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.
Below are two graphs that, together, show Seattleâs yearly precipitation from 1948 to present. The third chart lists Seattleâs top ten wettest days, with the record-setting rains of Oct. 20, 2003 ranking number one. 55.14 inches of precipitation doused Seattle in 1950âthe wettest year on record for the city.Just two years later, however, only a meager 23.78 inches fellâmaking 1952 the driest year in Seattleâs history.eattle had never seen a daily rainfall of 4 inches or more until Oct. 20, 2003, when a torrential 5.02 inches deluged the cityâsetting a new record for the wettest day in Seattle history.