Fall of Rain and Snoto at Wallingford, Conn. 

 Table XII. — Mtll of snow, in inches, Wallingford, Conn. 



261 



Table XIII. — JSFo. of days when rain or snow fell, Wallingford, Ct. 



Table XIII sliows the uunibei- of days foi* eacli month of each year 

 during which rain or snow fell. A day is here regarded as 24 consec- 

 utive hours. The record sometimes mentions rain or snow as having 

 fallen during the day time, and also during the preceding or succeed- 

 ing night. Such cases are counted as but one day, except when the 

 duration of the fall exceeded twenty-four hours. In a few of the 

 cases here enumerated, the amount of the rain or snow which fell was 

 too small to be measured. From AprU, 1856, to August, 1862, the 

 record was kept for the Smithsonian Institution, and in conformity 

 with their instructions special care was taken to record the time of 

 the beginning and end of each fall of rain and snow. In the subse- 

 quent observations, which were not made for the Smithsonian Institu- 

 tion, less care was observed to note the time of beginning and end of 

 the periods of rain and snow. This may perhaps explain the fact that 

 the total number of days when rain or snow fell during the years 1 856 



