520  
CDUS41 KGYX 090856  
CLIPWM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GRAY ME  
356 AM EST WED DEC 09 2020  
   
...............................
 
 
   
..THE PORTLAND ME CLIMATE SUMMARY FOR DECEMBER 8 2020
 
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1941 TO 2020  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 31 3:18 PM 58 1951 40 -9 36  
MINIMUM 26 11:59 PM -5 1989 23 3 7  
AVERAGE 29 32 -3 22  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.46 1950 0.14 -0.14 0.00  
MONTH TO DATE 2.26 1.12 1.14 1.10  
SINCE DEC 1 2.26 1.12 1.14 1.10  
SINCE JAN 1 38.52 44.35 -5.83 45.02  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.4 1929 0.4 -0.4 0.0  
MONTH TO DATE 1.6 2.4 -0.8 9.8  
SINCE DEC 1 1.6 2.4 -0.8 9.8  
SINCE JUL 1 1.7 4.3 -2.6 10.1  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 36 33 3 43  
MONTH TO DATE 223 256 -33 303  
SINCE DEC 1 223 256 -33 303  
SINCE JUL 1 1490 1747 -257 1738  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 681 359 322 474    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION N (340)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 10.7  
 
SKY COVER  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 81 7:00 AM  
LOWEST 63 2:00 PM  
AVERAGE 72  
   
......................................................
 
 
THE PORTLAND ME CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 40 54 1980  
MINIMUM TEMPERATURE (F) 23 -6 1949  
 
SUNRISE AND SUNSET  
DECEMBER 9 2020......SUNRISE 7:03 AM EST SUNSET 4:04 PM EST  
DECEMBER 10 2020......SUNRISE 7:04 AM EST SUNSET 4:04 PM EST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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