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


Washington

Precipitation Rankings, September 1978

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
September 1978
1-Month
3.88"
(98.55mm)
1.95"
(49.53mm)
1.93"
(49.02mm)
120th Driest Driest since: 1977 1975
6th Wettest Wettest since: 1969 2013
Ties: 1969, 1997
Aug–Sep 1978
2-Month
6.30"
(160.02mm)
2.98"
(75.69mm)
3.32"
(84.33mm)
123rd Driest Driest since: 1977 2012
3rd Wettest Wettest since: 1920 2013
Jul–Sep 1978
3-Month
7.79"
(197.87mm)
3.87"
(98.30mm)
3.92"
(99.57mm)
125th Driest Driest since: 1977 1929
1st Wettest Wettest since: 1920 1920, 1978
Ties: 1920
Jun–Sep 1978
4-Month
9.07"
(230.38mm)
5.76"
(146.30mm)
3.31"
(84.08mm)
120th Driest Driest since: 1977 2003
6th Wettest Wettest since: 1948 1948
May–Sep 1978
5-Month
11.85"
(300.99mm)
8.00"
(203.20mm)
3.85"
(97.79mm)
120th Driest Driest since: 1977 2003
6th Wettest Wettest since: 1948 1948
Apr–Sep 1978
6-Month
15.61"
(396.49mm)
10.83"
(275.08mm)
4.78"
(121.41mm)
120th Driest Driest since: 1977 1938
6th Wettest Wettest since: 1948 1948
Mar–Sep 1978
7-Month
18.59"
(472.19mm)
14.98"
(380.49mm)
3.61"
(91.70mm)
109th Driest Driest since: 1977 1924
17th Wettest Wettest since: 1972 1997
Feb–Sep 1978
8-Month
22.25"
(565.15mm)
19.72"
(500.89mm)
2.53"
(64.26mm)
98th Driest Driest since: 1977 1973
28th Wettest Wettest since: 1972 1948
Jan–Sep 1978
9-Month
27.14"
(689.36mm)
25.78"
(654.81mm)
1.36"
(34.55mm)
79th Driest Driest since: 1977 1929
47th Wettest Wettest since: 1975 1972
Dec 1977–Sep 1978
10-Month
36.75"
(933.45mm)
32.30"
(820.42mm)
4.45"
(113.03mm)
101st Driest Driest since: 1977 1929
24th Wettest Wettest since: 1974 1997
Nov 1977–Sep 1978
11-Month
44.08"
(1,119.63mm)
38.43"
(976.12mm)
5.65"
(143.51mm)
105th Driest Driest since: 1977 1929
20th Wettest Wettest since: 1974 1997
Oct 1977–Sep 1978
12-Month
46.68"
(1,185.67mm)
42.12"
(1,069.85mm)
4.56"
(115.82mm)
93rd Driest Driest since: 1977 1977
32nd Wettest Wettest since: 1976 1997
Apr 1977–Sep 1978
18-Month
58.83"
(1,494.28mm)
52.97"
(1,345.44mm)
5.86"
(148.84mm)
97th Driest Driest since: 1977 1929
28th Wettest Wettest since: 1976 1997
Oct 1976–Sep 1978
24-Month
74.84"
(1,900.94mm)
84.27"
(2,140.46mm)
-9.43"
(-239.52mm)
15th Driest Driest since: 1945 1930
109th Wettest Wettest since: 1977 1997
Oct 1975–Sep 1978
36-Month
125.31"
(3,182.87mm)
126.34"
(3,209.04mm)
-1.03"
(-26.17mm)
57th Driest Driest since: 1977 1931
66th Wettest Wettest since: 1976 1997
Oct 1974–Sep 1978
48-Month
167.95"
(4,265.93mm)
168.46"
(4,278.88mm)
-0.51"
(-12.95mm)
59th Driest Driest since: 1967 1931
63rd Wettest Wettest since: 1977 1999
Oct 1973–Sep 1978
60-Month
223.80"
(5,684.52mm)
210.45"
(5,345.43mm)
13.35"
(339.09mm)
95th Driest Driest since: 1977 1930
26th Wettest Wettest since: 1976 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published February 2020, retrieved on February 17, 2020 from https://www.ncdc.noaa.gov/cag/