What is the general trend in climate (both temperature and precipitation) over the past 50 years for the city of Seattle?

Typically, Seattle's temperature varies from 36 degrees to 77 degrees Fahreinheit and is rarely below from 27 degrees or above 86 degrees Fahrenheit. The probable precipitation is most likely around December occuring in 68 percent of days. Precipitation is least likely around August occuring in 26 percent of days.