However, the legacy of the 1980s boom remains even today where the outlying areas of Puerto Vallarta suffer from poor provision of basic services (i.e. water, sewage, roads). In 1993, the federal Agrarian Law was amended allowing for more secure foreign tenure of former "ejido" land. Those controlling "ejido" land were allowed to petition for regularization, a process that converted their controlling interest into fee simple ownership. This meant that the property could be sold, and it led to a boom in the development of private residences, mostly condominiums, and a new phase of Puerto Vallarta's expansion began, centered more on accommodating retirees, snowbirds, and those who visited the city enough to make purchasing a condominium or a time-share a cost-effective option. Puerto Vallarta's climate is typical Tropical wet and dry (Köppen climate classification "Aw"). The average daily high temperature is ; average daily low temperature is ; average daily humidity is 75%. The rainy season extends from mid June through mid October, with most of the rain between July and September. August is the city's wettest month, with an average of 14 days with significant precipitation. Even during the rainy season precipitation tends to be concentrated in large rainstorms. Occasional tropical storms will bring thunderstorms to the city in November, though the month is typically dry. There is a marked dry season in the winter. February, March and April are the months with the least cloud cover. Prevailing winds are from the southwest, and most weather systems approaching Puerto Vallarta are consequently weakened as they pass over Cabo Corrientes. Thus even during the rainy season Puerto Vallarta's weather tends to be mild compared to other areas along the Mexican Pacific coast. Hurricanes seldom strike Puerto Vallarta. In 2002, Hurricane Kenna, a category 5 hurricane, made landfall about northwest of Puerto Vallarta, and the city suffered some damage from the resulting storm surge. In 1971, Hurricane Lily, a category 1 hurricane, caused serious flooding on the Isla Cuale, prompting the city to relocate all of its residents to the new Colonia Palo Seco. Hurricane Patricia, a Category 5 storm, became the most powerful cyclone ever measured in the Western Hemisphere with sustained wind speeds up to 200 mph (320 km/h). Hurricane Patricia was forecast to make landfall at Puerto Vallarta on the evening of October 23, 2015, with catastrophic damage predicted for the town and surrounding areas and the potential for mud slides.