However, sometimes damage caused by a mudslide can take days or even weeks to surface. An example of this 'delayed triggering' of deeper landslides occurred in Los Angeles, Calif., in 1998, when mudslides forced the evacuation of more than 100 people and destroyed several houses five days after the rain had stopped, according to the California Geological Survey (CGS).
The lowest monthly average temperature in Fullerton for January is 55 degrees. The most monthly precipitation in Fullerton occurs in January with 2.6 inches. The air quality index in Fullerton is 49% worse than the national average. The pollution index in Fullerton is 83% better than the national average.
Weather & Climate. Beaverton's Average Conditions. Although the Pacific Northwest is known for wet winters, youâll be surprised to know that Beaverton averages only 36 inches of rain per year - which is less than Baltimore, Maryland, with 41 inches, and Miami, Florida, with 56 inches. In the dry months, June through September, Beaverton receives less than five inches of rain total. The average temperature in the summer is in the 80s and, because of the northern latitude, the total number of hours of daylight in the summer can reach almost 16 hours (sunrise at 5:21 am and sunset at 9:02 pm).