739  
CDUS41 KBOX 220525  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
125 AM EDT FRI OCT 22 2021  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR OCTOBER 21 2021
 
 
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)  
YESTERDAY  
MAXIMUM 75 302 PM 82 1920 60 15 65  
MINIMUM 58 652 AM 30 1974 46 12 56  
AVERAGE 67 53 14 61  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.78 1944 0.13 -0.13 0.06  
1996  
MONTH TO DATE 1.84 2.72 -0.88 3.53  
SINCE SEP 1 9.31 6.28 3.03 4.50  
SINCE JAN 1 45.27 34.32 10.95 26.22  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1964 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.1 -0.1 0.0  
SINCE SEP 1 0.0 0.1 -0.1 0.0  
SINCE JUL 1 0.0 0.1 -0.1 T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 12 -12 4  
MONTH TO DATE 52 187 -135 156  
SINCE SEP 1 64 258 -194 226  
SINCE JUL 1 73 267 -194 228  
 
COOLING  
YESTERDAY 2 0 2 0  
MONTH TO DATE 14 6 8 3  
SINCE SEP 1 170 97 73 97  
SINCE JAN 1 1146 797 349 924    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION SW (220)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (220)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SW (220)  
AVERAGE WIND SPEED 9.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 84 900 PM  
LOWEST 41 400 PM  
AVERAGE 63  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 60 83 1979  
MINIMUM TEMPERATURE (F) 46 28 1940  
 
SUNRISE AND SUNSET  
OCTOBER 22 2021.......SUNRISE 706 AM EDT SUNSET 551 PM EDT  
OCTOBER 23 2021.......SUNRISE 707 AM EDT SUNSET 549 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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