699  
CDUS46 KMTR 270833  
CLISTS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
133 AM PDT THU JUL 27 2023  
   
...............................
 
 
   
..THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR JULY 26 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 85 2:44 PM 97 2016 83 2 78  
MINIMUM 53 5:57 AM 49 2008 52 1 54  
AVERAGE 69 68 1 66  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 T 2016 0.00 0.00 0.00  
2020  
MONTH TO DATE T 0.01 -0.01 T  
SINCE OCT 1 41.86 33.60 8.26 26.17  
SINCE JAN 1 30.91 21.61 9.30 4.72  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0  
MONTH TO DATE 10 4  
SINCE JUN 1 79 23  
SINCE JUL 1 10 4  
 
COOLING  
YESTERDAY 4 1  
MONTH TO DATE 136 61  
SINCE JUN 1 154 175  
SINCE JAN 1 170 235    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION S (160)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (160)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 6.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 5:00 AM  
LOWEST 41 2:00 PM  
AVERAGE 69  
   
......................................................
 
 
THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 95 2019  
MINIMUM TEMPERATURE (F) 52 48 2000  
 
SUNRISE AND SUNSET  
JULY 27 2023..........SUNRISE 6:09 AM PDT SUNSET 8:26 PM PDT  
JULY 28 2023..........SUNRISE 6:10 AM PDT SUNSET 8:25 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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