Weather Blog

Seattle sets not one, but two rain records in just over 15 hours

Seattle sets not one, but two rain records in just over 15 hours
Downtown Seattle (trust us, it's there behind the clouds) as seen from the Puget Sound Clean Air Agency visibility camera early Sunday morning, May 15, 2011.

"What's with all the rain out there? It looks like November!"

That was a phone call I just received from my sister Sunday morning, who also observed "it hasn’t stopped raining since yesterday evening."

She is correct on both counts. A steady, moderate rain has been falling across the Puget Sound region that has set not one, but two daily rainfall records within 15 hours and 14 minutes.

Seattle's Sea-Tac Airport received 0.97" from when the rain began at 6:48 p.m. through 1 a.m. Sunday. (Why 1 a.m. and not midnight? Because climate records are kept on Pacific Standard Time year-round. So it's measured midnight-to-midnight PST.)  That broke the daily rainfall record for May 14th, which had been 0.53" set in 2001.

And the rain didn't stop Sunday, which as of 10:02 a.m., had 0.57" of rain and broke May 15th's daily record as well -- old record was 0.56", also set in 2001.  The day finished up with 0.82" of rain.

To top it off, Saturday's 0.97" of rain was tied for third-wettest measured in May ever at Sea-Tac Airport -- and Sunday's 0.82" was fourth!

That means over the weekend, Seattle had over 1.79" of rain for the storm -- on par with the entire average monthly amount in one storm.

Rain was expected to be around at times through Monday, then we'll dry out and warm up as we get into the end of the week. It does not look like the dry weather will hold into the weekend, though.

Other rainfall totals:

Here are some other soggy rainfall totals, courtesy of the Washington CoCoRahs.org community weather spotter network:

  •   Puyallup: 2.00"
  •   North Bend: 1.96"
  •   Federal Way: 1.95"
  •   Olympia: 1.74"
  •   Eatonville: 1.65"
  •   Auburn: 1.60"
  •   Issaquah: 1.59"
  •   Tacoma: 1.54"
  •   Gig Harbor: 1.52"
  •   Bainbridge Isl: 1.50"
  •   Maple Valley: 1.48"
  •   Bellevue: 1.42"
  •   Renton: 1.36"
  •   Kent: 1.34"
  •   Covington: 1.33"
  •   Bothell: 1.31"
  •   Mercer Island: 1.25"
  •   Everett: 1.15"
  •   Redmond: 1.11"
  •   Sequim: 1.09"
  •   Shoreline: 0.98"