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


Washington

Precipitation Rankings, August 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
August 2018
1-Month
0.35"
(8.89mm)
1.02"
(25.91mm)
-0.67"
(-17.02mm)
21st Driest Driest since: 2017 1967
105th Wettest Wettest since: 2016 1912
Jul–Aug 2018
2-Month
0.52"
(13.21mm)
1.92"
(48.77mm)
-1.40"
(-35.56mm)
8th Driest Driest since: 2017 2017
118th Wettest Wettest since: 2016 1983
Jun–Aug 2018
3-Month
1.88"
(47.75mm)
3.80"
(96.52mm)
-1.92"
(-48.77mm)
8th Driest Driest since: 2017 2003
118th Wettest Wettest since: 2016 1983
May–Aug 2018
4-Month
2.96"
(75.18mm)
6.05"
(153.67mm)
-3.09"
(-78.49mm)
3rd Driest Driest since: 2003 2003
123rd Wettest Wettest since: 2017 1948
Apr–Aug 2018
5-Month
8.43"
(214.12mm)
8.88"
(225.55mm)
-0.45"
(-11.43mm)
56th Driest Driest since: 2016 1924
70th Wettest Wettest since: 2017 1948
Mar–Aug 2018
6-Month
11.72"
(297.69mm)
13.03"
(330.96mm)
-1.31"
(-33.27mm)
40th Driest Driest since: 2015 1924
86th Wettest Wettest since: 2017 1997
Feb–Aug 2018
7-Month
16.11"
(409.19mm)
17.77"
(451.36mm)
-1.66"
(-42.17mm)
42nd Driest Driest since: 2015 1973
84th Wettest Wettest since: 2017 1948
Jan–Aug 2018
8-Month
23.85"
(605.79mm)
23.83"
(605.28mm)
0.02"
(0.51mm)
66th Driest Driest since: 2015 1985
60th Wettest Wettest since: 2017 1972
Dec 2017–Aug 2018
9-Month
28.94"
(735.08mm)
30.34"
(770.64mm)
-1.40"
(-35.56mm)
53rd Driest Driest since: 2015 1985
72nd Wettest Wettest since: 2017 1997
Nov 2017–Aug 2018
10-Month
37.80"
(960.12mm)
36.48"
(926.59mm)
1.32"
(33.53mm)
72nd Driest Driest since: 2015 1977
53rd Wettest Wettest since: 2017 1974
Oct 2017–Aug 2018
11-Month
42.86"
(1,088.64mm)
40.16"
(1,020.06mm)
2.70"
(68.58mm)
80th Driest Driest since: 2015 1977
45th Wettest Wettest since: 2017 1997
Ties: 1903
Sep 2017–Aug 2018
12-Month
44.21"
(1,122.93mm)
42.12"
(1,069.85mm)
2.09"
(53.08mm)
75th Driest Driest since: 2015 1977
50th Wettest Wettest since: 2017 1997
Mar 2017–Aug 2018
18-Month
61.77"
(1,568.96mm)
55.18"
(1,401.57mm)
6.59"
(167.39mm)
101st Driest Driest since: 2016 1930
24th Wettest Wettest since: 2017 1997
Sep 2016–Aug 2018
24-Month
96.34"
(2,447.04mm)
84.28"
(2,140.71mm)
12.06"
(306.33mm)
113th Driest Driest since: 2016 1930
11th Wettest Wettest since: 2017 1997
Sep 2015–Aug 2018
36-Month
145.84"
(3,704.34mm)
126.37"
(3,209.80mm)
19.47"
(494.54mm)
117th Driest Driest since: 2017 1931
6th Wettest Wettest since: 1999 1997
Sep 2014–Aug 2018
48-Month
185.10"
(4,701.54mm)
168.47"
(4,279.14mm)
16.63"
(422.40mm)
110th Driest Driest since: 2017 1931
12th Wettest Wettest since: 2000 1999
Sep 2013–Aug 2018
60-Month
227.71"
(5,783.83mm)
210.46"
(5,345.68mm)
17.25"
(438.15mm)
103rd Driest Driest since: 2017 1930
18th Wettest Wettest since: 2001 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2020, retrieved on January 22, 2020 from https://www.ncdc.noaa.gov/cag/