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


Northwest Climate Region

Precipitation Rankings, April 1999

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
April 1999
1-Month
1.49"
(37.85mm)
2.36"
(59.94mm)
-0.87"
(-22.09mm)
18th Driest Driest since: 1977 1977
108th Wettest Wettest since: 1998 1937
Mar–Apr 1999
2-Month
4.50"
(114.30mm)
5.62"
(142.75mm)
-1.12"
(-28.45mm)
27th Driest Driest since: 1994 1924
99th Wettest Wettest since: 1998 1904
Feb–Apr 1999
3-Month
11.66"
(296.16mm)
9.23"
(234.44mm)
2.43"
(61.72mm)
108th Driest Driest since: 1998 1911
18th Wettest Wettest since: 1996 1904
Jan–Apr 1999
4-Month
16.91"
(429.51mm)
13.75"
(349.25mm)
3.16"
(80.26mm)
112th Driest Driest since: 1998 1977
14th Wettest Wettest since: 1996 1904
Dec 1998–Apr 1999
5-Month
23.10"
(586.74mm)
18.40"
(467.36mm)
4.70"
(119.38mm)
111th Driest Driest since: 1998 1977
14th Wettest Wettest since: 1997 1997
Nov 1998–Apr 1999
6-Month
30.42"
(772.67mm)
22.75"
(577.85mm)
7.67"
(194.82mm)
120th Driest Driest since: 1998 1977
5th Wettest Wettest since: 1997 1974
Oct 1998–Apr 1999
7-Month
32.19"
(817.63mm)
25.31"
(642.87mm)
6.88"
(174.76mm)
117th Driest Driest since: 1998 1977
8th Wettest Wettest since: 1997 1974
Sep 1998–Apr 1999
8-Month
33.44"
(849.38mm)
26.73"
(678.94mm)
6.71"
(170.44mm)
116th Driest Driest since: 1998 1977
9th Wettest Wettest since: 1997 1974
Aug 1998–Apr 1999
9-Month
33.66"
(854.96mm)
27.53"
(699.26mm)
6.13"
(155.70mm)
114th Driest Driest since: 1998 1977
11th Wettest Wettest since: 1997 1974
Jul 1998–Apr 1999
10-Month
34.61"
(879.09mm)
28.26"
(717.80mm)
6.35"
(161.29mm)
115th Driest Driest since: 1998 1977
10th Wettest Wettest since: 1997 1974
Jun 1998–Apr 1999
11-Month
36.57"
(928.88mm)
29.99"
(761.75mm)
6.58"
(167.13mm)
112th Driest Driest since: 1998 1977
13th Wettest Wettest since: 1997 1974
May 1998–Apr 1999
12-Month
41.27"
(1,048.26mm)
32.13"
(816.10mm)
9.14"
(232.16mm)
120th Driest Driest since: 1998 1977
5th Wettest Wettest since: 1997 1997
Nov 1997–Apr 1999
18-Month
62.33"
(1,583.18mm)
54.88"
(1,393.95mm)
7.45"
(189.23mm)
111th Driest Driest since: 1995 1930
13th Wettest Wettest since: 1998 1997
May 1997–Apr 1999
24-Month
75.49"
(1,917.45mm)
64.29"
(1,632.97mm)
11.20"
(284.48mm)
116th Driest Driest since: 1995 1930
8th Wettest Wettest since: 1998 1997
May 1996–Apr 1999
36-Month
118.51"
(3,010.15mm)
96.34"
(2,447.04mm)
22.17"
(563.11mm)
120th Driest Driest since: 1996 1931
3rd Wettest Wettest since: 1998 1997
May 1995–Apr 1999
48-Month
160.82"
(4,084.83mm)
128.37"
(3,260.60mm)
32.45"
(824.23mm)
121st Driest Driest since: 1998 1932
1st Wettest Wettest to Date 1999
May 1994–Apr 1999
60-Month
195.91"
(4,976.11mm)
160.35"
(4,072.89mm)
35.56"
(903.22mm)
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 September 2019, retrieved on September 15, 2019 from https://www.ncdc.noaa.gov/cag/