146  
CDUS41 KBOX 090619  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
209 AM EDT THU MAY 9 2019  
 
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR MAY 8 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 61 1239 AM 87 1964 64 -3 60  
1895  
MINIMUM 50 1159 PM 34 1956 48 2 45  
AVERAGE 56 56 0 53  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.42 1886 0.10 -0.10 0.00  
MONTH TO DATE 0.40 0.85 -0.45 0.28  
SINCE MAR 1 9.87 8.91 0.96 9.97  
SINCE JAN 1 16.94 15.52 1.42 18.66  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.9 1938 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  
YESTERDAY 9 10 -1 12  
MONTH TO DATE 96 88 8 37  
SINCE MAR 1 1290 1427 -137 1473  
SINCE JUL 1 5096 5469 -373 5225  
 
COOLING  
YESTERDAY 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)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION NE (50)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SE (120)  
AVERAGE WIND SPEED 9.1  
 
 
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 84 1200 AM  
LOWEST 41 1000 PM  
AVERAGE 63  
   
......................................................
 
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 64 95 1979  
MINIMUM TEMPERATURE (F) 48 35 1977  
 
 
SUNRISE AND SUNSET  
MAY 9 2019...........SUNRISE 530 AM EDT SUNSET 752 PM EDT  
MAY 10 2019...........SUNRISE 528 AM EDT SUNSET 753 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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