505  
CDUS46 KMTR 050031  
CLISTS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
531 PM PDT SAT OCT 04 2025  
   
...............................
 
 
   
..THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR OCTOBER 4 2025
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 78 MM 97 2014 80 -2 92  
MINIMUM 48 MM 39 2017 47 1 45  
AVERAGE 63 64 -1 69  
 
PRECIPITATION (IN)  
TODAY 0.00 0.39 2011 0.03 -0.03 0.00  
MONTH TO DATE 0.32 0.09 0.23 0.00  
SINCE OCT 1 0.32 0.09 0.23 0.00  
SINCE JAN 1 16.22 21.88 -5.66 25.49  
 
DEGREE DAYS  
HEATING  
TODAY 2 0  
MONTH TO DATE 6 0  
SINCE SEP 1 9 11  
SINCE JUL 1 26 20  
 
COOLING  
TODAY 0 4  
MONTH TO DATE 0 41  
SINCE SEP 1 113 135  
SINCE JAN 1 392 639    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION SW (210)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED 4.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 4:00 AM  
LOWEST 35 3:00 PM  
AVERAGE 68  
   
......................................................
 
 
THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 80 103 2024  
MINIMUM TEMPERATURE (F) 47 38 2009  
2017  
 
SUNRISE AND SUNSET  
OCTOBER 4 2025.......SUNRISE 7:10 AM PDT SUNSET 6:49 PM PDT  
OCTOBER 5 2025.......SUNRISE 7:11 AM PDT SUNSET 6:47 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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