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 2022. For more information, please see Climatological Rankings.


Northwest Climate Region

Precipitation Rankings, October 2020

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
October 2020
1-Month
2.13"
(54.10mm)
2.54"
(64.52mm)
-0.41"
(-10.42mm)
46th Driest Driest since: 2013 1895
82nd Wettest Wettest since: 2019 2016
Sep–Oct 2020
2-Month
3.36"
(85.34mm)
3.96"
(100.58mm)
-0.60"
(-15.24mm)
43rd Driest Driest since: 2018 1987
85th Wettest Wettest since: 2019 2016
Aug–Oct 2020
3-Month
3.63"
(92.20mm)
4.76"
(120.90mm)
-1.13"
(-28.70mm)
30th Driest Driest since: 2018 1987
98th Wettest Wettest since: 2019 2016
Jul–Oct 2020
4-Month
3.93"
(99.82mm)
5.49"
(139.45mm)
-1.56"
(-39.63mm)
18th Driest Driest since: 2018 1952
110th Wettest Wettest since: 2019 2016
Ties: 1999
Jun–Oct 2020
5-Month
6.37"
(161.80mm)
7.21"
(183.13mm)
-0.84"
(-21.33mm)
41st Driest Driest since: 2018 1917, 2002
87th Wettest Wettest since: 2019 1947
Ties: 1945
May–Oct 2020
6-Month
9.32"
(236.73mm)
9.35"
(237.49mm)
-0.03"
(-0.76mm)
64th Driest Driest since: 2018 2002
64th Wettest Wettest since: 2019 1941
Apr–Oct 2020
7-Month
10.71"
(272.03mm)
11.71"
(297.43mm)
-1.00"
(-25.40mm)
44th Driest Driest since: 2018 2002
84th Wettest Wettest since: 2019 1997
Mar–Oct 2020
8-Month
13.09"
(332.49mm)
14.97"
(380.24mm)
-1.88"
(-47.75mm)
33rd Driest Driest since: 2015 1939
95th Wettest Wettest since: 2019 1997
Ties: 1934
Feb–Oct 2020
9-Month
15.99"
(406.15mm)
18.58"
(471.93mm)
-2.59"
(-65.78mm)
26th Driest Driest since: 2015 1929
102nd Wettest Wettest since: 2019 2017
Ties: 1936
Jan–Oct 2020
10-Month
22.82"
(579.63mm)
23.10"
(586.74mm)
-0.28"
(-7.11mm)
57th Driest Driest since: 2018 1929
71st Wettest Wettest since: 2019 1950
Dec 2019–Oct 2020
11-Month
26.49"
(672.85mm)
27.75"
(704.85mm)
-1.26"
(-32.00mm)
46th Driest Driest since: 2018 1929
81st Wettest Wettest since: 2019 1997
Ties: 1963
Nov 2019–Oct 2020
12-Month
27.74"
(704.60mm)
32.10"
(815.34mm)
-4.36"
(-110.74mm)
20th Driest Driest since: 2005 1977
107th Wettest Wettest since: 2019 1997
May 2019–Oct 2020
18-Month
37.27"
(946.66mm)
41.48"
(1,053.59mm)
-4.21"
(-106.93mm)
26th Driest Driest since: 2008 1929
101st Wettest Wettest since: 2019 1997
Nov 2018–Oct 2020
24-Month
59.19"
(1,503.43mm)
64.23"
(1,631.44mm)
-5.04"
(-128.01mm)
24th Driest Driest since: 2015 1930
102nd Wettest Wettest since: 2019 1997
Nov 2017–Oct 2020
36-Month
88.64"
(2,251.46mm)
96.31"
(2,446.27mm)
-7.67"
(-194.81mm)
19th Driest Driest since: 2003 1931
106th Wettest Wettest since: 2019 1997
Nov 2016–Oct 2020
48-Month
125.65"
(3,191.51mm)
128.38"
(3,260.85mm)
-2.73"
(-69.34mm)
49th Driest Driest since: 2015 1931
75th Wettest Wettest since: 2019 1999
Nov 2015–Oct 2020
60-Month
165.34"
(4,199.64mm)
160.37"
(4,073.40mm)
4.97"
(126.24mm)
88th Driest Driest since: 2018 1932
35th Wettest Wettest since: 2019 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published August 2022, retrieved on August 19, 2022 from https://www.ncei.noaa.gov/cag/