844  
CDUS46 KMTR 220038  
CLISTS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
438 PM PST THU DEC 21 2023  
   
...............................  
 
   
..THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR DECEMBER 21 2023  
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 68 2:50 PM 77 1999 57 11 60  
MINIMUM 48 12:00 AM 21 1998 37 11 34  
AVERAGE 58 47 11 47  
 
PRECIPITATION (IN)  
TODAY 0.01 2.55 2012 0.22 -0.21 T  
MONTH TO DATE 5.59 4.47 1.12 4.16  
SINCE OCT 1 8.41 9.70 -1.29 5.40  
SINCE JAN 1 39.49 31.49 8.00 11.08  
 
DEGREE DAYS  
HEATING  
TODAY 7 18  
MONTH TO DATE 291 423  
SINCE DEC 1 291 423  
SINCE JUL 1 737 1022  
 
COOLING  
TODAY 0 0  
MONTH TO DATE 0 0  
SINCE DEC 1 0 0  
SINCE JAN 1 498 579    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION N (350)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 5.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 12:00 AM  
LOWEST 59 2:00 PM  
AVERAGE 80  
   
......................................................  
 
THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 57 70 1999  
2014  
MINIMUM TEMPERATURE (F) 37 21 1998  
 
SUNRISE AND SUNSET  
DECEMBER 21 2023......SUNRISE 7:25 AM PST SUNSET 4:54 PM PST  
DECEMBER 22 2023......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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