175  
CDUS46 KMTR 220045  
CLILVK  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
545 PM PDT MON APR 21 2025  
   
...............................
 
 
   
..THE LIVERMORE AIRPORT CLIMATE SUMMARY FOR APRIL 21 2025
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1930 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 82 3:21 PM 94 2009 70 12 84  
MINIMUM 43 5:39 AM 30 1968 45 -2 46  
AVERAGE 63 58 5 65  
 
PRECIPITATION (IN)  
TODAY 0.00 0.45 1967 0.03 -0.03 0.00  
MONTH TO DATE 0.19 0.88 -0.69 1.36  
SINCE OCT 1 8.57 14.11 -5.54 13.71  
SINCE JAN 1 4.38 8.88 -4.50 10.52  
 
DEGREE DAYS  
HEATING  
TODAY 2 8 -6 0  
MONTH TO DATE 141 190 -49 161  
SINCE MAR 1 498 548 -50 498  
SINCE JUL 1 2208 2489 -281 2075  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 2  
SINCE MAR 1 1 0 1 2  
SINCE JAN 1 1 0 1 2    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION S (190)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 3.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 6:00 AM  
LOWEST 27 3:00 PM  
AVERAGE 58  
   
......................................................
 
 
THE LIVERMORE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 89 2013  
MINIMUM TEMPERATURE (F) 46 33 1968  
 
SUNRISE AND SUNSET  
APRIL 21 2025.........SUNRISE 6:24 AM PDT SUNSET 7:49 PM PDT  
APRIL 22 2025.........SUNRISE 6:22 AM PDT SUNSET 7:50 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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