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 December 2020. For more information, please see Climatological Rankings.


Northwest Climate Region

Precipitation Rankings, October 1999

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Wettest/Driest
Since
Record
October 1999
1-Month
2.16"
(54.86mm)
2.54"
(64.52mm)
-0.38"
(-9.66mm)
47th Driest Driest since: 1998 1895
80th Wettest Wettest since: 1997 2016
Sep–Oct 1999
2-Month
2.35"
(59.69mm)
3.96"
(100.58mm)
-1.61"
(-40.89mm)
17th Driest Driest since: 1993 1987
110th Wettest Wettest since: 1998 2016
Aug–Oct 1999
3-Month
3.50"
(88.90mm)
4.76"
(120.90mm)
-1.26"
(-32.00mm)
25th Driest Driest since: 1998 1987
102nd Wettest Wettest since: 1997 2016
Ties: 2011
Jul–Oct 1999
4-Month
3.93"
(99.82mm)
5.49"
(139.45mm)
-1.56"
(-39.63mm)
18th Driest Driest since: 1991 1952
109th Wettest Wettest since: 1998 2016
Ties: 2020
Jun–Oct 1999
5-Month
5.39"
(136.91mm)
7.21"
(183.13mm)
-1.82"
(-46.22mm)
20th Driest Driest since: 1988 1917, 2002
107th Wettest Wettest since: 1998 1947
May–Oct 1999
6-Month
7.60"
(193.04mm)
9.35"
(237.49mm)
-1.75"
(-44.45mm)
24th Driest Driest since: 1988 2002
103rd Wettest Wettest since: 1998 1941
Apr–Oct 1999
7-Month
9.09"
(230.89mm)
11.71"
(297.43mm)
-2.62"
(-66.54mm)
15th Driest Driest since: 1987 2002
112th Wettest Wettest since: 1998 1997
Mar–Oct 1999
8-Month
12.10"
(307.34mm)
14.97"
(380.24mm)
-2.87"
(-72.90mm)
19th Driest Driest since: 1987 1939
108th Wettest Wettest since: 1998 1997
Feb–Oct 1999
9-Month
19.26"
(489.20mm)
18.58"
(471.93mm)
0.68"
(17.27mm)
75th Driest Driest since: 1994 1929
52nd Wettest Wettest since: 1998 2017
Ties: 1951
Jan–Oct 1999
10-Month
24.51"
(622.55mm)
23.10"
(586.74mm)
1.41"
(35.81mm)
85th Driest Driest since: 1994 1929
42nd Wettest Wettest since: 1998 1950
Dec 1998–Oct 1999
11-Month
30.70"
(779.78mm)
27.75"
(704.85mm)
2.95"
(74.93mm)
101st Driest Driest since: 1998 1929
25th Wettest Wettest since: 1997 1997
Nov 1998–Oct 1999
12-Month
38.02"
(965.71mm)
32.10"
(815.34mm)
5.92"
(150.37mm)
114th Driest Driest since: 1998 1977
12th Wettest Wettest since: 1997 1997
May 1998–Oct 1999
18-Month
48.87"
(1,241.30mm)
41.48"
(1,053.59mm)
7.39"
(187.71mm)
117th Driest Driest since: 1998 1929
9th Wettest Wettest since: 1997 1997
Nov 1997–Oct 1999
24-Month
69.93"
(1,776.22mm)
64.23"
(1,631.44mm)
5.70"
(144.78mm)
108th Driest Driest since: 1995 1930
17th Wettest Wettest since: 1998 1997
Nov 1996–Oct 1999
36-Month
115.48"
(2,933.19mm)
96.31"
(2,446.27mm)
19.17"
(486.92mm)
120th Driest Driest since: 1996 1931
4th Wettest Wettest since: 1998 1997
Nov 1995–Oct 1999
48-Month
157.24"
(3,993.90mm)
128.38"
(3,260.85mm)
28.86"
(733.05mm)
122nd Driest Driest since: 1998 1931
1st Wettest Wettest to Date 1999
Nov 1994–Oct 1999
60-Month
194.98"
(4,952.49mm)
160.37"
(4,073.40mm)
34.61"
(879.09mm)
121st Driest Driest since: 1998 1932
1st Wettest Wettest to Date 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published January 2021, retrieved on January 17, 2021 from https://www.ncdc.noaa.gov/cag/