Climate at a Glance

Regional 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 July 2020. For more information, please see Climatological Rankings.


Northwest Climate Region

Precipitation Rankings, July 2018

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Wettest/Driest
Since
Record
July 2018
1-Month
0.11"
(2.79mm)
0.73"
(18.54mm)
-0.62"
(-15.75mm)
1st Driest Driest to Date 2018
126th Wettest Wettest since: 2017 1983
Jun–Jul 2018
2-Month
1.47"
(37.34mm)
2.45"
(62.23mm)
-0.98"
(-24.89mm)
20th Driest Driest since: 2015 1919
107th Wettest Wettest since: 2017 1913
Ties: 1989
May–Jul 2018
3-Month
3.10"
(78.74mm)
4.59"
(116.59mm)
-1.49"
(-37.85mm)
10th Driest Driest since: 2007 1924
117th Wettest Wettest since: 2017 1948
Apr–Jul 2018
4-Month
6.72"
(170.69mm)
6.95"
(176.53mm)
-0.23"
(-5.84mm)
58th Driest Driest since: 2016 1924
69th Wettest Wettest since: 2017 1993
Mar–Jul 2018
5-Month
9.88"
(250.95mm)
10.21"
(259.33mm)
-0.33"
(-8.38mm)
57th Driest Driest since: 2015 1924
70th Wettest Wettest since: 2017 1993
Feb–Jul 2018
6-Month
12.75"
(323.85mm)
13.82"
(351.03mm)
-1.07"
(-27.18mm)
46th Driest Driest since: 2015 1924
81st Wettest Wettest since: 2017 1904
Jan–Jul 2018
7-Month
17.41"
(442.21mm)
18.35"
(466.09mm)
-0.94"
(-23.88mm)
49th Driest Driest since: 2015 1924
78th Wettest Wettest since: 2017 1904
Dec 2017–Jul 2018
8-Month
20.41"
(518.41mm)
22.99"
(583.95mm)
-2.58"
(-65.54mm)
30th Driest Driest since: 2015 1977
96th Wettest Wettest since: 2017 1997
Nov 2017–Jul 2018
9-Month
26.02"
(660.91mm)
27.34"
(694.44mm)
-1.32"
(-33.53mm)
46th Driest Driest since: 2015 1977
80th Wettest Wettest since: 2017 1997
Oct 2017–Jul 2018
10-Month
29.17"
(740.92mm)
29.90"
(759.46mm)
-0.73"
(-18.54mm)
53rd Driest Driest since: 2015 1977
73rd Wettest Wettest since: 2017 1997
Ties: 1923, 1928
Sep 2017–Jul 2018
11-Month
30.78"
(781.81mm)
31.32"
(795.53mm)
-0.54"
(-13.72mm)
57th Driest Driest since: 2015 1977
69th Wettest Wettest since: 2017 1997
Aug 2017–Jul 2018
12-Month
31.02"
(787.91mm)
32.13"
(816.10mm)
-1.11"
(-28.19mm)
54th Driest Driest since: 2015 1977
72nd Wettest Wettest since: 2017 1997
Feb 2017–Jul 2018
18-Month
50.48"
(1,282.19mm)
45.95"
(1,167.13mm)
4.53"
(115.06mm)
103rd Driest Driest since: 2016 1977
23rd Wettest Wettest since: 2017 1997
Aug 2016–Jul 2018
24-Month
71.69"
(1,820.93mm)
64.28"
(1,632.71mm)
7.41"
(188.22mm)
111th Driest Driest since: 2016 1930
14th Wettest Wettest since: 2017 1997
Aug 2015–Jul 2018
36-Month
107.12"
(2,720.85mm)
96.37"
(2,447.80mm)
10.75"
(273.05mm)
116th Driest Driest since: 2017 1931
8th Wettest Wettest since: 1999 1997
Aug 2014–Jul 2018
48-Month
136.95"
(3,478.53mm)
128.41"
(3,261.61mm)
8.54"
(216.92mm)
108th Driest Driest since: 2017 1931
15th Wettest Wettest since: 2000 1999
Aug 2013–Jul 2018
60-Month
167.94"
(4,265.68mm)
160.38"
(4,073.65mm)
7.56"
(192.03mm)
97th Driest Driest since: 2017 1933
25th Wettest Wettest since: 2001 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published August 2020, retrieved on August 11, 2020 from https://www.ncdc.noaa.gov/cag/