202  
CDUS46 KSEW 220857  
CLIOLM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SEATTLE WA  
156 AM PDT FRI SEP 22 2017  
 
   
...............................
 
 
   
..THE OLYMPIA WA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 21 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1948 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 64 330 PM 91 1974 70 -6 69  
MINIMUM 42 1159 PM 32 1993 45 -3 38  
1971  
1955  
AVERAGE 53 58 -5 54  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.51 1972 0.06 -0.06 0.00  
MONTH TO DATE 1.01 1.09 -0.08 1.46  
SINCE OCT 1 63.54 49.38 14.16 62.10  
SINCE JAN 1 35.44 28.69 6.75 29.10  
 
DEGREE DAYS  
HEATING  
YESTERDAY 12 8 4 11  
MONTH TO DATE 89 110 -21 126  
SINCE SEP 1 89 110 -21 126  
SINCE JUL 1 145 260 -115 236  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 37 4 33 0  
SINCE SEP 1 37 4 33 0  
SINCE JAN 1 203 103 100 145    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION S (190)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION NE (30)  
AVERAGE WIND SPEED 2.7  
 
 
SKY COVER  
AVERAGE SKY COVER 0.5  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1200 AM  
LOWEST 55 400 PM  
AVERAGE 78  
   
......................................................
 
 
 
THE OLYMPIA WA AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 91 1990  
MINIMUM TEMPERATURE (F) 45 31 1961  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 22 2017.....SUNRISE 659 AM PDT SUNSET 708 PM PDT  
SEPTEMBER 23 2017.....SUNRISE 700 AM PDT SUNSET 706 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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