396  
CDUS41 KBOX 010559  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
148 AM EDT WED MAY 1 2019  
 
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR APRIL 30 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 54 616 PM 86 1942 61 -7 48  
MINIMUM 44 825 AM 31 1874 45 -1 40  
AVERAGE 49 53 -4 44  
 
PRECIPITATION (IN)  
YESTERDAY 0.14 1.44 1921 0.12 0.02 0.20  
MONTH TO DATE 6.52 3.74 2.78 4.62  
SINCE MAR 1 9.47 8.06 1.41 9.69  
SINCE JAN 1 16.54 14.67 1.87 18.38  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2009 0.0 0.0 0.0  
2008  
2007  
MONTH TO DATE T 1.9 -1.9 1.3  
SINCE MAR 1 13.5 9.7 3.8 24.6  
SINCE JUL 1 27.4 43.8 -16.4 59.9  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 16 12 4 21  
MONTH TO DATE 398 510 -112 583  
SINCE MAR 1 1194 1339 -145 1436  
SINCE JUL 1 5000 5381 -381 5188  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 8 3 5 0  
SINCE MAR 1 8 3 5 0  
SINCE JAN 1 8 3 5 0    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION NW (300)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 7.7  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 92 600 AM  
LOWEST 52 800 PM  
AVERAGE 72  
   
......................................................
 
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 61 89 1899  
MINIMUM TEMPERATURE (F) 46 33 1880  
 
 
SUNRISE AND SUNSET  
MAY 1 2019...........SUNRISE 540 AM EDT SUNSET 743 PM EDT  
MAY 2 2019...........SUNRISE 538 AM EDT SUNSET 745 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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