402 TRANSACTIONS OF THE 



SANTA CLARA COUNTY. 



Santa Clara, one of the most prominent agricultural counties in the 

 State, is bounded on the north by Alameda, on the south by San Benito, 

 on the east by Stanislaus and Merced, and on the west by San Mateo and 

 Santa Cruz. A well defined valley runs through it, formed by the Coast 

 Range proper, and Monte Diablo chain. Mt. Bache is the highest point 

 on the west, whilst Mt. Day, Mt. Hamilton (4,009 feet), and Blue Ringe 

 and Pacheco Peak, tower up on the west. 



Lick Observatory. 



A summary of the meteorological observations, of each month of the 

 year from January, 1881-85, to December, 1881-85, at the Lick Observa- 

 tory, Mt. Hamilton: 



January. 



Highest temperature in January, 1881-85, 64°. 

 Lowest temperature in January, 1881-85, 14°. 

 Extreme range of temperature in January, 1881-85, 50°. 

 Mean maximum temperature for January, 1881-85, 47°. 

 Mean annual maximum temperature for 1881-85, 63°. 

 Mean minimum temperature for January, 1881-85, 34°. 

 Mean annual minimum temperature for 1881-85, 45°. 



Number of days on which rain or snow fell: In January, 1881, 11; 1882, 10; 1883, 4; 1884, 

 8; 1885, 6. 

 What winds bring rain and snow : 



Rain with N. winds times 



Rain with N.E. winds times 



Rain with E. winds times 



Rain with S.E. winds ...14 times 



Greatest rainfall in January, 1881-85, 5.60 inches. 



Least rainfall in January, 1881-55, 1.99 inches. 



Extreme range of rainfall in January, 1881-85, 3.61 inches. 



Mean rainfall in January, 1881-85, 3.47 inches. 



Mean annual rainfall in 1881-84, 43.74 inches. 



February. 



Highest temperature in February, 1881-85, 71°. 

 Lowest temperature in February, 1881-85, 12°. 

 Extreme range of temperature in February, 1881-85, 59°. 

 Mean maximum temperature for February, 1881-85, 50°. 

 Mean annual temperature for 1881-85, 63°. 

 Mean minimum temperature for February, 1881-85, 33°. 

 Mean annual minimum temperature for 1881-85, 45°. 



Number of days on which rain or snow fell in February, 1881, 12; 1882, 7; 1883, 5; 1884, 

 10 ; 1885, 3. 

 What winds bring rain and snow : 



Rain with S. winds 7 times. 



Rain with S.W. winds 1 time. 



Rain with W. winds times. 



Rain with N.W. winds ...I time. 



Rain with N. winds, times. 



Rain with N.E. winds 1 time. 



Rain with E. winds times. 



Rain with S.E. winds 10 times. 



Greatest rainfall in February, 1881-85, 12.76 inches. 



Least rainfall in February, 1881-85, 0.57 inches. 



Extreme range of rainfall in February, 1881-85, 12.19 inches 



Mean rainfall in February, 1881-85, 5.19 inches. 



Mean annual rainfall in 1881-85, 43.74 inches. 



March. 



Highest temperature in March, 1881-85, 80°. 

 Lowest temperature in March, 1881-85, 18°. 

 Extreme range of temperature in March, 1881-85, 62°. 

 Mean maximum temperature for March, 1881-85, 55°. 

 Mean annual maximum temperature for 1881-85, 63°. 

 Mean minimum temperature for March, 1881-85, 34°. 

 Mean annual minimum temperature, 1881-85, 45°. 



Rain with S. winds 6 times. 



Rain with S.W. winds 2 times. 



Rain with W. winds times. 



Rain with N.W. winds 4 times. 



