546  
CDUS46 KMTR 190832  
CLISTS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
132 AM PDT WED JUL 19 2023  
   
...............................
 
 
   
..THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR JULY 18 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 80 2:32 PM 104 1998 83 -3 85  
MINIMUM 51 5:51 AM 48 2000 52 -1 48  
2012  
2022  
AVERAGE 66 68 -2 67  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.05 2007 0.00 0.00 0.00  
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 2  
SINCE JUN 1 79 21  
SINCE JUL 1 10 2  
 
COOLING  
YESTERDAY 1 2  
MONTH TO DATE 80 51  
SINCE JUN 1 98 165  
SINCE JAN 1 114 225    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION S (170)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION SE (150)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 6.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 8:00 PM  
LOWEST 42 2:00 PM  
AVERAGE 64  
   
......................................................
 
 
THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 97 1998  
MINIMUM TEMPERATURE (F) 52 44 2008  
 
SUNRISE AND SUNSET  
JULY 19 2023..........SUNRISE 6:02 AM PDT SUNSET 8:32 PM PDT  
JULY 20 2023..........SUNRISE 6:03 AM PDT SUNSET 8:32 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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