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 average winter temperature in Japan is 5.1 Â°C (41.2 Â°F) and the average summer temperature is 25.2 Â°C (77.4 Â°F). The highest temperature ever measured in Japan 40.9 Â°C (105.6 Â°F) was recorded on August 16, 2007.