507  
CDUS46 KMTR 050045  
CLISTS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
545 PM PDT MON AUG 04 2025  
   
...............................  
 
   
..THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR AUGUST 4 2025  
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 93 1:54 PM 103 1998 83 10 88  
MINIMUM 47R 5:37 AM 47 2007 52 -5 54  
AVERAGE 70 68 2 71  
 
PRECIPITATION (IN)  
TODAY 0.00 T 2015 0.00 0.00 0.00  
2017  
2022  
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  
TODAY 0 0  
MONTH TO DATE 0 0  
SINCE JUN 1 61 13  
SINCE JUL 1 17 5  
 
COOLING  
TODAY 5 6  
MONTH TO DATE 17 32  
SINCE JUN 1 100 362  
SINCE JAN 1 137 391    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION N (340)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 6.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 6:00 AM  
LOWEST 16 11:00 AM  
AVERAGE 53  
   
......................................................  
 
THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 93 2005  
MINIMUM TEMPERATURE (F) 52 47 2002  
 
SUNRISE AND SUNSET  
AUGUST 4 2025........SUNRISE 6:16 AM PDT SUNSET 8:18 PM PDT  
AUGUST 5 2025........SUNRISE 6:17 AM PDT SUNSET 8:17 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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