jul 2017–Apr 2018
10-Month
13.77"
(349.76mm)
13.05"
(331.47mm)
0.72"
(18.29mm)
82nd Driest Driest since: 2015 2013
43rd Wettest Wettest since: 2017 1916
Jun 2017–Apr 2018
11-Month
15.48"
(393.19mm)
16.00"
(406.40mm)
-0.52"
(-13.21mm)
51st Driest Driest since: 2013 2013
74th Wettest Wettest since: 2017 1916
May 2017–Apr 2018
12-Month
17.61"
(447.29mm)
18.61"
(472.69mm)
-1.00"
(-25.40mm)
44th Driest Driest since: 2013 1937
81st Wettest Wettest since: 2017 1916
Nov 2016–Apr 2018
18-Month
25.51"
(647.95mm)
25.01"
(635.25mm)
0.50"
(12.70mm)
69th Driest Driest since: 2013 1937
55th Wettest Wettest since: 2017 1916
May 2016–Apr 2018
24-Month
38.67"
(982.22mm)
37.23"
(945.64mm)
1.44"
(36.58mm)
82nd Driest Driest since: 2014 1937
42nd Wettest Wettest since: 2017 2012
May 2015–Apr 2018
36-Month
60.90"
(1,546.86mm)
55.81"
(1,417.57mm)
5.09"
(129.29mm)
109th Driest Driest since: 2015 1937
14th Wettest Wettest since: 2017 2011
May 2014–Apr 2018
48-Month
80.08"
(2,034.03mm)
74.36"
(1,888.74mm)
5.72"
(145.29mm)
106th Driest Driest since: 2016 1937
16th Wettest Wettest since: 2017 2012
May 2013–Apr 2018
60-Month
102.00"
(2,590.80mm)
92.92"
(2,360.17mm)
9.08"
(230.63mm)
114th Driest Driest since: 2017 1938
7th Wettest Wettest since: 2012 2012

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published November 2019, retrieved on November 17, 2019 from https://www.ncdc.noaa.gov/cag/