Close the supply water valve to the water heater. located, in most cases, above the water heater on. the cold water inlet to the hot water heater. 2. Drain the water from the hot water pipe by opening. a hot water faucet in the house. Let the water run. until it stops flowing.
The annual average precipitation at Seattle is 38.25 Inches. Winter months tend to be wetter than summer months. The wettest month of the year is December with an average rainfall of 6.06 Inches. We usually only get 1-3 days of snowfall a year.
Usually, winter storms do not produce snow unless the storm moves in such a way to bring cold air out of Canada directly or with only a short trajectory over water. Seattle-Tacoma's average first occurrence of 32 degrees Fahrenheit in the fall is November 11 and the average last occurrence in the spring is March 24.