435  
CDUS41 KGYX 290905  
CLIPWM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GRAY ME  
405 AM EST TUE DEC 29 2020  
   
...............................
 
 
   
..THE PORTLAND ME CLIMATE SUMMARY FOR DECEMBER 28 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 45 3:49 PM 57 1949 34 11 49  
MINIMUM 21 12:48 AM -13 1951 16 5 27  
AVERAGE 33 25 8 38  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 2.06 1922 0.12 -0.11 0.00  
MONTH TO DATE 5.21 3.68 1.53 6.12  
SINCE DEC 1 5.21 3.68 1.53 6.12  
SINCE JAN 1 41.47 46.91 -5.44 50.04  
 
SNOWFALL (IN)  
YESTERDAY 0.0 21.0 1946 0.6 -0.6 0.0  
MONTH TO DATE 20.0 11.5 8.5 13.2  
SINCE DEC 1 20.0 11.5 8.5 13.2  
SINCE JUL 1 20.1 13.4 6.7 13.5  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 32 40 -8 27  
MONTH TO DATE 933 998 -65 952  
SINCE DEC 1 933 998 -65 952  
SINCE JUL 1 2200 2489 -289 2387  
 
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 5 RESULTANT WIND DIRECTION S (190)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION S (180)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 6.0  
 
SKY COVER  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 9:00 PM  
LOWEST 78 9:00 AM  
AVERAGE 89  
   
......................................................
 
 
THE PORTLAND ME CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 33 56 1984  
MINIMUM TEMPERATURE (F) 16 -13 2017  
 
SUNRISE AND SUNSET  
DECEMBER 29 2020......SUNRISE 7:14 AM EST SUNSET 4:13 PM EST  
DECEMBER 30 2020......SUNRISE 7:15 AM EST SUNSET 4:14 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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