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 2020. For more information, please see Climatological Rankings.


Washington

Precipitation Rankings, May 2020

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Wettest/Driest
Since
Record
May 2020
1-Month
3.50"
(88.90mm)
2.25"
(57.15mm)
1.25"
(31.75mm)
115th Driest Driest since: 2019 1924
12th Wettest Wettest since: 2011 1948
Ties: 1996
Apr–May 2020
2-Month
4.88"
(123.95mm)
5.08"
(129.03mm)
-0.20"
(-5.08mm)
57th Driest Driest since: 2016 1924
70th Wettest Wettest since: 2019 1948
Mar–May 2020
3-Month
7.72"
(196.09mm)
9.23"
(234.44mm)
-1.51"
(-38.35mm)
30th Driest Driest since: 2019 1924
97th Wettest Wettest since: 2018 2011
Feb–May 2020
4-Month
12.66"
(321.56mm)
13.96"
(354.58mm)
-1.30"
(-33.02mm)
44th Driest Driest since: 2019 1973
83rd Wettest Wettest since: 2018 2017
Jan–May 2020
5-Month
23.17"
(588.52mm)
20.03"
(508.76mm)
3.14"
(79.76mm)
99th Driest Driest since: 2019 1985
28th Wettest Wettest since: 2017 1961
Dec 2019–May 2020
6-Month
28.76"
(730.50mm)
26.54"
(674.12mm)
2.22"
(56.38mm)
86th Driest Driest since: 2019 1985
40th Wettest Wettest since: 2017 1997
Nov 2019–May 2020
7-Month
30.62"
(777.75mm)
32.67"
(829.82mm)
-2.05"
(-52.07mm)
45th Driest Driest since: 2019 1977
81st Wettest Wettest since: 2018 1974
Oct 2019–May 2020
8-Month
34.40"
(873.76mm)
36.36"
(923.54mm)
-1.96"
(-49.78mm)
45th Driest Driest since: 2019 1977
81st Wettest Wettest since: 2018 1974
Sep 2019–May 2020
9-Month
38.02"
(965.71mm)
38.32"
(973.33mm)
-0.30"
(-7.62mm)
62nd Driest Driest since: 2019 1977
64th Wettest Wettest since: 2018 1974
Aug 2019–May 2020
10-Month
38.95"
(989.33mm)
39.35"
(999.49mm)
-0.40"
(-10.16mm)
57th Driest Driest since: 2019 1977
69th Wettest Wettest since: 2018 1974
Jul 2019–May 2020
11-Month
39.86"
(1,012.44mm)
40.24"
(1,022.10mm)
-0.38"
(-9.66mm)
60th Driest Driest since: 2019 1977
66th Wettest Wettest since: 2018 1974
Jun 2019–May 2020
12-Month
40.91"
(1,039.11mm)
42.13"
(1,070.10mm)
-1.22"
(-30.99mm)
51st Driest Driest since: 2019 1977
75th Wettest Wettest since: 2018 1974
Dec 2018–May 2020
18-Month
63.26"
(1,606.80mm)
68.67"
(1,744.22mm)
-5.41"
(-137.42mm)
32nd Driest Driest since: 2019 1930
93rd Wettest Wettest since: 2018 1997
Jun 2018–May 2020
24-Month
75.59"
(1,919.99mm)
84.30"
(2,141.22mm)
-8.71"
(-221.23mm)
20th Driest Driest since: 2005 1930
105th Wettest Wettest since: 2019 1997
Jun 2017–May 2020
36-Month
119.65"
(3,039.11mm)
126.40"
(3,210.56mm)
-6.75"
(-171.45mm)
34th Driest Driest since: 2005 1931
90th Wettest Wettest since: 2019 1998
Jun 2016–May 2020
48-Month
173.40"
(4,404.36mm)
168.49"
(4,279.65mm)
4.91"
(124.71mm)
73rd Driest Driest since: 2015 1931
50th Wettest Wettest since: 2019 1999
Jun 2015–May 2020
60-Month
221.77"
(5,632.96mm)
210.48"
(5,346.19mm)
11.29"
(286.77mm)
88th Driest Driest since: 2016 1930
34th Wettest Wettest since: 2019 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2020, retrieved on October 21, 2020 from https://www.ncdc.noaa.gov/cag/