630  
CDUS46 KMTR 180838  
CLILVK  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
1238 AM PST MON DEC 18 2023  
   
...............................
 
 
   
..THE LIVERMORE AIRPORT CLIMATE SUMMARY FOR DECEMBER 17 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1930 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 58 12:41 PM 74 1958 57 1 55  
MINIMUM 40 3:26 AM 22 1965 37 3 30  
AVERAGE 49 47 2 43  
 
PRECIPITATION (IN)  
YESTERDAY 0.06 0.85 1977 0.10 -0.04 0.00  
MONTH TO DATE 0.20 1.48 -1.28 2.62  
SINCE OCT 1 0.85 3.91 -3.06 4.45  
SINCE JAN 1 12.12 13.86 -1.74 6.50  
 
DEGREE DAYS  
HEATING  
YESTERDAY 16 18 -2 22  
MONTH TO DATE 248 288 -40 325  
SINCE DEC 1 248 288 -40 325  
SINCE JUL 1 616 745 -129 822  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 928 849 79 1195    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION E (70)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 5.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 9:00 PM  
LOWEST 61 11:00 AM  
AVERAGE 75  
   
......................................................
 
 
THE LIVERMORE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 76 1958  
MINIMUM TEMPERATURE (F) 37 23 1965  
 
SUNRISE AND SUNSET  
DECEMBER 18 2023......SUNRISE 7:17 AM PST SUNSET 4:51 PM PST  
DECEMBER 19 2023......SUNRISE 7:18 AM PST SUNSET 4:51 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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