The high humidity in Florida and Jacksonville’s record-high temperature of 105 degrees can cause trouble for air conditioner units. Mold and algae growth are common in these conditions, which can help trap dirt and dust inside your components. The average summer dew point in Jacksonville is in the lower to mid-70s, which makes the oppressive heat feel worse. This is why it pays to have regular maintenance and cleaning performed by HVAC professionals to keep your system running as smoothly as possible.