STATE AGRICULTURAL SOCIETY. 



389 



ing upon the ground more than a few hours. Yet the climate is not unpleas- 

 ant, and as healthy as anywhere in the county. There is found a belt of 

 territory along the sides of the mountains and midway up, that is milder 

 than above or below, where frosts in winter, and extreme heat in summer, 

 are more rare than at less or greater elevation, a fact that few persons have 

 observed, and which is likely to be taken into consideration in the future 

 by those selecting locations for country homes. 



Average Precipitation in San Mateo Count]/. 



era 



e 



3 



c 



2 

 o 



3 



c- 



Afio Nuevo Island _.. 



Crystal Springs 



Iteulo Park 



Pigeon Park 



Pilarcitos 



Point Montara 



St. Andreas Reservoir 



San Mateo 



Woodside 



4.05 

 7.14 



2.7!) 

 2.79 

 7.86 

 4.07 

 6.73 

 3.05 

 10.90 

 * 



2.G2 

 4.07 

 2.26 

 1.76 

 4.03 

 2.42 

 3.81 

 1.84 

 6.17 



0.89 

 1.36 

 0.63 

 1.08 

 1 .79 

 0.95 

 1.31 

 0.57 

 0.20 



0.36 

 0.51 

 0.(14 



0.06 

 0.49 

 0.40 

 0.37 

 0.30 

 3.29 



0.03 

 0.03 

 none 

 0.O1 

 0.03 

 0.01 

 0.01 

 none 

 none 



none 

 none 

 none 

 none 

 none 

 none 

 none 

 0.05 

 none 



2.72 

 3.19 

 0.92 

 1.71 

 6.09 

 2.59 

 4.11 

 1.85 

 0.31 



2.40 

 5.29 

 2.57 

 2.43 



12.35 

 2.19 



10.34 

 2.77 

 1.40 



CONTRA COSTA COUNTY. 



As in most counties of our State, so here, one may find a diversity of cli- 

 mate. Generally speaking, it may be regarded as a happy medium between 

 the chilling fogs of San Francisco and the enervating heat of the interior 

 valleys. The afternoon westerly trade winds, blowing fresh from the ocean, 

 are tempered by the warmer inland air currents, rendering the climate 

 delightful, subject neither to the extremes of heat or cold. In summer 

 the mercury ranges from 70° to 90°; in winter from 40° to 50°, with a few 

 exceptional warmer or colder days. 



The farming lands in the eastern section of the county extend from 

 Bay Point, a spur of Diablo, east, and between the foothills and San Joa- 

 quin River to the county line, being 23 miles in length by from 3 to 6 in 

 width, and embracing about 60,000 acres of arable land. In this tract are 

 the well known Los Medanos and Los Meganos Spanish grants. This land 

 is a rich, alluvial soil, and produces large crops of wheat and barley. To 

 the northward, and between the upland and San Joaquin River, are some 

 50,000 acres of tule land. This land is marvelously productive, the soil is 

 practically inexhaustible, and when made secure from the effects of floods 

 and freshets, by substantial levees, will become the most valuable farming 

 section in the county. 



Average Precipitation in Contra Costa County. 



> 



3 



in 



a 

 e 



c 



> 

 c 

 era 



c 



3 



5* 



2! 

 o 



< 



CD 



3 



a 



to 

 a 

 a> 



3 

 c 



Antioch 



Brentwood 



Byron 



East Brother Island 



Martinez 



Mount Diablo 



2.30 



2.01 



2.47 



0.91 



3.45 



.58 



1.84 



2.09 



.59 



2.45 



99 



.82 

 1.91 

 2.33 



.80 

 2.46 

 1.14 



