426  
CDUS46 KMTR 010828  
CLISFO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
128 AM PDT WED MAY 01 2024  
   
...............................  
 
   
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR APRIL 30 2024  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1927 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 65 2:40 PM 90 1996 67 -2 61  
2014  
MINIMUM 49 5:05 AM 41 1946 50 -1 51  
AVERAGE 57 58 -1 56  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.71 1983 0.02 -0.02 0.00  
MONTH TO DATE 0.77 1.36 -0.59 0.10  
SINCE OCT 1 19.18 18.91 0.27 30.66  
SINCE JAN 1 13.85 11.94 1.91 19.41  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0  
MONTH TO DATE T  
SINCE MAR 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 8 7 1 9  
MONTH TO DATE 212 234 -22 256  
SINCE MAR 1 489 530 -41 647  
SINCE JUL 1 1630 2209 -579 2355  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 5 -5 2  
SINCE MAR 1 1 6 -5 2  
SINCE JAN 1 1 6 -5 2    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 17 RESULTANT WIND DIRECTION W (270)  
HIGHEST WIND SPEED 31 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 16.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 83 5:00 AM  
LOWEST 44 12:00 PM  
AVERAGE 64  
   
......................................................  
 
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 89 1947  
MINIMUM TEMPERATURE (F) 50 44 1983  
1988  
2008  
 
SUNRISE AND SUNSET  
MAY 1 2024...........SUNRISE 6:13 AM PDT SUNSET 8:00 PM PDT  
MAY 2 2024...........SUNRISE 6:12 AM PDT SUNSET 8:01 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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