616  
CDUS41 KBOX 190600  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
150 AM EDT SUN MAY 19 2019  
 
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR MAY 18 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 70 1155 AM 95 2017 67 3 65  
MINIMUM 53 1155 PM 37 2002 50 3 47  
AVERAGE 62 59 3 56  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.72 2007 0.11 -0.11 0.00  
MONTH TO DATE 2.02 1.88 0.14 1.49  
SINCE MAR 1 11.49 9.94 1.55 11.18  
SINCE JAN 1 18.56 16.55 2.01 19.87  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2001 0.0 0.0 0.0  
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 3 7 -4 9  
MONTH TO DATE 197 172 25 112  
SINCE MAR 1 1391 1511 -120 1548  
SINCE JUL 1 5197 5553 -356 5300  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 0 5 -5 34  
SINCE MAR 1 8 8 0 34  
SINCE JAN 1 8 8 0 34    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION NE (60)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION E (110)  
AVERAGE WIND SPEED 11.4  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 77 1100 PM  
LOWEST 33 1200 PM  
AVERAGE 55  
   
......................................................
 
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 90 2017  
1986  
1949  
MINIMUM TEMPERATURE (F) 51 38 1882  
 
 
SUNRISE AND SUNSET  
MAY 19 2019...........SUNRISE 519 AM EDT SUNSET 803 PM EDT  
MAY 20 2019...........SUNRISE 518 AM EDT SUNSET 804 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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