933  
CDUS41 KGYX 202152  
CLIPWM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GRAY ME  
452 PM EST SUN DEC 20 2020  
   
...............................
 
 
   
..THE PORTLAND ME CLIMATE SUMMARY FOR DECEMBER 20 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 32 2:59 PM 53 1957 36 -4 30  
MINIMUM 15 7:20 AM -20 1975 19 -4 5  
AVERAGE 24 27 -3 18  
 
PRECIPITATION (IN)  
TODAY 0.01 1.79 1939 0.12 -0.11 0.00  
MONTH TO DATE 4.05 2.70 1.35 6.09  
SINCE DEC 1 4.05 2.70 1.35 6.09  
SINCE JAN 1 40.31 45.93 -5.62 50.01  
 
SNOWFALL (IN)  
TODAY 0.1 8.6 1995 0.5 -0.4 0.0  
MONTH TO DATE 19.4 7.4 12.0 13.2  
SINCE DEC 1 19.4 7.4 12.0 13.2  
SINCE JUL 1 19.5 9.3 10.2 13.5  
SNOW DEPTH 9  
 
DEGREE DAYS  
HEATING  
TODAY 41 38 3 47  
MONTH TO DATE 689 685 4 686  
SINCE DEC 1 689 685 4 686  
SINCE JUL 1 1956 2176 -220 2121  
 
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 6 HIGHEST WIND DIRECTION SW (240)  
HIGHEST GUST SPEED 8 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 0.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT SNOW  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 4:00 AM  
LOWEST 66 11:00 AM  
AVERAGE 79  
   
......................................................
 
 
THE PORTLAND ME CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 36 60 1957  
MINIMUM TEMPERATURE (F) 18 -14 1955  
 
SUNRISE AND SUNSET  
DECEMBER 20 2020......SUNRISE 7:11 AM EST SUNSET 4:07 PM EST  
DECEMBER 21 2020......SUNRISE 7:12 AM EST SUNSET 4:08 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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