631  
CDUS41 KBOX 132123  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
523 PM EDT MON SEP 13 2021  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR SEPTEMBER 13 2021
 
 
VALID AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1872 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 82 305 PM 93 1957 74 8 75  
MINIMUM 69 657 AM 45 1911 59 10 55  
1985  
AVERAGE 76 67 9 65  
 
PRECIPITATION (IN)  
TODAY 0.06 2.30 1918 0.12 -0.06 0.00  
1987  
MONTH TO DATE 5.49 1.40 4.09 0.46  
SINCE SEP 1 5.49 1.40 4.09 0.46  
SINCE JAN 1 41.45 29.44 12.01 22.18  
 
SNOWFALL (IN)  
TODAY 0.0 0.0 2000 0.0 0.0 0.0  
2001  
2002  
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 T  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 2 -2 0  
MONTH TO DATE 0 12 -12 5  
SINCE SEP 1 0 12 -12 5  
SINCE JUL 1 9 21 -12 7  
 
COOLING  
TODAY 11 3 8 0  
MONTH TO DATE 89 58 31 61  
SINCE SEP 1 89 58 31 61  
SINCE JAN 1 1065 758 307 888    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 9.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 84 600 AM  
LOWEST 37 400 PM  
AVERAGE 61  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 74 92 1915  
1931  
MINIMUM TEMPERATURE (F) 59 40 1884  
 
SUNRISE AND SUNSET  
SEPTEMBER 13 2021.....SUNRISE 622 AM EDT SUNSET 657 PM EDT  
SEPTEMBER 14 2021.....SUNRISE 623 AM EDT SUNSET 655 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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