August is a hot summer month in New Jersey, with the southern parts often registering more than 85°F (29.4°C). The average high temperatures are in the hot 77°F (25°C) to 87°F (30.6°C) zone, with sticky heat and partly cloudy skies. Sweatshirts and light summer clothing are the order of the day, with sunscreen and sunglasses mandatory on the beach. The mid-day sun, at its full intensity, reaches scorching levels in the summer. The vicinity of lake waters is an excellent idea to keep cool, and a fishing rod in hand makes the day enjoyable. August averages 3" (76mm) to 5" (127mm) of rainfall, with occasional storms in the air. The urban heat island effect is prominent in the central parts of New Jersey and results in a rise in temperatures by a few degrees. Light sweatshirts are usually sufficient during the day, while nights frequently need air-conditioners to beat the humidity. The end of August sees a steady dip in temperatures and humidity in New Jersey.