847  
CDUS46 KMTR 200838  
CLILVK  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
1238 AM PST TUE DEC 20 2022  
   
...............................
 
 
   
..THE LIVERMORE AIRPORT CLIMATE SUMMARY FOR DECEMBER 19 2022
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1930 TO 2022  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 42 1:39 PM 70 1958 57 -15 45  
MINIMUM 35 3:10 AM 23 1965 37 -2 34  
AVERAGE 39 47 -8 40  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.13 2010 0.09 -0.09 0.00  
MONTH TO DATE 2.62 1.66 0.96 2.07  
SINCE OCT 1 4.45 4.09 0.36 8.00  
SINCE JAN 1 6.50 14.04 -7.54 12.16  
 
DEGREE DAYS  
HEATING  
YESTERDAY 26 18 8 25  
MONTH TO DATE 375 324 51 328  
SINCE DEC 1 375 324 51 328  
SINCE JUL 1 872 781 91 722  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1195 849 346 1089    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION NE (60)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 9.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 12:00 AM  
LOWEST 82 2:00 PM  
AVERAGE 91  
   
......................................................
 
 
THE LIVERMORE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 67 1969  
MINIMUM TEMPERATURE (F) 37 23 1978  
 
SUNRISE AND SUNSET  
DECEMBER 20 2022......SUNRISE 7:18 AM PST SUNSET 4:52 PM PST  
DECEMBER 21 2022......SUNRISE 7:19 AM PST SUNSET 4:52 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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