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.


Washington

Precipitation Rankings, May 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
May 2018
1-Month
1.08"
(27.43mm)
2.25"
(57.15mm)
-1.17"
(-29.72mm)
8th Driest Driest since: 1992 1924
118th Wettest Wettest since: 2017 1948
Apr–May 2018
2-Month
6.56"
(166.62mm)
5.08"
(129.03mm)
1.48"
(37.59mm)
105th Driest Driest since: 2016 1924
21st Wettest Wettest since: 2017 1948
Mar–May 2018
3-Month
9.83"
(249.68mm)
9.23"
(234.44mm)
0.60"
(15.24mm)
79th Driest Driest since: 2015 1924
47th Wettest Wettest since: 2017 2011
Ties: 1981
Feb–May 2018
4-Month
14.21"
(360.93mm)
13.96"
(354.58mm)
0.25"
(6.35mm)
73rd Driest Driest since: 2015 1973
53rd Wettest Wettest since: 2017 2017
Jan–May 2018
5-Month
21.95"
(557.53mm)
20.03"
(508.76mm)
1.92"
(48.77mm)
85th Driest Driest since: 2015 1985
41st Wettest Wettest since: 2017 1961
Dec 2017–May 2018
6-Month
27.04"
(686.82mm)
26.54"
(674.12mm)
0.50"
(12.70mm)
69th Driest Driest since: 2015 1985
56th Wettest Wettest since: 2017 1997
Nov 2017–May 2018
7-Month
35.90"
(911.86mm)
32.67"
(829.82mm)
3.23"
(82.04mm)
84th Driest Driest since: 2015 1977
41st Wettest Wettest since: 2017 1974
Oct 2017–May 2018
8-Month
40.96"
(1,040.38mm)
36.36"
(923.54mm)
4.60"
(116.84mm)
95th Driest Driest since: 2015 1977
30th Wettest Wettest since: 2017 1974
Sep 2017–May 2018
9-Month
42.31"
(1,074.67mm)
38.32"
(973.33mm)
3.99"
(101.34mm)
93rd Driest Driest since: 2015 1977
32nd Wettest Wettest since: 2017 1974
Aug 2017–May 2018
10-Month
42.45"
(1,078.23mm)
39.35"
(999.49mm)
3.10"
(78.74mm)
83rd Driest Driest since: 2015 1977
42nd Wettest Wettest since: 2017 1974
Jul 2017–May 2018
11-Month
42.49"
(1,079.25mm)
40.24"
(1,022.10mm)
2.25"
(57.15mm)
76th Driest Driest since: 2015 1977
49th Wettest Wettest since: 2017 1974
Jun 2017–May 2018
12-Month
44.04"
(1,118.62mm)
42.13"
(1,070.10mm)
1.91"
(48.52mm)
76th Driest Driest since: 2015 1977
49th Wettest Wettest since: 2017 1974
Dec 2016–May 2018
18-Month
75.61"
(1,920.49mm)
68.67"
(1,744.22mm)
6.94"
(176.27mm)
93rd Driest Driest since: 2016 1930
31st Wettest Wettest since: 2017 1997
Jun 2016–May 2018
24-Month
97.79"
(2,483.87mm)
84.30"
(2,141.22mm)
13.49"
(342.65mm)
115th Driest Driest since: 2016 1930
9th Wettest Wettest since: 2017 1997
Jun 2015–May 2018
36-Month
146.16"
(3,712.46mm)
126.40"
(3,210.56mm)
19.76"
(501.90mm)
117th Driest Driest since: 2017 1931
6th Wettest Wettest since: 1999 1998
Jun 2014–May 2018
48-Month
187.17"
(4,754.12mm)
168.49"
(4,279.65mm)
18.68"
(474.47mm)
114th Driest Driest since: 2017 1931
8th Wettest Wettest since: 2000 1999
Jun 2013–May 2018
60-Month
229.83"
(5,837.68mm)
210.48"
(5,346.19mm)
19.35"
(491.49mm)
108th Driest Driest since: 2016 1930
13th Wettest Wettest since: 2017 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2019, retrieved on October 18, 2019 from https://www.ncdc.noaa.gov/cag/