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 August 2022. For more information, please see Climatological Rankings.


Washington

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
(1895-2022)
Wettest/Driest
Since
Record
April 2018
1-Month
5.47"
(138.94mm)
2.83"
(71.88mm)
2.64"
(67.06mm)
126th Driest Driest since: 2017 1956
3rd Wettest Wettest since: 1996 1937
Mar–Apr 2018
2-Month
8.76"
(222.50mm)
6.98"
(177.29mm)
1.78"
(45.21mm)
106th Driest Driest since: 2016 1926
23rd Wettest Wettest since: 2017 2017
Ties: 1960
Feb–Apr 2018
3-Month
13.15"
(334.01mm)
11.72"
(297.69mm)
1.43"
(36.32mm)
95th Driest Driest since: 2015 1911
34th Wettest Wettest since: 2017 2017
Ties: 1955
Jan–Apr 2018
4-Month
20.89"
(530.61mm)
17.78"
(451.61mm)
3.11"
(79.00mm)
103rd Driest Driest since: 2016 1985
26th Wettest Wettest since: 2017 1961
Dec 2017–Apr 2018
5-Month
25.98"
(659.89mm)
24.29"
(616.97mm)
1.69"
(42.92mm)
85th Driest Driest since: 2015 1977
43rd Wettest Wettest since: 2017 1997
Nov 2017–Apr 2018
6-Month
34.84"
(884.94mm)
30.43"
(772.92mm)
4.41"
(112.02mm)
100th Driest Driest since: 2015 1977
28th Wettest Wettest since: 2017 1974
Oct 2017–Apr 2018
7-Month
39.90"
(1,013.46mm)
34.12"
(866.65mm)
5.78"
(146.81mm)
107th Driest Driest since: 2015 1977
21st Wettest Wettest since: 2017 1974
Sep 2017–Apr 2018
8-Month
41.25"
(1,047.75mm)
36.07"
(916.18mm)
5.18"
(131.57mm)
103rd Driest Driest since: 2015 1977
25th Wettest Wettest since: 2017 1974
Aug 2017–Apr 2018
9-Month
41.39"
(1,051.31mm)
37.10"
(942.34mm)
4.29"
(108.97mm)
94th Driest Driest since: 2015 1977
34th Wettest Wettest since: 2017 1974
Jul 2017–Apr 2018
10-Month
41.43"
(1,052.32mm)
38.00"
(965.20mm)
3.43"
(87.12mm)
88th Driest Driest since: 2015 1977
40th Wettest Wettest since: 2017 1974
Ties: 1946
Jun 2017–Apr 2018
11-Month
42.98"
(1,091.69mm)
39.89"
(1,013.21mm)
3.09"
(78.48mm)
83rd Driest Driest since: 2015 1977
45th Wettest Wettest since: 2017 1974
May 2017–Apr 2018
12-Month
45.40"
(1,153.16mm)
42.14"
(1,070.36mm)
3.26"
(82.80mm)
83rd Driest Driest since: 2015 1977
45th Wettest Wettest since: 2017 1997
Nov 2016–Apr 2018
18-Month
81.42"
(2,068.07mm)
72.57"
(1,843.28mm)
8.85"
(224.79mm)
109th Driest Driest since: 2016 1930
18th Wettest Wettest since: 2017 1997
May 2016–Apr 2018
24-Month
98.27"
(2,496.06mm)
84.31"
(2,141.47mm)
13.96"
(354.59mm)
120th Driest Driest since: 2016 1930
7th Wettest Wettest since: 2017 1997
May 2015–Apr 2018
36-Month
146.61"
(3,723.89mm)
126.39"
(3,210.31mm)
20.22"
(513.58mm)
120th Driest Driest since: 2017 1931
6th Wettest Wettest since: 1999 1997
May 2014–Apr 2018
48-Month
188.55"
(4,789.17mm)
168.47"
(4,279.14mm)
20.08"
(510.03mm)
119th Driest Driest since: 2017 1931
6th Wettest Wettest since: 2000 1999
May 2013–Apr 2018
60-Month
231.78"
(5,887.21mm)
210.46"
(5,345.68mm)
21.32"
(541.53mm)
116th Driest Driest since: 2017 1930
8th Wettest Wettest since: 2000 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, Precipitation, published September 2022, retrieved on September 27, 2022 from https://www.ncdc.noaa.gov/cag/