The purpose of this paper is to discuss the statistical distribution of snow load and the regional property of snow load factor in Load and Resistance Factor Design method according to annual extreme ground snow depths measured at 362 points in Japan. The probability plot correlation coefficient test proposed by Filliben is used for testing five types of probability distribution functions for their goodness of fit to the data samples. The analysis shows that type I and type III distributions are adequate to describe the obserbed annual extreme ground snow depths in Japan. Snow load factors in combination of dead load and snow load are also discussed.
