173  
CDUS41 KGYX 160914  
CLIPWM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GRAY ME  
414 AM EST WED DEC 16 2020  
   
...............................
 
 
   
..THE PORTLAND ME CLIMATE SUMMARY FOR DECEMBER 15 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 32 1:29 AM 57 2008 38 -6 54  
MINIMUM 14 11:59 PM -3 1989 21 -7 29  
AVERAGE 23 29 -6 42  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.30 1884 0.13 -0.13 0.00  
MONTH TO DATE 2.64 2.07 0.57 5.85  
SINCE DEC 1 2.64 2.07 0.57 5.85  
SINCE JAN 1 38.90 45.30 -6.40 49.77  
 
SNOWFALL (IN)  
YESTERDAY 0.0 10.6 2013 0.4 -0.4 0.0  
MONTH TO DATE 1.7 5.1 -3.4 10.2  
SINCE DEC 1 1.7 5.1 -3.4 10.2  
SINCE JUL 1 1.8 7.0 -5.2 10.5  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 42 36 6 23  
MONTH TO DATE 459 500 -41 481  
SINCE DEC 1 459 500 -41 481  
SINCE JUL 1 1726 1991 -265 1916  
 
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 14 RESULTANT WIND DIRECTION NW (300)  
HIGHEST WIND SPEED 35 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 44 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 14.8  
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 12:00 AM  
LOWEST 25 3:00 PM  
AVERAGE 59  
   
......................................................
 
 
THE PORTLAND ME CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 37 56 2008  
MINIMUM TEMPERATURE (F) 20 -9 1951  
 
SUNRISE AND SUNSET  
DECEMBER 16 2020......SUNRISE 7:09 AM EST SUNSET 4:05 PM EST  
DECEMBER 17 2020......SUNRISE 7:09 AM EST SUNSET 4:06 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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