936  
CDUS41 KBOX 150619  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
218 AM EDT WED MAY 15 2019  
 
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR MAY 14 2019
 
 
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)  
YESTERDAY  
MAXIMUM 48 303 PM 86 1879 65 -17 69  
MINIMUM 43 347 AM 37 1895 49 -6 49  
AVERAGE 46 57 -11 59  
 
PRECIPITATION (IN)  
YESTERDAY 0.15 3.77 2006 0.10 0.05 0.00  
MONTH TO DATE 1.77 1.46 0.31 0.49  
SINCE MAR 1 11.24 9.52 1.72 10.18  
SINCE JAN 1 18.31 16.13 2.18 18.87  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2002 0.0 0.0 0.0  
2001  
2000  
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  
YESTERDAY 19 8 11 6  
MONTH TO DATE 169 141 28 90  
SINCE MAR 1 1363 1480 -117 1526  
SINCE JUL 1 5169 5522 -353 5278  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 0 1 -1 27  
SINCE MAR 1 8 4 4 27  
SINCE JAN 1 8 4 4 27    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 13 RESULTANT WIND DIRECTION NE (30)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 13.2  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 100 AM  
LOWEST 76 100 PM  
AVERAGE 83  
   
......................................................
 
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 66 93 1900  
MINIMUM TEMPERATURE (F) 50 36 1947  
 
 
SUNRISE AND SUNSET  
MAY 15 2019...........SUNRISE 523 AM EDT SUNSET 759 PM EDT  
MAY 16 2019...........SUNRISE 522 AM EDT SUNSET 800 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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