029  
CDUS46 KMTR 050037  
CLISTS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
437 PM PST THU DEC 04 2025  
   
...............................  
 
   
..THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR DECEMBER 4 2025  
 
VALID TODAY AS OF 0400 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 59 3:40 PM 69 2020 59 0 69  
2024  
MINIMUM 33 7:18 AM 26 2004 38 -5 36  
2013  
AVERAGE 46 48 -2 53  
 
PRECIPITATION (IN)  
TODAY 0.00 0.71 2012 0.19 -0.19 0.00  
MONTH TO DATE 0.00 0.76 -0.76 0.01  
SINCE OCT 1 6.84 5.99 0.85 15.92  
SINCE JAN 1 22.74 27.78 -5.04 41.41  
 
DEGREE DAYS  
HEATING  
TODAY 19 12  
MONTH TO DATE 64 50  
SINCE DEC 1 64 50  
SINCE JUL 1 509 558  
 
COOLING  
TODAY 0 0  
MONTH TO DATE 0 0  
SINCE DEC 1 0 0  
SINCE JAN 1 401 705    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION S (160)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 2.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 2:00 AM  
LOWEST 53 2:00 PM  
AVERAGE 75  
   
......................................................  
 
THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 59 70 2024  
MINIMUM TEMPERATURE (F) 37 24 2013  
 
SUNRISE AND SUNSET  
DECEMBER 4 2025......SUNRISE 7:13 AM PST SUNSET 4:50 PM PST  
DECEMBER 5 2025......SUNRISE 7:14 AM PST SUNSET 4:50 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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