774  
CDUS46 KMTR 210031  
CLISTS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
531 PM PDT WED SEP 20 2023  
   
...............................
 
 
   
..THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 20 2023
 
 
VALID TODAY AS OF 0500 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 72 2:10 PM 100 2003 83 -11 73  
MINIMUM 57 6:58 AM 40 2004 49 8 49  
AVERAGE 65 66 -1 61  
 
PRECIPITATION (IN)  
TODAY 0.00 0.16 2013 0.01 -0.01 0.00  
MONTH TO DATE T 0.05 -0.05 0.91  
SINCE OCT 1 41.86 33.70 8.16 27.08  
SINCE JAN 1 30.91 21.71 9.20 5.63  
 
DEGREE DAYS  
HEATING  
TODAY 0 4  
MONTH TO DATE 1 14  
SINCE SEP 1 1 14  
SINCE JUL 1 11 18  
 
COOLING  
TODAY 0 0  
MONTH TO DATE 54 139  
SINCE SEP 1 54 139  
SINCE JAN 1 441 541    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION S (170)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 3.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 5:00 AM  
LOWEST 61 2:00 PM  
AVERAGE 77  
   
......................................................
 
 
THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 103 2003  
MINIMUM TEMPERATURE (F) 49 40 2012  
 
SUNRISE AND SUNSET  
SEPTEMBER 20 2023.....SUNRISE 6:57 AM PDT SUNSET 7:12 PM PDT  
SEPTEMBER 21 2023.....SUNRISE 6:58 AM PDT SUNSET 7:10 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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