The coldest average temperature in Scottsdale is December at 54.2 degrees. The most monthly precipitation in Scottsdale occurs in August with 1.5 inches. The Scottsdale weather information is based on the average of the previous 3-7 years of data.
Divergent boundaries within continents initially produce rifts which eventually become rift valleys. Most active divergent plate boundaries occur between oceanic plates and exist as mid-oceanic ridges. Divergent boundaries also form volcanic islands which occur when the plates move apart to produce gaps which molten lava rises to fill.
More  commonly, divergent boundaries in the ocea â¦ n occur and cause  mid-oceanic ridges. Divergent boundaries can also form volcanoes  when the plates separate enough to allow molten lava to seep out,  harden, and eventually form islands.7 people found this useful.ore  commonly, divergent boundaries in the ocea â¦ n occur and cause  mid-oceanic ridges. Divergent boundaries can also form volcanoes  when the plates separate enough to allow molten lava to seep out,  harden, and eventually form islands. 7 people found this useful.