510  
CDUS46 KMTR 210827  
CLIOAK  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
127 AM PDT SUN MAY 21 2023  
   
...............................
 
 
   
..THE OAKLAND AIRPORT CLIMATE SUMMARY FOR MAY 20 2023
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1948 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 62 2:13 PM 85 2017 68 -6 75  
MINIMUM 53 5:37 AM 46 1953 52 1 52  
AVERAGE 58 60 -2 64  
 
PRECIPITATION (IN)  
YESTERDAY T 1.11 1957 0.02 -0.02 0.00  
MONTH TO DATE 0.98 0.45 0.53 0.00  
SINCE OCT 1 30.75 18.18 12.57 16.87  
SINCE JAN 1 17.79 11.44 6.35 1.85  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0 1985  
MONTH TO DATE MM  
SINCE MAR 1 MM  
SINCE JUL 1 MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 7 5 2 1  
MONTH TO DATE 134 118 16 128  
SINCE MAR 1 842 661 181 692  
SINCE JUL 1 2820 2547 273 2367  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 2 0 2 0  
SINCE MAR 1 3 5 -2 4  
SINCE JAN 1 3 5 -2 4    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION W (260)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 12.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 2:00 AM  
LOWEST 67 1:00 PM  
AVERAGE 80  
   
......................................................
 
 
THE OAKLAND AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 93 2000  
MINIMUM TEMPERATURE (F) 52 46 1962  
 
SUNRISE AND SUNSET  
MAY 21 2023...........SUNRISE 5:55 AM PDT SUNSET 8:17 PM PDT  
MAY 22 2023...........SUNRISE 5:54 AM PDT SUNSET 8:18 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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