MARYLAND GEOLOGICAL SURVEY 



167 



August, 1900, but the record for that mouth is somewhat incomplete. 

 Mean minimum temperatures below 20.0° were recorded in February, 

 1895 (mean 16.3°), and February, 1899 (mean 17.6°). 



TABLE XVIIL 

 Mean Maximum Temperatures at Charlotte Hall, Md. 



1897. 

 1S98. 

 1899. 

 1900. 

 1901. 



47.0 47.8 69.9 



63.5 I 

 64.8 

 70.3 

 f.6.4 



46.4 

 47.1 

 45.8 

 41.2 



81.3 I 80.0 

 73.6 79.0 

 76.1 85.9 



91.0 



86.9 

 83.8 

 89.0 

 86.8 

 95.1 



53.4 

 .52.4 

 66.9 

 04.4 

 68.4 

 66.2 

 68.6 

 60.5 

 50.5 



49.3 



60.4 



46.0 



53.6 



48.3 1 



45.0 



Highest Mean. 

 Lowest Mean.. 

 Range 



47.3 47.8 

 39.7 35.4 

 7.6 12.4 



53.6 n.T 

 40.5 61.5 

 13.0 10.3 



TABLE XIX. 

 Mean Minimum Tempeeatukes at Charlotte Hall, Md. 



The curves of mean temperature and of mean maximum and mean 

 minimum for Charlotte Hall are given in Fig. 9, which conveniently 

 shows the range in average values for this station. 



