There are three main seasons: summer, monsoons and winter. The summer season extends from the first week of March to the second week of June, with April being the hottest month. Summer temperatures range in the mid-30s C. The monsoons (June and September) bring severe rain. 125 mm or more may fall in 24 hours, bringing all activity to halt and often causing local floods and landslides. Annual rainfall may exceed 250 cm. Winters (September-February) can be chilly, with cold winds from the Himalayas. Temperatures may fall as low as 5 °C during this period.