However, when looking at Florida's average monthly rainfall a different relationship emerges. Precipitation increases dramatically in May, peaking in August and September, then drops rapidly until November. Precipitation then remains steady between 2 and 3 inches a month for the 6-month period from November through April. The "Wet Season" rainfall (from May through October) is dominated by daily solar radiation induced sea breeze thunderstorms that are fueled by the increase in available moisture from the warmer waters surrounding Florida and from passing tropical disturbances. During the "Dry Season" (from November through April) there is not enough solar radiation and available low level moisture to produce daily cycles of rainfall from local circulations. During the dry season Florida is almost entirely dependent on passing extratropical cyclones or disturbances in the westerlies to bring rainfall.