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 January 1895. For more information, please see Climatological Rankings.


Contiguous U.S.

Precipitation Rankings, May 2018

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Amomaly Rank
(1895-2018)
Wettest/Driest
Since
Record
May 2018
1-Month
3.00"
(76.20mm)
2.91"
(73.91mm)
0.09"
(2.29mm)
75ᵗʰ Driest Driest since: 2014 1934
50ᵗʰ Wettest Wettest since: 2017 2015
Ties: 1902, 1944, 2008
Apr–May 2018
2-Month
5.47"
(138.94mm)
5.43"
(137.92mm)
0.04"
(1.02mm)
69ᵗʰ Driest Driest since: 2012 1934
56ᵗʰ Wettest Wettest since: 2017 1957
Ties: 1980
Mar–May 2018
3-Month
7.95"
(201.93mm)
7.94"
(201.68mm)
0.01"
(0.25mm)
61ˢᵗ Driest Driest since: 2012 1925
64ᵗʰ Wettest Wettest since: 2017 1957, 1991
Ties: 1968, 1981
Feb–May 2018
4-Month
10.84"
(275.34mm)
10.07"
(255.78mm)
0.77"
(19.56mm)
92ⁿᵈ Driest Driest since: 2014 1925
33ʳᵈ Wettest Wettest since: 2017 1983
Jan–May 2018
5-Month
12.70"
(322.58mm)
12.39"
(314.71mm)
0.31"
(7.87mm)
79ᵗʰ Driest Driest since: 2014 1934
46ᵗʰ Wettest Wettest since: 2017 1983
Dec 2017–May 2018
6-Month
14.30"
(363.22mm)
14.73"
(374.14mm)
-0.43"
(-10.92mm)
47ᵗʰ Driest Driest since: 2014 1931
77ᵗʰ Wettest Wettest since: 2017 1983
Nov 2017–May 2018
7-Month
15.92"
(404.37mm)
16.96"
(430.78mm)
-1.04"
(-26.41mm)
33ʳᵈ Driest Driest since: 2006 1934
91ˢᵗ Wettest Wettest since: 2017 1983
Oct 2017–May 2018
8-Month
18.52"
(470.41mm)
19.13"
(485.90mm)
-0.61"
(-15.49mm)
41ˢᵗ Driest Driest since: 2014 1934
83ʳᵈ Wettest Wettest since: 2017 1983
Sep 2017–May 2018
9-Month
20.79"
(528.07mm)
21.62"
(549.15mm)
-0.83"
(-21.08mm)
36ᵗʰ Driest Driest since: 2006 1934
88ᵗʰ Wettest Wettest since: 2017 1983
Ties: 1976
Aug 2017–May 2018
10-Month
24.20"
(614.68mm)
24.25"
(615.95mm)
-0.05"
(-1.27mm)
60ᵗʰ Driest Driest since: 2014 1918
64ᵗʰ Wettest Wettest since: 2017 1983
Jul 2017–May 2018
11-Month
27.00"
(685.80mm)
27.03"
(686.56mm)
-0.03"
(-0.76mm)
61ˢᵗ Driest Driest since: 2013 1931
63ʳᵈ Wettest Wettest since: 2017 1983
Jun 2017–May 2018
12-Month
30.07"
(763.78mm)
29.95"
(760.73mm)
0.12"
(3.05mm)
60ᵗʰ Driest Driest since: 2013 1934
64ᵗʰ Wettest Wettest since: 2017 1983
Dec 2016–May 2018
18-Month
47.68"
(1,211.07mm)
44.70"
(1,135.38mm)
2.98"
(75.69mm)
99ᵗʰ Driest Driest since: 2015 1931
24ᵗʰ Wettest Wettest since: 2017 1983
Jun 2016–May 2018
24-Month
63.42"
(1,610.87mm)
59.92"
(1,521.97mm)
3.50"
(88.90mm)
101ˢᵗ Driest Driest since: 2015 1931
22ⁿᵈ Wettest Wettest since: 2017 1974
Jun 2015–May 2018
36-Month
98.00"
(2,489.20mm)
89.88"
(2,282.95mm)
8.12"
(206.25mm)
114ᵗʰ Driest Driest since: 2016 1955
8ᵗʰ Wettest Wettest since: 2017 1975
Jun 2014–May 2018
48-Month
130.14"
(3,305.56mm)
119.78"
(3,042.41mm)
10.36"
(263.15mm)
115ᵗʰ Driest Driest since: 2016 1956
6ᵗʰ Wettest Wettest since: 2017 1998
Jun 2013–May 2018
60-Month
160.52"
(4,077.21mm)
149.64"
(3,800.86mm)
10.88"
(276.35mm)
115ᵗʰ Driest Driest since: 2017 1957
5ᵗʰ Wettest Wettest since: 1999 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published July 2018, retrieved on July 20, 2018 from https://www.ncdc.noaa.gov/cag/