International School of Islamabad International School of Islamabad International School of Islamabad (ISOI) is an international school in Islamabad, Pakistan, serving K-12. Established in 1965, it moved to its present site in Islamabad in 1975. Previously it was located in Rawalpindi. The United States Military Advisory Aid Group (USMAAG) established a one-room school in Rawalpindi, Pakistan in 1965; the school moved to a prefabricated building located on of land in January 1966. While the school was in Rawalpindi it served grades K-8. Initially the younger students directly took classes while correspondence course were used for higher grade levels. Wives of UMAAG employees taught the
Climate of Islamabad affects the upper and northern parts of Pakistan including Islamabad in every month and season. In this scenario Islamabad can receive heavy showers and rains in every month including March. The highest temperature is and the lowest is . The highest rainfall for March is (1984). Another Spring month with pleasant temperatures. The weather pattern of Islamabad in April is identical to that of March. The weather at few times gets hot in this month, the highest temperature recorded was (2006) and lowest temperature is (1994). Humidity remains low in this month about 24%. While the highest rainfall is (1983).