518  
CDUS46 KMTR 040026  
CLISTS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
526 PM PDT WED SEP 03 2025  
   
...............................
 
 
   
..THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 3 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 83 1:50 PM 100 2017 85 -2 100  
2024  
MINIMUM 59 6:19 AM 43 2000 51 8 48  
AVERAGE 71 68 3 74  
 
PRECIPITATION (IN)  
TODAY 0.00 0.10 2003 0.00 0.00 0.00  
MONTH TO DATE 0.00 0.00 0.00 0.00  
SINCE OCT 1 41.12 33.65 7.47 37.05  
SINCE JAN 1 15.53 21.66 -6.13 25.49  
 
DEGREE DAYS  
HEATING  
TODAY 0 0  
MONTH TO DATE 0 0  
SINCE SEP 1 0 0  
SINCE JUL 1 17 9  
 
COOLING  
TODAY 6 9  
MONTH TO DATE 21 11  
SINCE SEP 1 21 11  
SINCE JAN 1 300 515    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION S (180)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 4.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 1:00 AM  
LOWEST 40 1:00 PM  
AVERAGE 67  
   
......................................................
 
 
THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 85 103 2022  
MINIMUM TEMPERATURE (F) 51 42 2016  
 
SUNRISE AND SUNSET  
SEPTEMBER 3 2025.....SUNRISE 6:43 AM PDT SUNSET 7:37 PM PDT  
SEPTEMBER 4 2025.....SUNRISE 6:44 AM PDT SUNSET 7:36 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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