252 UNIVERSITY OF CALIFORNIA EXPERIMENT STATION 



TABLE 1. MINIMUM AND MAXIMUM TEMPERATURES, JANUARY 5-7, 1913, IN 

 VARIOUS PARTS OP CALIFORNIA 



Minimum temperature Maximum temperature 



Stations 5th 6th 7th 5th 6th 7th 



Azusa 25 22 20 48 49 54 



Bakersfield 28 16 14 52 49 40 



*Beaumont 20 16 24 25 32 38 



Chino 30 28 16 44 42 44 



Claremont 27 25 19 47 42 49 



Colton 28 27 19 42 35 47 



*Duarte 28 28 .... 45 46 



El Cajon 30 20 21 52 46 54 



Escondido 32 15 13 56 42 45 



Exeter 17 17 19 54 52 51 



Fresno 24 17 20 39 39 44 



Lemon Cove 22 18 20 65 52 56 



Los Angeles 36 ' 30 28 49 47 50 



Monrovia 28 24 18 50 45 50 



Pasadena 31 25 21 47 43 50 



Pomona 25 21 18 48 43 51 



Porterville 22 20 18 41 46 48 



Eedlands 31 22 18 42 36 50 



Biverside 30 21 22 48 41 55 



San Bernardino 31 26 18 46 35 53 



San Diego 36 28 25 47 45 49 



Three Bivers 28 17 16 40 39 44 



Ojai Valley J 28 13 13 49 50 55 



Santa Barbara 28 27 30 52 44 58 



*Tustin (Irvine 



Eanch) 48 32 34 70 50 56 



At stations marked (*) the minimum temperatures were taken at 7 A.M., and 

 are probably not so low as the true minimum. The maximum records of these 

 stations were taken at 2 P.M., and are probably lower than the true maximum. 



Frosts during the winter months are not uncommon in southern 

 California, and it often happens that a certain amount of loss of fruit 

 results from low temperatures, especially in low places where the 

 citrus area has been extended out beyond its adaptable sphere. Abbot 

 Kinney in his book on Eucalyptus refers to an unprecedented frost 

 in 1893. In 1898 in certain sections, severe damage was experienced, 

 and again in December, 1912, a very heavy frost occurred, but the 

 freeze of January, 1913, was probably more severe and widespread 

 than any ever experienced here within the memory of white man. 



Maximum and minimum thermometers, although of much greater 

 value and satisfaction than the ordinary instruments, are in them- 

 selves of little real value, unless it is possible to compare these recorded 

 temperatures with the story as pictured by thermograph records taken 



