June is the beginning of the warm to the hot summer season in New Jersey, with the average temperatures in the sunny 76°F (24.4°C) to 83°F (28.3°C) range. The days are long and bright, with moderate rain in the form of thunderstorms. Nights are cold and regularly below 56°F (13.3°C) in the northwest regions of Lambertville and Somerville. In South Jersey, the Belleplain State Forest is a popular tourist sport with temperatures in the zone of 76°F (24.4°C) to 83°F (28.3°C). The long days and 9 hours of daily sunshine keep the ocean waters mild. Crowds gather on the beaches and scale the heights of the wilderness in the forests and mountains. Hiking, trekking, biking, and camping are popular in the pleasant weather. The growing season is in advance stages with cranberries and blueberries ripe for the picking. Occasional tornadoes may cross the Atlantic shores and bring heavy rainfall inland. Keep an eye on the weather for thunderstorms in June in New Jersey.