MARYLAND WEATHER SERVICE 35 



The climatology of Maryland has received exhaustive treatment in 

 the first two volumes of the publications of the Maryland Weather 

 Service and in the County Reports of the Maryland Geological Sur- 

 vey. For all detailed information as to the climatology of the state 

 the reader is referred to these publications. It is my purpose here to 

 set forth only a few of the most general features of climatology which 

 are of direct importance to vegetation. 



For purposes of comparison of the temperature and rainfall of 

 the different sections of the state I have secured data covering the 

 eleven years from 1893 to 1903 for seven places about equidistant 

 from each other along the longest axis of the state. These stations 

 which may be located by the accompanying map are as follows: 



Station County Zone 



Sunnyside Garrett Mountain 



Boettcherville Allegany Midland 



Green Spring Furnace. . . . Washington Midland 



Frederick Frederick Midland 



Baltimore Midland 



Easton Talbot Coastal 



Pocomoke City Worcester Coastal 



Temperature. — Following are the Temperature Data : 

 Mean Monthly and Annual Temperatures, 1893-1903. 



RnettrliP.- Green Poco- 



Simnyside. IVvi" Sprinjj Frederick. Baltimore. Easton. moke 



ynw - Furnace. City. 



Jan 20.3 29.5 30.S 31.1 33.2 33.2 3S.1 



Feb 23.6 29.3 30.1 31.3 32.9 33.2 36.2 



Mar 37.0 41.4 42.0 43.1 43.7 44.6 47. 8 



Apr 45.4 51.5 51.6 52.9 53.3 53.1 54.8 



May 57.2 63.4 63.5 64.0 64.2 63.7 65.2 



June 64.0 70.9 70.9 71.8 72.3 71.2 73.2 



July.... 68.3 74.S 75. S 77.1 77.7 77.0 78.5 



Aug 66.3 72.4 73.8 74.6 75.5 75.1 76.6 



Sept. ...60.9 66.1 67.2 68.3 69.3 69.4 71.0 



Oct 49.5 53.9 54.2 56.3 57.6 57.6 60.9 



Nov 3S.0 42.7 43.4 44.9 46.4 46.1 51.5 



Dec 28.9 32.9 32.5 34.S 36.8 36.7 41.7 



Year 47.1 52.4 53.0 54.2 55.2 55.1 5S.0 



