Climate at a Glance

National 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.


Contiguous U.S.

Precipitation Rankings, May 2015

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 2015
1-Month
4.44"
(112.78mm)
2.91"
(73.91mm)
1.53"
(38.87mm)
124th Driest Driest since: 2014 1934
2nd Wettest Wettest to Date 2019
Apr–May 2015
2-Month
7.27"
(184.66mm)
5.43"
(137.92mm)
1.84"
(46.74mm)
123rd Driest Driest since: 2014 1934
3rd Wettest Wettest since: 1957 1957
Mar–May 2015
3-Month
9.40"
(238.76mm)
7.94"
(201.68mm)
1.46"
(37.08mm)
114th Driest Driest since: 2014 1925
12th Wettest Wettest since: 2011 1957, 1991
Feb–May 2015
4-Month
11.14"
(282.96mm)
10.07"
(255.78mm)
1.07"
(27.18mm)
104th Driest Driest since: 2014 1925
22nd Wettest Wettest since: 2011 2019
Jan–May 2015
5-Month
12.97"
(329.44mm)
12.39"
(314.71mm)
0.58"
(14.73mm)
88th Driest Driest since: 2014 1934
38th Wettest Wettest since: 2011 2019
Dec 2014–May 2015
6-Month
15.55"
(394.97mm)
14.73"
(374.14mm)
0.82"
(20.83mm)
87th Driest Driest since: 2014 1931
38th Wettest Wettest since: 2011 2019
Nov 2014–May 2015
7-Month
17.68"
(449.07mm)
16.96"
(430.78mm)
0.72"
(18.29mm)
87th Driest Driest since: 2014 1934
38th Wettest Wettest since: 2011 1983
Oct 2014–May 2015
8-Month
20.10"
(510.54mm)
19.13"
(485.90mm)
0.97"
(24.64mm)
90th Driest Driest since: 2014 1934
35th Wettest Wettest since: 2010 2019
Ties: 1969
Sep 2014–May 2015
9-Month
22.74"
(577.60mm)
21.62"
(549.15mm)
1.12"
(28.45mm)
87th Driest Driest since: 2014 1934
38th Wettest Wettest since: 2011 2019
Aug 2014–May 2015
10-Month
25.87"
(657.10mm)
24.25"
(615.95mm)
1.62"
(41.15mm)
99th Driest Driest since: 2014 1918
26th Wettest Wettest since: 2010 2019
Jul 2014–May 2015
11-Month
28.47"
(723.14mm)
27.03"
(686.56mm)
1.44"
(36.58mm)
92nd Driest Driest since: 2014 1931
33rd Wettest Wettest since: 2011 2019
Jun 2014–May 2015
12-Month
32.14"
(816.36mm)
29.95"
(760.73mm)
2.19"
(55.63mm)
103rd Driest Driest since: 2014 1934
22nd Wettest Wettest since: 2010 2019
Dec 2013–May 2015
18-Month
46.03"
(1,169.16mm)
44.70"
(1,135.38mm)
1.33"
(33.78mm)
87th Driest Driest since: 2014 1931
37th Wettest Wettest since: 2011 2019
Jun 2013–May 2015
24-Month
62.52"
(1,588.01mm)
59.92"
(1,521.97mm)
2.60"
(66.04mm)
94th Driest Driest since: 2014 1931
30th Wettest Wettest since: 2011 1974
Jun 2012–May 2015
36-Month
90.87"
(2,308.10mm)
89.88"
(2,282.95mm)
0.99"
(25.15mm)
71st Driest Driest since: 2014 1955
52nd Wettest Wettest since: 2012 2019
Jun 2011–May 2015
48-Month
119.12"
(3,025.65mm)
119.78"
(3,042.41mm)
-0.66"
(-16.76mm)
53rd Driest Driest since: 2014 1956
69th Wettest Wettest since: 2013 2019
Jun 2010–May 2015
60-Month
151.25"
(3,841.75mm)
149.64"
(3,800.86mm)
1.61"
(40.89mm)
66th Driest Driest since: 2005 1957
55th Wettest Wettest since: 2014 2019

Citing This Page

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