1 Katla produces basaltic magmas that typically do not cause explosive eruptions. 2  Many scientists attribute a layer of ash deposited in the North Atlantic and across Europe some 12,000 years ago to a massive eruption of Katla.
The annual average precipitation at Lacey is 50.79 Inches. Winter months tend to be wetter than summer months. The wettest month of the year is November with an average rainfall of 8.13 Inches. (OLYMPIA AP Weather station, 5.78 miles from Lacey)
CLIMATE OVERVIEW. Snohomish, Washington, gets 46 inches of rain per year. The US average is 39. Snowfall is 3 inches. The average US city gets 26 inches of snow per year. The number of days with any measurable precipitation is 117.