How much snow did you get?
Python, 153 characters

s=raw_input()
R=range(8)
C=[s[i::9].count('*')for i in R]
print"%d|%d|%.1f|%d"%(min(C),max(C),sum(C)/8.,max(8-s[i::9].find('*')-C[i]for i in R if C[i]))