118  
CDUS41 KBOX 062130  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
530 PM EDT THU MAY 06 2021  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR MAY 6 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 67 337 PM 90 1930 64 3 51  
MINIMUM 50 1219 AM 33 1891 48 2 41  
AVERAGE 59 56 3 46  
 
PRECIPITATION (IN)  
TODAY 0.00 1.00 1998 0.11 -0.11 0.01  
MONTH TO DATE 1.25 0.66 0.59 0.81  
SINCE MAR 1 7.58 8.46 -0.88 8.74  
SINCE JAN 1 12.65 15.06 -2.41 13.43  
 
SNOWFALL (IN)  
TODAY MM T 1917 0.0 MM 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE MAR 1 0.2 10.6 -10.4 0.7  
SINCE JUL 1 38.6 49.2 -10.6 15.8  
 
DEGREE DAYS  
HEATING  
TODAY 6 10 -4 19  
MONTH TO DATE 53 63 -10 56  
SINCE MAR 1 1177 1387 -210 1375  
SINCE JUL 1 4954 5325 -371 4758  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 1  
SINCE MAR 1 0 4 -4 1  
SINCE JAN 1 0 4 -4 1    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 12.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 1200 AM  
LOWEST 26 400 PM  
AVERAGE 56  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 64 95 1930  
MINIMUM TEMPERATURE (F) 48 37 1967  
1992  
 
SUNRISE AND SUNSET  
MAY 6 2021...........SUNRISE 533 AM EDT SUNSET 750 PM EDT  
MAY 7 2021...........SUNRISE 531 AM EDT SUNSET 751 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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