579  
CDUS46 KMTR 030845  
CLISTS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
145 AM PDT SUN AUG 03 2025  
   
...............................  
 
   
..THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR AUGUST 2 2025  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1998 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 85 3:01 PM 100 1998 83 2 94  
MINIMUM 51 3:41 AM 46 2012 52 -1 51  
2013  
AVERAGE 68 68 0 73  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 T 2017 0.00 0.00 0.00  
MONTH TO DATE T 0.00 0.00 0.00  
SINCE OCT 1 41.12 33.60 7.52 36.97  
SINCE JAN 1 15.53 21.61 -6.08 25.41  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0  
MONTH TO DATE 0 0  
SINCE JUN 1 61 13  
SINCE JUL 1 17 5  
 
COOLING  
YESTERDAY 3 8  
MONTH TO DATE 6 16  
SINCE JUN 1 89 346  
SINCE JAN 1 126 375    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION S (170)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 5.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 3:00 AM  
LOWEST 35 3:00 PM  
AVERAGE 68  
   
......................................................  
 
THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 106 1998  
MINIMUM TEMPERATURE (F) 52 47 2008  
2018  
 
SUNRISE AND SUNSET  
AUGUST 3 2025........SUNRISE 6:15 AM PDT SUNSET 8:19 PM PDT  
AUGUST 4 2025........SUNRISE 6:16 AM PDT SUNSET 8:18 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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