942  
CDUS41 KBOX 290530  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
130 AM EDT THU JUL 29 2021  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR JULY 28 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 1227 PM 99 1949 82 -7 95  
MINIMUM 66 1159 PM 54 1884 67 -1 78  
AVERAGE 71 74 -3 87  
 
PRECIPITATION (IN)  
YESTERDAY T 3.49 1911 0.11 -0.11 0.00  
MONTH TO DATE 9.92 2.94 6.98 1.95  
SINCE JUN 1 12.49 6.83 5.66 4.61  
SINCE JAN 1 28.81 24.48 4.33 19.44  
 
SNOWFALL (IN)  
YESTERDAY 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 JUN 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 9 0 9 0  
SINCE JUN 1 12 50 -38 38  
SINCE JUL 1 9 0 9 0  
 
COOLING  
YESTERDAY 6 10 -4 22  
MONTH TO DATE 222 261 -39 291  
SINCE JUN 1 512 399 113 465  
SINCE JAN 1 576 432 144 499    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION E (70)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION N (20)  
AVERAGE WIND SPEED 8.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 800 AM  
LOWEST 57 200 PM  
AVERAGE 72  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 97 1931  
1933  
MINIMUM TEMPERATURE (F) 67 55 1880  
 
SUNRISE AND SUNSET  
JULY 29 2021..........SUNRISE 534 AM EDT SUNSET 807 PM EDT  
JULY 30 2021..........SUNRISE 535 AM EDT SUNSET 806 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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