Climate at a Glance

Statewide 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 September 2019. For more information, please see Climatological Rankings.


Washington

Precipitation Rankings, May 1999

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
May 1999
1-Month
2.50"
(63.50mm)
2.25"
(57.15mm)
0.25"
(6.35mm)
78th Driest Driest since: 1995 1924
48th Wettest Wettest since: 1998 1948
Apr–May 1999
2-Month
3.96"
(100.58mm)
5.08"
(129.03mm)
-1.12"
(-28.45mm)
25th Driest Driest since: 1973 1924
101st Wettest Wettest since: 1998 1948
Mar–May 1999
3-Month
8.47"
(215.14mm)
9.23"
(234.44mm)
-0.76"
(-19.30mm)
46th Driest Driest since: 1994 1924
80th Wettest Wettest since: 1998 2011
Feb–May 1999
4-Month
18.40"
(467.36mm)
13.96"
(354.58mm)
4.44"
(112.78mm)
111th Driest Driest since: 1998 1973
15th Wettest Wettest since: 1997 2017
Jan–May 1999
5-Month
25.93"
(658.62mm)
20.03"
(508.76mm)
5.90"
(149.86mm)
117th Driest Driest since: 1998 1985
9th Wettest Wettest since: 1997 1961
Dec 1998–May 1999
6-Month
35.99"
(914.15mm)
26.54"
(674.12mm)
9.45"
(240.03mm)
122nd Driest Driest since: 1998 1985
3rd Wettest Wettest since: 1997 1997
Nov 1998–May 1999
7-Month
46.03"
(1,169.16mm)
32.67"
(829.82mm)
13.36"
(339.34mm)
123rd Driest Driest since: 1998 1977
2nd Wettest Wettest since: 1974 1974
Oct 1998–May 1999
8-Month
48.79"
(1,239.27mm)
36.36"
(923.54mm)
12.43"
(315.73mm)
121st Driest Driest since: 1998 1977
4th Wettest Wettest since: 1997 1974
Sep 1998–May 1999
9-Month
49.45"
(1,256.03mm)
38.32"
(973.33mm)
11.13"
(282.70mm)
120th Driest Driest since: 1998 1977
5th Wettest Wettest since: 1997 1974
Aug 1998–May 1999
10-Month
49.66"
(1,261.36mm)
39.35"
(999.49mm)
10.31"
(261.87mm)
120th Driest Driest since: 1998 1977
5th Wettest Wettest since: 1997 1974
Jul 1998–May 1999
11-Month
50.73"
(1,288.54mm)
40.24"
(1,022.10mm)
10.49"
(266.44mm)
120th Driest Driest since: 1998 1977
5th Wettest Wettest since: 1997 1974
Jun 1998–May 1999
12-Month
52.34"
(1,329.44mm)
42.13"
(1,070.10mm)
10.21"
(259.34mm)
119th Driest Driest since: 1998 1977
6th Wettest Wettest since: 1997 1974
Dec 1997–May 1999
18-Month
78.80"
(2,001.52mm)
68.67"
(1,744.22mm)
10.13"
(257.30mm)
110th Driest Driest since: 1995 1930
14th Wettest Wettest since: 1998 1997
Jun 1997–May 1999
24-Month
99.46"
(2,526.28mm)
84.30"
(2,141.22mm)
15.16"
(385.06mm)
119th Driest Driest since: 1995 1930
5th Wettest Wettest since: 1998 1997
Jun 1996–May 1999
36-Month
154.65"
(3,928.11mm)
126.40"
(3,210.56mm)
28.25"
(717.55mm)
120th Driest Driest since: 1996 1931
3rd Wettest Wettest since: 1998 1998
Jun 1995–May 1999
48-Month
210.74"
(5,352.80mm)
168.49"
(4,279.65mm)
42.25"
(1,073.15mm)
121st Driest Driest since: 1998 1931
1st Wettest Wettest to Date 1999
Jun 1994–May 1999
60-Month
256.50"
(6,515.10mm)
210.48"
(5,346.19mm)
46.02"
(1,168.91mm)
120th Driest Driest since: 1998 1930
1st Wettest Wettest to Date 1999

Citing This Page

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