200 



THE CLIMATE OF CALVERT COUNTY 



the least falls in November, average 2.41 inches, which is 6 per cent of 

 the annual. The distribution is seen to be quite uniform in character. 

 During the past 14 years Solomons has not received a monthly total of 

 as much as 10 inches; the greatest amount was 7.88 inches in August, 

 1898. On the other hand amounts of less than 1.00 inch are of occa- 

 sional occurrence, as in February, 1901, monthly total 0.37 inch, Septem- 

 ber, 1895 (0.76 inch), September, 1897 (0.50 inch), October, 1892 (0.67 

 inch), November, 1899 (0.93 inch), November, 1905 (0.40 inch) and 

 December, 1896 (0.92 inch). The possible rdnge is from 7.88 inches to 

 0.37 inch. The driest year was 1894. 



Fig. 11. — Precipitation for each month in the year at Solomons. — (a) greatest, 



(b) average, (c) least. 



Calvert County does not rank very high as regards excessive rainfalls 

 during brief intervals of time, as shown by the footings of Table XIV. 

 The amount usually considered an excessive rate in 24 hours is 2.50 

 inches, in 1 hour 1.00 inch. It appears from the table that the excessive 

 rate (2.50 inches in 24 hours) has occurred in the following months: 

 February, 1896 (3.75 inches), March, 1903 (2.95 inches). May, 1905 

 (2.67 inches), June, 1897 (2.92 inches), July, 1902 (3.60 inches), 

 August, 1900 (5.53 inches), September, 1899 (3.45 inches), October, 

 1902 (3.20 inches), and November, 1893 (2.50 inches). The heaviest 

 rainfall in 24 hours was 5.53 inches August 23, 1900. 



