88 FLORIDA GEOLOGICAL SURVEY—FOURTH ANNUAL REPORT. 
stations within the area covered by this paper, Pensacola, DeFuniak 
Springs and Tallahassee. 
The averages for both rainfall and temperature at Pensacola are 
based on the records at this station from 1879 to 1903. The averages 
for rainfall and temperature at DeFuniak Springs are obtained from 
the records from 1896 to 1903. The averages for rainfall and tem¬ 
perature at Tallahassee are based on records from 1891 to 1903.* 
TEMPERATURE. 
Pensacola is located on the Gulf of Mexico near the west line 
of the State. The mean annual temperature at Pensacola is 68 
degrees Fahrenheit. The mean temperature for the four seasons 
of the year are as follows: Winter 54 F.; Spring 67 F.; Summer 
81 F.; Fall 69 F. The absolute maximum of summer heat recorded 
at Pensacola is 103. 
Fig. 5.—Illustrating structures that may prevail in an artesian slope; 
a. a previous water-bearing stratum which pinches out between impervious 
strata; b. a pervious water-hearing stratum which grades into a less per¬ 
vious stratum; c. a pervious water-bearing stratum in which the artesian 
pressure is due merely to the friction of water moving through the pores 
of the rock. 
At DeFuniak Springs in Walton County the mean annual tem¬ 
perature is 67 degrees Fahrenheit. The mean temperature for the 
four seasons of the year is as follows: Winter 51; Spring 67; Sum¬ 
mer 8.1; Fall 68. The absolute maximum summer heat recorded at 
this station is 105. 
At Tallahassee in Leon County the mean annual temperature is 
67 degrees Fahrenheit. The mean for the four seasons of the year 
is as follows: Winter 53; Spring 67; Summer 80; Fall 68. The 
absolute maximum summer heat recorded at this station is 97. 
*Climatology of the United States, by Alfred Judson Henry, Bull. Q, U. S. 
Dept. Agriculture. 
