163  
CDUS46 KMTR 220826  
CLISTS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
126 AM PDT TUE JUL 22 2025  
   
...............................  
 
   
..THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR JULY 21 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 79 2:12 PM 99 2006 83 -4 90  
MINIMUM 53 12:38 AM 47 2001 52 1 53  
2021  
AVERAGE 66 68 -2 72  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 T 2014 0.00 0.00 0.00  
2020  
MONTH TO DATE 0.01 0.01 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 11 3  
SINCE JUN 1 55 11  
SINCE JUL 1 11 3  
 
COOLING  
YESTERDAY 1 7  
MONTH TO DATE 29 166  
SINCE JUN 1 69 277  
SINCE JAN 1 106 306    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION SE (150)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SE (120)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SE (140)  
AVERAGE WIND SPEED 6.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 12:00 AM  
LOWEST 47 2:00 PM  
AVERAGE 70  
   
......................................................  
 
THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 108 2006  
MINIMUM TEMPERATURE (F) 52 44 2022  
 
SUNRISE AND SUNSET  
JULY 22 2025..........SUNRISE 6:05 AM PDT SUNSET 8:30 PM PDT  
JULY 23 2025..........SUNRISE 6:06 AM PDT SUNSET 8:29 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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