046  
CDUS41 KBOX 172125  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
525 PM EDT SUN OCT 17 2021  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR OCTOBER 17 2021
 
 
VALID TODAY 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 65 227 PM 89 1947 62 3 58  
MINIMUM 55 722 AM 27 1886 47 8 42  
AVERAGE 60 54 6 50  
 
PRECIPITATION (IN)  
TODAY 0.31 1.18 1989 0.13 0.18 1.16  
MONTH TO DATE 1.84 2.18 -0.34 3.47  
SINCE SEP 1 9.31 5.74 3.57 4.44  
SINCE JAN 1 45.27 33.78 11.49 26.16  
 
SNOWFALL (IN)  
TODAY 0.0 T 1970 0.0 0.0 0.0  
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  
 
DEGREE DAYS  
HEATING  
TODAY 5 11 -6 15  
MONTH TO DATE 29 141 -112 115  
SINCE SEP 1 41 212 -171 185  
SINCE JUL 1 50 221 -171 187  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 12 6 6 3  
SINCE SEP 1 168 97 71 97  
SINCE JAN 1 1144 797 347 924    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 13.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 200 AM  
LOWEST 41 200 PM  
AVERAGE 67  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 61 82 1947  
MINIMUM TEMPERATURE (F) 47 31 1883  
1939  
 
SUNRISE AND SUNSET  
OCTOBER 17 2021.......SUNRISE 700 AM EDT SUNSET 559 PM EDT  
OCTOBER 18 2021.......SUNRISE 701 AM EDT SUNSET 557 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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