What are the odds it'll rain on any given day?

This chart will show how many times it has rained in Seattle on any given day over the past 122 years.

Period of record: Jan. 1, 1893 - Dec. 31, 2014

Combination of Seattle-Tacoma Airport and Federal Building

Blue numbers --  wettest days of month
Red numbers -- driest days of the month
Green number
-- wettest day of the year
Orange number -- driest day of the year.

Data courtesy: National Weather Service. Chart courtesy: Evan Schmidt.