Description of weather patterns

<Tab/>Air masses are how weather travels through out the world and the weather creates weather patterns.Air masses and accompanying fronts do not remain stationary for long. Although their movements are never exactly the same, they do exhibit some patterns that help meteorologists and others predict the weather. The boundary between two air masses is called a front. As a result, moving fronts indicate a change in the weather. The …

…Despite a cold start, April will be mild, with several spells of unusual warmth. May will bring temperatures near normal. Rainfall in April and May will be near normal in the east and below normal in the west.Summer will be cooler than normal with near-normal rainfall. The hottest weather will occur in mid- to late July and from late August into early September.Overall, September and October will be cooler and drier than normal.