PARADISE, Wash. -- Cool ocean temperatures in the southern Pacific Ocean -- a phenomenon known as La Nina -- chilled sunny expectations this summer for thousands of visitors to Mount Rainier National Park. Those who arrived here in July planning to backpack or hike its famous sub-alpine wildflower meadows found snow instead, six feet in places, though sunny daytime temperatures reach into the 70s. The popular mountain that draws 1.5 million visitors each year received 950 inches of snow last winter, 300 inches more than its 650-inch average. Park officials said a cooler than usual spring also pushed back the thaw.