305  
CDUS46 KMTR 200828  
CLILVK  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
127 AM PDT SUN MAY 20 2018  
 
   
...............................
 
 
   
..THE LIVERMORE AIRPORT CLIMATE SUMMARY FOR MAY 19 2018
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1930 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 65 259 PM 97 1952 76 -11 90  
MINIMUM 51 1206 AM 38 1974 50 1 49  
AVERAGE 58 63 -5 70  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.48 1957 0.01 -0.01 0.00  
MONTH TO DATE 0.00 0.49 -0.49 0.00  
SINCE OCT 1 11.28 15.31 -4.03 25.35  
SINCE JAN 1 9.29 9.73 -0.44 18.89  
 
DEGREE DAYS  
HEATING  
YESTERDAY 7 4 3 0  
MONTH TO DATE 63 88 -25 69  
SINCE MAR 1 675 703 -28 562  
SINCE JUL 1 2401 2710 -309 2421  
 
COOLING  
YESTERDAY 0 2 -2 5  
MONTH TO DATE 1 24 -23 36  
SINCE MAR 1 5 33 -28 36  
SINCE JAN 1 5 33 -28 36    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION W (260)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 12.3  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1200 AM  
LOWEST 63 1200 PM  
AVERAGE 82  
   
......................................................
 
 
 
THE LIVERMORE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 99 2001  
MINIMUM TEMPERATURE (F) 50 40 1976  
 
 
SUNRISE AND SUNSET  
MAY 20 2018...........SUNRISE 554 AM PDT SUNSET 814 PM PDT  
MAY 21 2018...........SUNRISE 553 AM PDT SUNSET 815 PM PDT  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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