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


Northwest Climate Region

Precipitation Rankings, August 1999

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
August 1999
1-Month
1.15"
(29.21mm)
0.80"
(20.32mm)
0.35"
(8.89mm)
99th Driest Driest since: 1998 1914
27th Wettest Wettest since: 1990 1968
Jul–Aug 1999
2-Month
1.58"
(40.13mm)
1.53"
(38.86mm)
0.05"
(1.27mm)
78th Driest Driest since: 1998 1917, 1931
48th Wettest Wettest since: 1997 1983
Jun–Aug 1999
3-Month
3.04"
(77.22mm)
3.25"
(82.55mm)
-0.21"
(-5.33mm)
69th Driest Driest since: 1996 1919
57th Wettest Wettest since: 1998 1983
Ties: 1969, 1989
May–Aug 1999
4-Month
5.25"
(133.35mm)
5.39"
(136.91mm)
-0.14"
(-3.56mm)
67th Driest Driest since: 1994 1919
59th Wettest Wettest since: 1998 1948
Apr–Aug 1999
5-Month
6.74"
(171.20mm)
7.75"
(196.85mm)
-1.01"
(-25.65mm)
39th Driest Driest since: 1994 1924
87th Wettest Wettest since: 1998 1993
Mar–Aug 1999
6-Month
9.75"
(247.65mm)
11.01"
(279.65mm)
-1.26"
(-32.00mm)
36th Driest Driest since: 1994 1924
90th Wettest Wettest since: 1998 1993
Feb–Aug 1999
7-Month
16.91"
(429.51mm)
14.62"
(371.35mm)
2.29"
(58.16mm)
100th Driest Driest since: 1998 1924
26th Wettest Wettest since: 1997 1904
Jan–Aug 1999
8-Month
22.16"
(562.86mm)
19.14"
(486.16mm)
3.02"
(76.70mm)
103rd Driest Driest since: 1994 1924
23rd Wettest Wettest since: 1998 1983
Dec 1998–Aug 1999
9-Month
28.35"
(720.09mm)
23.79"
(604.27mm)
4.56"
(115.82mm)
110th Driest Driest since: 1998 1924
15th Wettest Wettest since: 1997 1997
Nov 1998–Aug 1999
10-Month
35.67"
(906.02mm)
28.14"
(714.76mm)
7.53"
(191.26mm)
120th Driest Driest since: 1998 1977
5th Wettest Wettest since: 1997 1997
Oct 1998–Aug 1999
11-Month
37.44"
(950.98mm)
30.70"
(779.78mm)
6.74"
(171.20mm)
116th Driest Driest since: 1998 1977
9th Wettest Wettest since: 1997 1997
Sep 1998–Aug 1999
12-Month
38.69"
(982.73mm)
32.12"
(815.85mm)
6.57"
(166.88mm)
114th Driest Driest since: 1998 1977
11th Wettest Wettest since: 1997 1997
Mar 1998–Aug 1999
18-Month
51.76"
(1,314.70mm)
43.14"
(1,095.76mm)
8.62"
(218.94mm)
117th Driest Driest since: 1998 1977
8th Wettest Wettest since: 1997 1997
Sep 1997–Aug 1999
24-Month
74.10"
(1,882.14mm)
64.27"
(1,632.46mm)
9.83"
(249.68mm)
115th Driest Driest since: 1995 1930
9th Wettest Wettest since: 1998 1997
Sep 1996–Aug 1999
36-Month
118.21"
(3,002.53mm)
96.35"
(2,447.29mm)
21.86"
(555.24mm)
119th Driest Driest since: 1996 1931
4th Wettest Wettest since: 1998 1997
Sep 1995–Aug 1999
48-Month
158.96"
(4,037.58mm)
128.40"
(3,261.36mm)
30.56"
(776.22mm)
121st Driest Driest since: 1998 1931
1st Wettest Wettest to Date 1999
Sep 1994–Aug 1999
60-Month
196.97"
(5,003.04mm)
160.37"
(4,073.40mm)
36.60"
(929.64mm)
120th Driest Driest since: 1998 1933
1st Wettest Wettest to Date 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published November 2019, retrieved on November 19, 2019 from https://www.ncdc.noaa.gov/cag/