164  
CDUS46 KMTR 200044  
CLISTS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
444 PM PST THU DEC 19 2024  
   
...............................
 
 
   
..THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR DECEMBER 19 2024
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 52 3:31 PM 78 1999 57 -5 62  
MINIMUM 44 9:22 AM 24 2006 37 7 56  
AVERAGE 48 47 1 59  
 
PRECIPITATION (IN)  
TODAY 0.00 1.54 2002 0.22 -0.22 0.30  
MONTH TO DATE 5.54 4.02 1.52 3.80  
SINCE OCT 1 21.45 9.25 12.20 6.62  
SINCE JAN 1 46.94 31.04 15.90 37.70  
 
DEGREE DAYS  
HEATING  
TODAY 17 6  
MONTH TO DATE 281 273  
SINCE DEC 1 281 273  
SINCE JUL 1 789 719  
 
COOLING  
TODAY 0 0  
MONTH TO DATE 0 0  
SINCE DEC 1 0 0  
SINCE JAN 1 705 498    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION SE (120)  
HIGHEST WIND SPEED 6 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 8 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 1.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 12:00 AM  
LOWEST 93 3:00 PM  
AVERAGE 97  
   
......................................................
 
 
THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 69 1999  
MINIMUM TEMPERATURE (F) 37 26 2008  
2011  
2013  
 
SUNRISE AND SUNSET  
DECEMBER 19 2024......SUNRISE 7:24 AM PST SUNSET 4:53 PM PST  
DECEMBER 20 2024......SUNRISE 7:25 AM PST SUNSET 4:54 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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