Final answer:
Latitude is the primary factor that most strongly influences the pattern of average July temperatures, as it dictates the angle at which the sun's rays hit the Earth, which affects temperature.
Step-by-step explanation:
The pattern of average July temperatures is influenced most strongly by various factors. However, when choosing the most significant factor, latitude plays the largest role in determining these temperature patterns. The closer a region is to the equator, the higher the average temperatures tend to be due to the direct angle of the sun's rays hitting the Earth. Conversely, regions closer to the poles experience cooler average temperatures because the sun's rays strike the surface at a more oblique angle. Factors like elevation, ocean currents, and precipitation also contribute to temperature variation, but the overarching impact of latitude generally predominates these other elements in shaping temperature patterns.