342  
CDUS46 KMTR 300826  
CLISFO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
1226 AM PST THU JAN 30 2025  
   
...............................  
 
   
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR JANUARY 29 2025  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1927 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 55 3:28 PM 66 1989 59 -4 66  
2009  
2015  
MINIMUM 46 10:15 PM 31 1979 45 1 49  
AVERAGE 51 52 -1 58  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.57 1968 0.12 -0.12 0.00  
MONTH TO DATE 0.13 3.64 -3.51 3.90  
SINCE OCT 1 8.69 10.61 -1.92 9.23  
SINCE JAN 1 0.13 3.64 -3.51 3.90  
 
SNOWFALL (IN)  
YESTERDAY MM 0.0  
MONTH TO DATE T  
SINCE DEC 1 T  
SINCE JUL 1 T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 14 13 1 7  
MONTH TO DATE 352 399 -47 315  
SINCE DEC 1 662 821 -159 588  
SINCE JUL 1 1203 1329 -126 811  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION W (270)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION W (280)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION W (270)  
AVERAGE WIND SPEED 6.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 2:00 AM  
LOWEST 74 12:00 PM  
AVERAGE 82  
   
......................................................  
 
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 59 71 1976  
MINIMUM TEMPERATURE (F) 45 30 1975  
 
SUNRISE AND SUNSET  
JANUARY 30 2025.......SUNRISE 7:14 AM PST SUNSET 5:32 PM PST  
JANUARY 31 2025.......SUNRISE 7:14 AM PST SUNSET 5:33 PM PST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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