It includes the neighborhoods of Neustadt, Bleiche, and Stacherholz. This industrial area has a limit placed on new development. Stachen and Frasnacht are independent parts of the municipality that were incorporated in 1998. Stachen and Arbon have grown together, but there is still a rural stretch between Frasnacht and the other two. Climate Lake Constance assures that the climate in Arbon is mild, both summer and winter. The warm winds from the west bring heavy rainfall as they meet the dry, cold, continental winds from the northeast. The warm Föhn that comes over the Alps from the south is felt as far as Arbon. In the summer, warm electrical storms are common. Arbon has a storm warning system for boats on Lake Constance and works closely with neighboring towns. Average January temperatures lie between . Average July temperatures range from . Average annual precipitation is between 80 and 100 cm. The prevailing winds make Lake Constance a favorite for sailing and wind surfing. In the winter, ponds and the lake slowly freeze. In 1963, Lake Constance froze over, something that only happens about every 100 years. History The shores of Lake Constance near Arbon have been inhabited since the Stone Age. Archaeological digs in 1885 and 1944 have uncovered stilt houses from the Stone and Bronze Ages. At first, it was assumed that these were built over water, since they were raised on stilts. However, it is now known that they were on the shore and were built in this fashion because the ground was swampy. During Roman times, Bergli was probably a Roman fort. The raised situation and view over the lake were strategically important. Since 1957, regular excavations have shown the remains of late Roman fortifications. The Latin name of Arbon, Arbor Felix (meaning happy tree), first appears in around 280 and is mentioned in the Itinerarium Antonini in 300. According to the chronicles of Ammianus Marcellinus, the emperor Gratian passed by Arbon in 378 as he hurried to join his uncle Valens, who was marching to confront the Goths at Battle of Adrianople. In the 8th century, the area became part of the territory of the Franks. In 610, Irish monks who were followers of Columban of Luxeuil settled in Arbon. They found a small Christian settlement called Castrum there. One of these monks was St. Gallus, the founder of the monastery of St. Gallen. He died