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Yes, it’s been a really rainy October in Whatcom County

October 2016 rainfall near a record in Bellingham

October 2016 was one of the wettest on record in Bellingham, Washington, with 6.18 inches recorded by Wednesday morning, Oct. 26. That's more than twice the normal average of 2.72 inches.
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October 2016 was one of the wettest on record in Bellingham, Washington, with 6.18 inches recorded by Wednesday morning, Oct. 26. That's more than twice the normal average of 2.72 inches.

Tired of the rain yet? If so, you probably don’t want to know that it’s already one of the wettest Octobers on record, with the Northwest’s rainiest months still ahead.

“It has rained a lot, yeah,” said meteorologist Danny Mercer at the National Weather Service office in Seattle. The forecast calls for rain almost every day through Halloween, he said. Only Friday holds the promise of some sun, according to the forecast.

Three storms alone contributed to half that rain. Three really juicy storms tapped that tropical moisture.

Danny Mercer, National Weather Service meteorologist

Historical weather data for Bellingham wasn’t immediately available from the Western Region Climate Center in Reno, Nev., but it’s already the third-rainiest October on record in Seattle, Mercer said.

In Bellingham, 6.18 inches of rain had fallen in October through Wednesday morning, Mercer said. That compares to 1.71 inches of rain for the month at this time last year, and a normal October average of 2.72 inches.

“There’s nothing specific that I can attribute it to,” Mercer said. He noted it’s not unusual for the remnants of weather systems such as a typhoon to sock Western Washington with heavy rain and wind, as residents saw this month. Heavy amounts of rain fell Oct. 8 (1.45 inches), Oct. 14 (0.9 inches) and Oct. 20 (0.9 inches).

“Three storms alone contributed to half that rain,” Mercer said. “Three really juicy storms tapped that tropical moisture. That’s why fall can be the rainiest in the Northwest.”

November and December see two to three inches more rainfall per month than October, according to the U.S. Climate Data website.

Robert Mittendorf: 360-756-2805, @BhamMitty

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