886  
CDUS46 KMTR 210837  
CLISTS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
137 AM PDT SUN OCT 21 2018  
 
   
...............................
 
 
   
..THE SANTA ROSA AIRPORT CLIMATE SUMMARY FOR OCTOBER 20 2018
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1998 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 78 214 PM 91 2006 75 3 64  
MINIMUM 46 806 AM 37 2013 44 2 41  
AVERAGE 62 60 2 53  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.13 2004 0.08 -0.08 0.00  
MONTH TO DATE 1.23 0.95 0.28 0.21  
SINCE OCT 1 1.23 0.95 0.28 0.21  
SINCE JAN 1 19.86 23.48 -3.62 42.19  
 
DEGREE DAYS  
HEATING  
YESTERDAY 3 12  
MONTH TO DATE 41 60  
SINCE SEP 1 76 74  
SINCE JUL 1 97 78  
 
COOLING  
YESTERDAY 0 0  
MONTH TO DATE 23 10  
SINCE SEP 1 64 173  
SINCE JAN 1 389 611    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION S (160)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION S (170)  
HIGHEST GUST SPEED 13 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 3.5  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1200 AM  
LOWEST 37 200 PM  
AVERAGE 69  
   
......................................................
 
 
 
THE SANTA ROSA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 88 1999  
MINIMUM TEMPERATURE (F) 44 37 2017  
 
 
SUNRISE AND SUNSET  
OCTOBER 21 2018.......SUNRISE 726 AM PDT SUNSET 625 PM PDT  
OCTOBER 22 2018.......SUNRISE 727 AM PDT SUNSET 623 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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