May in L'Ancienne-Lorette is the rainiest month of the year. In May, the weather in L'Ancienne-Lorette is typically warm. Average daily high temperature in May is about 14 degrees above zero. On average, L'Ancienne-Lorette has 18 rainy, 6 sunny, 6 partly cloudy, and 1 cloudy day in May. The rains are usually moderate. May as well as January, April, October, and November is considered the most uncomfortable time to visit L'Ancienne-Lorette.