the mainland interior the averages range from 39 to 49 inches. The geographic 

 distribution of snowfall based on the tabular data is shown on the figure 

 below. Large variations may occur within short distances in the hilly sec- 

 tions, so that for these areas the map should only be used as a guide. 



Figure k. Mean annual snowfall in inches over the Long Island Sound Region, 

 January 1951 to December 1970. 



Four of the tables listed in Appendix C give the mean and greatest 

 monthly and annual number of days with snowfall equal to or greater than 1, 

 2, k and 8 inches. Since there are many years without snowfalls of k inches 

 or more in the region, only two tables for the least number of snowfalls equal 

 to or greater than 1 and 2 inches were prepared. 



Snow cover data from 13 stations in and north of the study area, 

 presented in maps and tables give (1) the mean, maximum and least number of 

 periods per season of 3 days or longer with snow depth equal to or greater 

 than 1 and 6 inches; (2) the mean, median, maximum and minimum number of days 

 involved and (3) the mean, median, greatest and least days per period. The 

 tables also provide information of the first day-first period and last day- 

 last period dates for various probability levels. 



11 



