Silvana is located in Washington. Silvana, Washington has a population of 0. The county average for households married with children is 35.17%.
The median household income for the surrounding county is $78,020 compared to the national median of $57,652.
The average high temperature in July is 74.2 degrees, with an average low temperature in January of 35 degrees. The average rainfall is approximately 48.3 inches per year, with 7.2 inches of snow per year.