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


Contiguous U.S.

Precipitation Rankings, May 2018

View Period (Months):All1234567891011121824364860
Download: xml csv json
  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
May 2018
1-Month
3.02"
(76.71mm)
2.91"
(73.91mm)
0.11"
(2.80mm)
76th Driest Driest since: 2014 1934
50th Wettest Wettest since: 2017 2015
Apr–May 2018
2-Month
5.48"
(139.19mm)
5.43"
(137.92mm)
0.05"
(1.27mm)
69th Driest Driest since: 2012 1934
57th Wettest Wettest since: 2017 1957
Mar–May 2018
3-Month
7.95"
(201.93mm)
7.94"
(201.68mm)
0.01"
(0.25mm)
61st Driest Driest since: 2012 1925
65th Wettest Wettest since: 2017 1957, 1991
Ties: 1968, 1981
Feb–May 2018
4-Month
10.83"
(275.08mm)
10.07"
(255.78mm)
0.76"
(19.30mm)
92nd Driest Driest since: 2014 1925
34th Wettest Wettest since: 2017 2019
Jan–May 2018
5-Month
12.68"
(322.07mm)
12.39"
(314.71mm)
0.29"
(7.36mm)
77th Driest Driest since: 2014 1934
49th Wettest Wettest since: 2017 2019
Ties: 1946
Dec 2017–May 2018
6-Month
14.27"
(362.46mm)
14.73"
(374.14mm)
-0.46"
(-11.68mm)
47th Driest Driest since: 2014 1931
78th Wettest Wettest since: 2017 2019
Nov 2017–May 2018
7-Month
15.89"
(403.61mm)
16.96"
(430.78mm)
-1.07"
(-27.17mm)
33rd Driest Driest since: 2006 1934
92nd Wettest Wettest since: 2017 1983
Oct 2017–May 2018
8-Month
18.49"
(469.65mm)
19.13"
(485.90mm)
-0.64"
(-16.25mm)
41st Driest Driest since: 2014 1934
84th Wettest Wettest since: 2017 2019
Sep 2017–May 2018
9-Month
20.76"
(527.30mm)
21.62"
(549.15mm)
-0.86"
(-21.85mm)
36th Driest Driest since: 2006 1934
89th Wettest Wettest since: 2017 2019
Aug 2017–May 2018
10-Month
24.18"
(614.17mm)
24.25"
(615.95mm)
-0.07"
(-1.78mm)
60th Driest Driest since: 2014 1918
65th Wettest Wettest since: 2017 2019
Jul 2017–May 2018
11-Month
26.98"
(685.29mm)
27.03"
(686.56mm)
-0.05"
(-1.27mm)
59th Driest Driest since: 2013 1931
66th Wettest Wettest since: 2017 2019
Ties: 1899, 1965
Jun 2017–May 2018
12-Month
30.05"
(763.27mm)
29.95"
(760.73mm)
0.10"
(2.54mm)
59th Driest Driest since: 2013 1934
66th Wettest Wettest since: 2017 2019
Ties: 1899
Dec 2016–May 2018
18-Month
47.71"
(1,211.83mm)
44.70"
(1,135.38mm)
3.01"
(76.45mm)
101st Driest Driest since: 2015 1931
23rd Wettest Wettest since: 2017 2019
Ties: 1996
Jun 2016–May 2018
24-Month
63.45"
(1,611.63mm)
59.92"
(1,521.97mm)
3.53"
(89.66mm)
102nd Driest Driest since: 2015 1931
22nd Wettest Wettest since: 2017 1974
Jun 2015–May 2018
36-Month
98.03"
(2,489.96mm)
89.88"
(2,282.95mm)
8.15"
(207.01mm)
114th Driest Driest since: 2016 1955
9th Wettest Wettest since: 2017 2019
Jun 2014–May 2018
48-Month
130.17"
(3,306.32mm)
119.78"
(3,042.41mm)
10.39"
(263.91mm)
115th Driest Driest since: 2016 1956
7th Wettest Wettest since: 2017 2019
Jun 2013–May 2018
60-Month
160.55"
(4,077.97mm)
149.64"
(3,800.86mm)
10.91"
(277.11mm)
115th Driest Driest since: 2017 1957
6th Wettest Wettest since: 1999 2019

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published July 2019, retrieved on July 23, 2019 from https://www.ncdc.noaa.gov/cag/