153  
CDUS41 KGYX 172142  
CLIPWM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GRAY ME  
442 PM EST SUN DEC 17 2023  
   
...............................
 
 
   
..THE PORTLAND ME CLIMATE SUMMARY FOR DECEMBER 17 2023
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1941 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 46 2:56 PM 57 1984 38 8 36  
MINIMUM 24 1:04 AM -12 1942 22 2 33  
AVERAGE 35 30 5 35  
 
PRECIPITATION (IN)  
TODAY 0.00 2.88 1973 0.15 -0.15 0.25  
MONTH TO DATE 3.30 2.55 0.75 2.82  
SINCE DEC 1 3.30 2.55 0.75 2.82  
SINCE JAN 1 53.30 46.17 7.13 45.50  
 
SNOWFALL (IN)  
TODAY 0.0 22.3 1970 0.5 -0.5 0.9  
MONTH TO DATE 0.5 6.5 -6.0 4.7  
SINCE DEC 1 0.5 6.5 -6.0 4.7  
SINCE JUL 1 0.7 9.0 -8.3 4.7  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 30 35 -5 30  
MONTH TO DATE 516 554 -38 525  
SINCE DEC 1 516 554 -38 525  
SINCE JUL 1 1785 1932 -147 1761  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 423 446 -23 542    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SE (140)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SE (140)  
AVERAGE WIND SPEED 4.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 4:00 PM  
LOWEST 79 10:00 AM  
AVERAGE 88  
   
......................................................
 
 
THE PORTLAND ME CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 38 53 1996  
MINIMUM TEMPERATURE (F) 22 -9 1963  
 
SUNRISE AND SUNSET  
DECEMBER 17 2023......SUNRISE 7:09 AM EST SUNSET 4:06 PM EST  
DECEMBER 18 2023......SUNRISE 7:10 AM EST SUNSET 4:06 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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