New York Weather Bureau. 487 



inches over the largesft value at any low level station in the 

 vicinity. Liberty, in the mountainous region of Sullivan county, 

 also shows the direct influence of the sea wind both by its large 

 annual precipitation and by a pronounced secondary maximum 

 in winter; the latter feature disappearing at stations further 

 northward. 



Western New York receives an appreciable portion of its vapor 

 supply from the Gulf of Mexico, judging from the frequent south- 

 wesiterly direction of the rajn- winds; and also from similarities 

 existing between the rain types of the Lower Lakes and those of 

 the Gulf and the Mississippi and Ohio valleys. The total pre- 

 cipitation over the depressed area occupied by the lakes is rather 

 below the average for the State; but wherever the surface rises 

 abruptly from their shores the amount rapidly increases and 

 considerablv exceeds that common to eaual altitudes in the in- 

 terior. The winter maximum appears prominently in a large 

 snowfall over the southwestern highlands and still more so 

 through a section including the hills of Lewis county, the uppre 

 Mohawk valley and an adjacent spur of the eastern highlands in 

 Madison county. 



The rainfall in central New York is generally abundant, 

 although somewhat less than that of the southeastern and south- 

 western highlands. A deficiency, as compared with the average 

 for the State, exists in the principal valleys of the Susquehanna 

 system and also into the depression of the Central Lakes. 



No records exist to establish, even approximately, the amount 

 of rainfall in the central Adirondack region. The brief series of 

 observatiouis lobtainable from points near the eastern and western 

 limits of the plateau have been carefully analyzed by comparison 

 of individual monthly values with those of the adjacent stations 

 in the Champlain and St. Lawrence valleys, the highlands show- 

 ing a marked excess in all cases. The amounts of rain in the 

 interior shown by the accompanying charts were estimated from 

 the data of border stations, somewhat modified by the character 

 of local topography. 



