627  
CDUS46 KPQR 101142  
CLIPDX  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE  
342 AM PST THU DEC 10 2020  
   
...............................
 
 
   
..THE PORTLAND OR CLIMATE SUMMARY FOR DECEMBER 9 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 54 322 PM 60 1987 46 8 49  
MINIMUM 40 811 PM 12 2009 36 4 38  
AVERAGE 47 41 6 44  
 
PRECIPITATION (IN)  
YESTERDAY T 1.42 2010 0.18 -0.18 0.00  
MONTH TO DATE 0.37 1.74 -1.37 0.83  
SINCE OCT 1 7.16 10.37 -3.21 3.86  
SINCE JAN 1 27.72 32.28 -4.56 23.11  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 2013  
MONTH TO DATE 0.0  
SINCE DEC 1 0.0  
SINCE JUL 1 0.0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 18 24 -6 21  
MONTH TO DATE 193 210 -17 194  
SINCE DEC 1 193 210 -17 194  
SINCE JUL 1 1065 1179 -114 1228  
 
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 12 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 1.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 100 AM  
LOWEST 77 200 PM  
AVERAGE 85  
   
......................................................
 
 
THE PORTLAND OR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 46 65 1993  
MINIMUM TEMPERATURE (F) 35 13 2009  
 
SUNRISE AND SUNSET  
DECEMBER 10 2020......SUNRISE 740 AM PST SUNSET 427 PM PST  
DECEMBER 11 2020......SUNRISE 741 AM PST SUNSET 427 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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