564  
CDUS41 KGYX 170812  
CLIPWM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GRAY ME  
411 AM EDT THU SEP 17 2020  
 
   
...............................
 
 
   
..THE PORTLAND ME CLIMATE SUMMARY FOR SEPTEMBER 16 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 74 1242 PM 90 1941 70 4 71  
MINIMUM 47 402 AM 28 1964 50 -3 52  
AVERAGE 61 60 1 62  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 4.44 1999 0.13 -0.13 0.00  
MONTH TO DATE 0.19 1.80 -1.61 0.16  
SINCE SEP 1 0.19 1.80 -1.61 0.16  
SINCE JAN 1 26.01 31.54 -5.53 34.47  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2002 0.0 0.0 0.0  
2001  
2000  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 4 6 -2 3  
MONTH TO DATE 34 59 -25 73  
SINCE SEP 1 34 59 -25 73  
SINCE JUL 1 49 104 -55 86  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 40 23 17 17  
SINCE SEP 1 40 23 17 17  
SINCE JAN 1 663 351 312 453    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION S (190)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 8.4  
 
 
SKY COVER  
AVERAGE SKY COVER 0.1  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 100 AM  
LOWEST 44 1200 PM  
AVERAGE 65  
   
......................................................
 
 
 
THE PORTLAND ME CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 70 88 1941  
MINIMUM TEMPERATURE (F) 50 30 1948  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 17 2020.....SUNRISE 623 AM EDT SUNSET 647 PM EDT  
SEPTEMBER 18 2020.....SUNRISE 624 AM EDT SUNSET 645 PM EDT  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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