288  
CDUS46 KMTR 150826  
CLISFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
1226 AM PST FRI DEC 15 2017  
 
   
...............................
 
 
   
..THE SAN FRANCISCO DWTN CA CLIMATE SUMMARY FOR DECEMBER 14 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1850 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 67 143 PM 69 1988 57 10 61  
MINIMUM 47 643 AM 35 1972 46 1 52  
AVERAGE 57 52 5 57  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.81 1880 0.14 -0.14 0.07  
MONTH TO DATE 0.02 1.93 -1.91 2.21  
SINCE OCT 1 3.16 6.21 -3.05 6.85  
SINCE JAN 1 26.57 21.02 5.55 23.34  
 
DEGREE DAYS  
HEATING  
YESTERDAY 8 MM MM 8  
MONTH TO DATE 124 MM MM 158  
SINCE DEC 1 124 MM MM 158  
SINCE JUL 1 669 MM MM 874  
 
COOLING  
YESTERDAY 0 MM MM 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 226 0 226 93    
..............................................................
 
 
 
THE SAN FRANCISCO DWTN CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 71 1980  
MINIMUM TEMPERATURE (F) 46 36 1972  
 
 
SUNRISE AND SUNSET  
DECEMBER 15 2017......SUNRISE 718 AM PST SUNSET 452 PM PST  
DECEMBER 16 2017......SUNRISE 719 AM PST SUNSET 452 PM PST  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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