460  
CDUS41 KGYX 120903  
CLIPWM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GRAY ME  
403 AM EST SAT DEC 12 2020  
   
...............................
 
 
   
..THE PORTLAND ME CLIMATE SUMMARY FOR DECEMBER 11 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 44 1:56 PM 60 1966 39 5 41  
MINIMUM 26 7:15 AM -6 1958 22 4 26  
AVERAGE 35 30 5 34  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.01 1887 0.14 -0.14 0.16  
MONTH TO DATE 2.26 1.54 0.72 2.07  
SINCE DEC 1 2.26 1.54 0.72 2.07  
SINCE JAN 1 38.52 44.77 -6.25 45.99  
 
SNOWFALL (IN)  
YESTERDAY 0.0 4.4 1882 0.4 -0.4 0.4  
MONTH TO DATE 1.7 3.5 -1.8 10.2  
SINCE DEC 1 1.7 3.5 -1.8 10.2  
SINCE JUL 1 1.8 5.4 -3.6 10.5  
SNOW DEPTH 1  
 
DEGREE DAYS  
HEATING  
YESTERDAY 30 34 -4 31  
MONTH TO DATE 324 358 -34 369  
SINCE DEC 1 324 358 -34 369  
SINCE JUL 1 1591 1849 -258 1804  
 
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 2 RESULTANT WIND DIRECTION SW (210)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 2.4  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 11:00 PM  
LOWEST 62 3:00 PM  
AVERAGE 79  
   
......................................................
 
 
THE PORTLAND ME CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 39 64 1979  
MINIMUM TEMPERATURE (F) 22 -15 1977  
 
SUNRISE AND SUNSET  
DECEMBER 12 2020......SUNRISE 7:06 AM EST SUNSET 4:05 PM EST  
DECEMBER 13 2020......SUNRISE 7:07 AM EST SUNSET 4:05 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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