609  
CDUS46 KMTR 240831  
CLISFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
131 AM PDT WED SEP 24 2025  
   
...............................
 
 
   
..THE SAN FRANCISCO DWTN CA CLIMATE SUMMARY FOR SEPTEMBER 23 2025
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1850 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 88 12:43 PM 97 1997 71 17 89  
MINIMUM 61 5:43 AM 48 1899 56 5 53  
AVERAGE 75 63 12 71  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 3.09 1904 0.00 0.00 0.00  
MONTH TO DATE 0.08 0.05 0.03 0.00  
SINCE OCT 1 19.96 22.84 -2.88 25.76  
SINCE JAN 1 9.76 14.54 -4.78 19.08  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 3 -3 0  
MONTH TO DATE 25 71 -46 82  
SINCE SEP 1 25 71 -46 82  
SINCE JUL 1 270 341 -71 270  
 
COOLING  
YESTERDAY 10 1 9 6  
MONTH TO DATE 25 23 2 12  
SINCE SEP 1 25 23 2 12  
SINCE JAN 1 44 73 -29 40    
...............................................................
 
 
THE SAN FRANCISCO DWTN CA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 95 1997  
MINIMUM TEMPERATURE (F) 56 50 1899  
2018  
 
SUNRISE AND SUNSET  
SEPTEMBER 24 2025.....SUNRISE 7:00 AM PDT SUNSET 7:03 PM PDT  
SEPTEMBER 25 2025.....SUNRISE 7:00 AM PDT SUNSET 7:01 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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