788  
CDUS41 KGYX 100906  
CLIPWM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GRAY ME  
406 AM EST THU DEC 10 2020  
   
...............................
 
 
   
..THE PORTLAND ME CLIMATE SUMMARY FOR DECEMBER 9 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 6:20 PM 54 1980 40 -9 53  
MINIMUM 19 5:16 AM -6 1949 23 -4 36  
AVERAGE 25 31 -6 45  
 
PRECIPITATION (IN)  
YESTERDAY T 1.95 2014 0.14 -0.14 0.76  
MONTH TO DATE 2.26 1.26 1.00 1.86  
SINCE DEC 1 2.26 1.26 1.00 1.86  
SINCE JAN 1 38.52 44.49 -5.97 45.78  
 
SNOWFALL (IN)  
YESTERDAY 0.1 13.9 2005 0.3 -0.2 0.0  
MONTH TO DATE 1.7 2.7 -1.0 9.8  
SINCE DEC 1 1.7 2.7 -1.0 9.8  
SINCE JUL 1 1.8 4.6 -2.8 10.1  
SNOW DEPTH 1  
 
DEGREE DAYS  
HEATING  
YESTERDAY 40 34 6 20  
MONTH TO DATE 263 290 -27 323  
SINCE DEC 1 263 290 -27 323  
SINCE JUL 1 1530 1781 -251 1758  
 
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 1 RESULTANT WIND DIRECTION W (260)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION N (340)  
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION N (340)  
AVERAGE WIND SPEED 2.7  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT SNOW  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 10:00 PM  
LOWEST 66 1:00 PM  
AVERAGE 81  
   
......................................................
 
 
THE PORTLAND ME CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 39 58 2008  
2019  
MINIMUM TEMPERATURE (F) 23 -8 1949  
 
SUNRISE AND SUNSET  
DECEMBER 10 2020......SUNRISE 7:04 AM EST SUNSET 4:04 PM EST  
DECEMBER 11 2020......SUNRISE 7:05 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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