Angeles experiences two distinct seasons: a dry season from December through April, with a wet season from May through November. From 1953 to 1991, the mean daily low was 73.6 °F and the mean daily high was 88.1 °F, with June being warmest and January and February being the coolest. The average annual rainfall is 78.39 inches. Typhoons tend to approach from the east during the summer and fall. Many damaging storms struck the city, including Typhoon Irma on 28 November 1974 (generally considered to be the strongest one); Typhoon Rita on 27 October 1978; Typhoon Irma (the name was reused) on 24 November 1981; Typhoon Ruby on 25 October 1988; and Typhoon Yunya on 15 June 1991 which coincided with the Mount Pinatubo blast. In July 1972, Central Luzon experienced a month of nearly continuous rain, resulting in 96 inches falling on the plain around Angeles.