The monthly data on visitor's number collected from Chitou Forest Recreation Area (CFRA) during the period of 1973-1989 was studied. It was found that there is a significant monthly pattern in number of visitor for the CFRA. During the following period, January to February, March to April, June to July, September to October, October to November and December to next January, the chance for the number of visitor to increase was found to be 76%, 88%, 100%, 76%, 64%, and 76%. On the other hand, number of visitor were decreased during the following period, February to March, April to May, May to June., July to August, August to september, and November to December. The probability of the number of visitor to decrease was 88%, 70%, 94%, 76%, 92% and 100%, respectively.