617  
CDUS41 KGYX 122145  
CLIPWM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GRAY ME  
445 PM EST SAT DEC 12 2020  
   
...............................
 
 
   
..THE PORTLAND ME CLIMATE SUMMARY FOR DECEMBER 12 2020
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 41 2:51 PM 64 1979 39 2 33  
MINIMUM 27 7:13 AM -15 1977 22 5 23  
AVERAGE 34 30 4 28  
 
PRECIPITATION (IN)  
TODAY 0.01 1.87 1952 0.14 -0.13 0.00  
MONTH TO DATE 2.27 1.68 0.59 2.07  
SINCE DEC 1 2.27 1.68 0.59 2.07  
SINCE JAN 1 38.53 44.91 -6.38 45.99  
 
SNOWFALL (IN)  
TODAY 0.0 14.7 1960 0.4 -0.4 0.0  
MONTH TO DATE 1.7 3.9 -2.2 10.2  
SINCE DEC 1 1.7 3.9 -2.2 10.2  
SINCE JUL 1 1.8 5.8 -4.0 10.5  
SNOW DEPTH 1  
 
DEGREE DAYS  
HEATING  
TODAY 31 35 -4 37  
MONTH TO DATE 355 393 -38 406  
SINCE DEC 1 355 393 -38 406  
SINCE JUL 1 1622 1884 -262 1841  
 
COOLING  
TODAY 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)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 4.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 2:00 AM  
LOWEST 79 10:00 AM  
AVERAGE 90  
   
......................................................
 
 
THE PORTLAND ME CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 38 60 1984  
MINIMUM TEMPERATURE (F) 21 -5 1976  
 
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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