CHAPTER XX. 
TABLES OF TEMPERATURE, PRECIPITATION, AND HUMIDITY IN 
THE PRINCIPAL FIG REGIONS. 
The following tables have been compiled for this bulletin by the 
Weather Bureau of the United States Department of Agriculture. 
As the temperatures are given in degrees centigrade and Fahrenheit, 
a table is appended showing the relative value and corresponding 
degrees of the three principal thermometers in use. Precipitation is 
expressed in inches or millimeters. In order to reduce inches to mil- 
limeters multiply the given number of inches by 25, or, to be more 
accurate, divide the given number of inches by 4 and then multiply 
by 99. On the contrary, in reducing millimeters to inches divide the 
given number of inches by 25, or, to be more accurate, divide by 99 and 
multiply the quotient by 4. As 4 inches equal about 99 millimeters, the 
difference between the first method and the second is so slight as to 
be of little importance, making a difference of but three-fourths inch 
in 25 inches. The localities in the Old World have been selected as 
being representative places where figs are successfully grown. From 
Portugal no records have been obtainable. The localities in the 
United States have been selected, not because they are actually prom- 
inent fig districts, but in order to give a general idea of the conditions 
under which fig culture is practiced in this country. It is safe to 
say that the ideal tig districts in America have not yet been deter- 
mined. Localities which as much as possible resemble the climato- 
logical conditions of the southern Mediterranean countries will prob- 
ably be found to be the most suitable for the fig industry. 
Table for comparison of thermometers. 
Fahren- Centi- 3 | Fahren- Centi- 
Hole grade. Reaumur. neat grade. | Reaumur. 
212 100.0 80.0 168 75.6 60.4 
210 98.9 79.1 166 74.4 59.6 
208 97.8 78.2 164 73.3 58.7 
206 96.7 17.3 162 72.2 57.8 
204 95.6 76.4 160 W1.1 56.9 
202 94. 4 75.6 158 70.0 56.0 
200 93.3 74.7 156 68.9 Donk 
198 92.2 73.8 154 67.8 54.2 
196 91.1 72.9 152 66.7 53.3 
194 90.0 72.0 150 65.6 52.4 
192 88.9 lem 148 64.4 51.6 
190 87.8 70.2 146 63.3 50.7 \ 
188 86.7 69.3 144 62.2 49.8 
186 85.6 68. 4 142 61.1 48.9 
184 84.4 67.6 140 60.0 48.0 
182 83.3 66.7 138 58.9 47.1 
180 2.2 65.8 136 57.8 46.2 
178 81.1 64.9 134 56.7 45.3 
176 80.0 64.0 132 55.6 - 44.4 
174 78.9 63.1 130 54.4 43.6 
172 77.8 2.2 \| 128 53.3 42.7 
170 76.7 61.3 | 126 52. 2 41.8 
