Humidity
Humidity does not seem to make much of a difference as we approach the equator. The humidity ranges from 0-100% for all cities examined, with the lowest humidity occurring about 35 degrees above the equator. Although the cities that lie within 10 degrees of the equator have a higher lowest humidity than those that lie within 40 degrees of the equator, the cities that are 60-80 degrees above the equator have the greatest percent of humidity than the other cities examined. Thus, a different analysis must be conducted to determine a statistically significant relationship between humidity and distance from the equator.