Several factors influence the spatial distribution of thunderstorms, among them surface dew point temperature. Add Average Distribution of Dew Point Temperatures, July - United States. Add Thunderstorm Occurrence - North America and select Split map window. In Main Menu, Change Projection to Albers (North America). In which range of dew points are the highest annual thunderstorm occurrences associated? View Available Hint(s)for Part A 30° to 39° Fless than 30° F55° to 59° F65° F and above40° to 49° F