825  
CDUS41 KBOX 180002  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
751 PM EDT FRI MAY 17 2019  
 
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR MAY 17 2019
 
 
VALID AS OF 0700 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 MM MM 92 2017 66 MM 71  
1977  
MINIMUM MM MM 39 1882 50 MM 51  
AVERAGE MM 58 MM 61  
 
PRECIPITATION (IN)  
TODAY 0.24 1.88 1916 0.10 0.14 0.00  
MONTH TO DATE 2.02 1.77 0.25 1.49  
SINCE MAR 1 11.49 9.83 1.66 11.18  
SINCE JAN 1 18.56 16.44 2.12 19.87  
 
SNOWFALL (IN)  
TODAY MM 0.0 2002 0.0 MM 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  
TODAY MM 8 MM 4  
MONTH TO DATE 187 165 22 103  
SINCE MAR 1 1381 1504 -123 1539  
SINCE JUL 1 5187 5546 -359 5291  
 
COOLING  
TODAY MM 1 MM 0  
MONTH TO DATE 0 4 -4 34  
SINCE MAR 1 8 7 1 34  
SINCE JAN 1 8 7 1 34    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 7 HIGHEST WIND DIRECTION E (110)  
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED 4.1  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
RAIN  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 1000 AM  
LOWEST 77 1200 AM  
AVERAGE 85  
   
......................................................
 
 
 
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 95 2017  
MINIMUM TEMPERATURE (F) 50 37 2002  
 
 
SUNRISE AND SUNSET  
MAY 17 2019...........SUNRISE 521 AM EDT SUNSET 801 PM EDT  
MAY 18 2019...........SUNRISE 520 AM EDT SUNSET 802 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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