347  
CDUS41 KGYX 300905  
CLIPWM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GRAY ME  
405 AM EST WED DEC 30 2020  
   
...............................
 
 
   
..THE PORTLAND ME CLIMATE SUMMARY FOR DECEMBER 29 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 41 12:47 AM 56 1984 33 8 42  
MINIMUM 17 9:44 PM -13 2017 16 1 25  
AVERAGE 29 25 4 34  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.78 1966 0.11 -0.11 0.01  
MONTH TO DATE 5.21 3.79 1.42 6.13  
SINCE DEC 1 5.21 3.79 1.42 6.13  
SINCE JAN 1 41.47 47.02 -5.55 50.05  
 
SNOWFALL (IN)  
YESTERDAY 0.0 14.2 1976 0.6 -0.6 0.1  
MONTH TO DATE 20.0 12.1 7.9 13.3  
SINCE DEC 1 20.0 12.1 7.9 13.3  
SINCE JUL 1 20.1 14.0 6.1 13.6  
SNOW DEPTH T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 36 40 -4 31  
MONTH TO DATE 969 1038 -69 983  
SINCE DEC 1 969 1038 -69 983  
SINCE JUL 1 2236 2529 -293 2418  
 
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 11 RESULTANT WIND DIRECTION NW (300)  
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 12.7  
 
SKY COVER  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 79 12:00 AM  
LOWEST 34 1:00 PM  
AVERAGE 57  
   
......................................................
 
 
THE PORTLAND ME CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 33 55 1984  
MINIMUM TEMPERATURE (F) 16 -16 1963  
 
SUNRISE AND SUNSET  
DECEMBER 30 2020......SUNRISE 7:15 AM EST SUNSET 4:14 PM EST  
DECEMBER 31 2020......SUNRISE 7:15 AM EST SUNSET 4:15 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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