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)
Precipitation. Rain is a fact of life in Seattle. According to the city of Seattle's website, it rains 50 percent of the time in the city. On average, Seattle gets around 37 inches of precipitation each year, with the wettest times falling between October and January.recipitation. Rain is a fact of life in Seattle. According to the city of Seattle's website, it rains 50 percent of the time in the city. On average, Seattle gets around 37 inches of precipitation each year, with the wettest times falling between October and January.