243  
CDUS46 KMTR 130028  
CLISJC  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
528 PM PDT FRI MAY 12 2023  
   
...............................
 
 
   
..THE SAN JOSE AIRPORT CLIMATE SUMMARY FOR MAY 12 2023
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1893 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 74 1:35 PM 99 1976 73 1 67  
MINIMUM 51 4:12 AM 35 1896 52 -1 44  
AVERAGE 63 62 1 56  
 
PRECIPITATION (IN)  
TODAY 0.00 0.32 1925 0.02 -0.02 0.00  
1977  
MONTH TO DATE 0.44 0.20 0.24 T  
SINCE OCT 1 15.22 12.99 2.23 7.29  
SINCE JAN 1 10.11 8.84 1.27 0.65  
 
SNOWFALL (IN)  
TODAY MM 0.0 1947  
MONTH TO DATE MM  
SINCE MAR 1 MM  
SINCE JUL 1 MM  
 
DEGREE DAYS  
HEATING  
TODAY 2 4 -2 9  
MONTH TO DATE 87 52 35 71  
SINCE MAR 1 701 527 174 480  
SINCE JUL 1 2362 2110 252 1886  
 
COOLING  
TODAY 0 1 -1 0  
MONTH TO DATE 0 12 -12 4  
SINCE MAR 1 13 25 -12 20  
SINCE JAN 1 13 25 -12 20    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION NW (330)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 5.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 5:00 AM  
LOWEST 53 1:00 PM  
AVERAGE 71  
   
......................................................
 
 
THE SAN JOSE AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 99 1976  
MINIMUM TEMPERATURE (F) 52 37 1896  
1908  
 
SUNRISE AND SUNSET  
MAY 12 2023...........SUNRISE 6:02 AM PDT SUNSET 8:07 PM PDT  
MAY 13 2023...........SUNRISE 6:01 AM PDT SUNSET 8:08 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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