023  
CDUS46 KMTR 230828  
CLISTS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
128 AM PDT SAT SEP 23 2023  
   
...............................
 
 
   
..THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 22 2023
 
 
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)  
YESTERDAY  
MAXIMUM 77 12:42 PM 103 2003 83 -6 83  
MINIMUM 50 11:59 PM 41 2012 49 1 49  
2017  
AVERAGE 64 66 -2 66  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.07 1999 0.00 0.00 0.00  
MONTH TO DATE T 0.06 -0.06 0.95  
SINCE OCT 1 41.86 33.71 8.15 27.12  
SINCE JAN 1 30.91 21.72 9.19 5.67  
 
DEGREE DAYS  
HEATING  
YESTERDAY 1 0  
MONTH TO DATE 10 14  
SINCE SEP 1 10 14  
SINCE JUL 1 20 18  
 
COOLING  
YESTERDAY 0 1  
MONTH TO DATE 54 141  
SINCE SEP 1 54 141  
SINCE JAN 1 441 543    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION S (170)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 4.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 11:00 PM  
LOWEST 42 1:00 PM  
AVERAGE 68  
   
......................................................
 
 
THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 97 2011  
MINIMUM TEMPERATURE (F) 49 42 2008  
2010  
 
SUNRISE AND SUNSET  
SEPTEMBER 23 2023.....SUNRISE 7:00 AM PDT SUNSET 7:07 PM PDT  
SEPTEMBER 24 2023.....SUNRISE 7:01 AM PDT SUNSET 7:05 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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