780  
CDUS46 KPQR 201142  
CLIPDX  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE  
342 AM PST SUN DEC 20 2020  
   
...............................
 
 
   
..THE PORTLAND OR CLIMATE SUMMARY FOR DECEMBER 19 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 55 1159 PM 59 1953 45 10 57  
1961  
1972  
MINIMUM 49 856 AM 14 1964 35 14 38  
AVERAGE 52 40 12 48  
 
PRECIPITATION (IN)  
YESTERDAY 0.40 1.72 1941 0.17 0.23 0.64  
1953  
MONTH TO DATE 2.25 3.49 -1.24 2.60  
SINCE OCT 1 9.04 12.12 -3.08 5.63  
SINCE JAN 1 29.60 34.03 -4.43 24.88  
 
SNOWFALL (IN)  
YESTERDAY 0.0 8.0 1964  
MONTH TO DATE 0.0  
SINCE DEC 1 0.0  
SINCE JUL 1 0.0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 13 25 -12 17  
MONTH TO DATE 389 458 -69 410  
SINCE DEC 1 389 458 -69 410  
SINCE JUL 1 1261 1427 -166 1444  
 
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 23 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 11.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 1000 AM  
LOWEST 74 200 PM  
AVERAGE 84  
   
......................................................
 
 
THE PORTLAND OR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 45 59 1974  
2014  
2019  
MINIMUM TEMPERATURE (F) 35 13 1967  
 
SUNRISE AND SUNSET  
DECEMBER 20 2020......SUNRISE 748 AM PST SUNSET 429 PM PST  
DECEMBER 21 2020......SUNRISE 748 AM PST SUNSET 430 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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