OCN is a three letter abbreviation that stands for: 1  OCLC Control Number, a bibliographic record identifier. 2  In Oncology nursing, an Oncology Certified Nurse. 3  Opaskwayak Cree Nation. 4  Open College Network.
Autumn is from September to November and is characterised by light breezes and cooler temperatures of around 46-50ÂºF. Itâs during autumn that many exhibitions, music concerts and sports tournaments are held in Japan.
The highest monthly average temperature is 32.2 degrees Celsius (90 degrees Fahrenheit). The hottest summer weather is to be found around Tokyo and in some other parts of Honshu, Japan's main island, where the temperature can reach almost 40 degrees Celsius (104 degrees Fahrenheit).