458  
CDUS41 KBOX 102122  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
522 PM EDT FRI MAY 10 2019  
 
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR MAY 10 2019
 
 
VALID AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1872 TO 2019  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 62 359 PM 94 1979 64 -2 71  
1896  
MINIMUM 51 628 AM 34 1902 48 3 49  
1900  
AVERAGE 57 56 1 60  
 
PRECIPITATION (IN)  
TODAY 0.01 1.43 1998 0.10 -0.09 T  
MONTH TO DATE 0.41 1.05 -0.64 0.28  
SINCE MAR 1 9.88 9.11 0.77 9.97  
SINCE JAN 1 16.95 15.72 1.23 18.66  
 
SNOWFALL (IN)  
TODAY 0.0 0.5 1977 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.1 -0.1 0.0  
SINCE MAR 1 13.5 9.8 3.7 24.6  
SINCE JUL 1 27.4 43.9 -16.5 59.9  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 8 9 -1 5  
MONTH TO DATE 118 107 11 52  
SINCE MAR 1 1312 1446 -134 1488  
SINCE JUL 1 5118 5488 -370 5240  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 27  
SINCE MAR 1 8 3 5 27  
SINCE JAN 1 8 3 5 27    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 11.7  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 78 300 PM  
LOWEST 50 1200 AM  
AVERAGE 64  
   
......................................................
 
 
 
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 64 91 1993  
MINIMUM TEMPERATURE (F) 48 33 1900  
 
 
SUNRISE AND SUNSET  
MAY 10 2019...........SUNRISE 528 AM EDT SUNSET 753 PM EDT  
MAY 11 2019...........SUNRISE 527 AM EDT SUNSET 754 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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