255  
CDUS46 KPQR 181148  
CLIPDX  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE  
348 AM PST FRI DEC 18 2020  
   
...............................
 
 
   
..THE PORTLAND OR CLIMATE SUMMARY FOR DECEMBER 17 2020
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1940 TO 2020  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 51 404 PM 58 1999 45 6 42  
MINIMUM 43 800 PM 7 1964 35 8 35  
AVERAGE 47 40 7 39  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 1.87 2015 0.17 -0.16 0.00  
MONTH TO DATE 1.74 3.14 -1.40 1.78  
SINCE OCT 1 8.53 11.77 -3.24 4.81  
SINCE JAN 1 29.09 33.68 -4.59 24.06  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.4 1984  
MONTH TO DATE 0.0  
SINCE DEC 1 0.0  
SINCE JUL 1 0.0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 18 25 -7 26  
MONTH TO DATE 360 408 -48 366  
SINCE DEC 1 360 408 -48 366  
SINCE JUL 1 1232 1377 -145 1400  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 600 424 176 564    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 7.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 1200 AM  
LOWEST 71 500 PM  
AVERAGE 79  
   
......................................................
 
 
THE PORTLAND OR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 45 59 2018  
MINIMUM TEMPERATURE (F) 35 11 1964  
 
SUNRISE AND SUNSET  
DECEMBER 18 2020......SUNRISE 746 AM PST SUNSET 428 PM PST  
DECEMBER 19 2020......SUNRISE 747 AM PST SUNSET 429 PM PST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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