More than 4.5 inches of rain fell in some areas of Western Washington in a 48-hour period ending at 1 p.m. Sunday afternoon, the National Weather Service reported.
NWS said 4.57 inches of rain fell at Lilliwaup, 4.50 inches in the Hood Canal area and 2.49 inches at Tumwater.
In the greater Seattle area, 1.62 inches fell in Seattle, 1.42 inches at Sea-Tac, 1.40 inches at Yarrow Point and 1.14 inches in Bellevue.
Saturday's 1.31 inches of rain at Sea-Tac broke the old record of 0.73 inches set in 2012.
"Saturday was the second-wettest day in May recorded at Sea-Tac," said KING 5 Meteorologist Lisa Van Cise.
On the low end of the scale were E. Woodinville at 0.01 inches, 0.05 inches in Centralia and 0.07 inches in Sumner.
The Weather Service report said observations were collected from a variety of sources with varying equipment and exposure so not all data listed is considered official.
A flood warning is in effect until Monday morning for the Skokomish River in Mason County.
A ridge of high pressure will build on Tuesday, leading to a couple of days of dry weather with temperatures in the 60s.