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 May 2021. For more information, please see Climatological Rankings.


Northwest Climate Region

Precipitation Rankings, October 1899

View Period (Months):All12345678910111218243648
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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Wettest/Driest
Since
Record
October 1899
1-Month
3.89"
(98.81mm)
2.54"
(64.52mm)
1.35"
(34.29mm)
112th Driest Driest since: 1898 1895
15th Wettest Wettest to Date 2016
Sep–Oct 1899
2-Month
4.90"
(124.46mm)
3.96"
(100.58mm)
0.94"
(23.88mm)
97th Driest Driest since: 1898 1987
30th Wettest Wettest to Date 2016
Aug–Oct 1899
3-Month
6.80"
(172.72mm)
4.76"
(120.90mm)
2.04"
(51.82mm)
109th Driest Driest since: 1898 1987
18th Wettest Wettest to Date 2016
Jul–Oct 1899
4-Month
7.09"
(180.09mm)
5.49"
(139.45mm)
1.60"
(40.64mm)
106th Driest Driest since: 1898 1952
21st Wettest Wettest to Date 2016
Jun–Oct 1899
5-Month
8.02"
(203.71mm)
7.21"
(183.13mm)
0.81"
(20.58mm)
90th Driest Driest since: 1898 1917, 2002
37th Wettest Wettest to Date 1947
Ties: 1967
May–Oct 1899
6-Month
10.48"
(266.19mm)
9.35"
(237.49mm)
1.13"
(28.70mm)
91st Driest Driest since: 1898 2002
36th Wettest Wettest to Date 1941
Apr–Oct 1899
7-Month
13.29"
(337.57mm)
11.71"
(297.43mm)
1.58"
(40.14mm)
96th Driest Driest since: 1898 2002
31st Wettest Wettest since: 1896 1997
Ties: 1978
Mar–Oct 1899
8-Month
16.59"
(421.39mm)
14.97"
(380.24mm)
1.62"
(41.15mm)
94th Driest Driest since: 1898 1939
33rd Wettest Wettest to Date 1997
Feb–Oct 1899
9-Month
21.21"
(538.73mm)
18.58"
(471.93mm)
2.63"
(66.80mm)
102nd Driest Driest since: 1898 1929
25th Wettest Wettest to Date 2017
Jan–Oct 1899
10-Month
26.43"
(671.32mm)
23.10"
(586.74mm)
3.33"
(84.58mm)
107th Driest Driest since: 1898 1929
20th Wettest Wettest to Date 1950
Dec 1898–Oct 1899
11-Month
29.04"
(737.62mm)
27.75"
(704.85mm)
1.29"
(32.77mm)
83rd Driest Driest since: 1898 1929
43rd Wettest Wettest since: 1896 1997
Nov 1898–Oct 1899
12-Month
33.57"
(852.68mm)
32.10"
(815.34mm)
1.47"
(37.34mm)
81st Driest Driest since: 1898 1977
45th Wettest Wettest since: 1897 1997
May 1898–Oct 1899
18-Month
41.73"
(1,059.94mm)
41.48"
(1,053.59mm)
0.25"
(6.35mm)
71st Driest Driest since: 1898 1929
55th Wettest Wettest since: 1897 1997
Nov 1897–Oct 1899
24-Month
64.75"
(1,644.65mm)
64.23"
(1,631.44mm)
0.52"
(13.21mm)
71st Driest Driest to Date 1930
54th Wettest Wettest since: 1898 1997
Nov 1896–Oct 1899
36-Month
101.68"
(2,582.67mm)
96.31"
(2,446.27mm)
5.37"
(136.40mm)
99th Driest Driest to Date 1931
25th Wettest Wettest since: 1898 1997
Nov 1895–Oct 1899
48-Month
136.33"
(3,462.78mm)
128.38"
(3,260.85mm)
7.95"
(201.93mm)
105th Driest Driest to Date 1931
18th Wettest Wettest to Date 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published June 2021, retrieved on June 20, 2021 from https://www.ncdc.noaa.gov/cag/