792  
CDUS41 KBOX 310610  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
210 AM EDT THU MAY 31 2018  
 
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR MAY 30 2018
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1872 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 69 158 AM 96 1929 71 -2 59  
MINIMUM 60 841 PM 35 1884 54 6 49  
AVERAGE 65 62 3 54  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.52 1948 0.13 -0.13 0.00  
MONTH TO DATE 1.90 3.37 -1.47 3.39  
SINCE MAR 1 11.59 11.43 0.16 13.30  
SINCE JAN 1 20.28 18.04 2.24 20.77  
 
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 24.6 9.8 14.8 11.3  
SINCE JUL 1 59.9 43.9 16.0 47.6  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 4 -4 11  
MONTH TO DATE 154 241 -87 300  
SINCE MAR 1 1590 1580 10 1661  
SINCE JUL 1 5342 5622 -280 5200  
 
COOLING  
YESTERDAY 0 2 -2 0  
MONTH TO DATE 68 21 47 41  
SINCE MAR 1 68 24 44 60  
SINCE JAN 1 68 24 44 60    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION NE (60)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 8.4  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 300 AM  
LOWEST 56 800 AM  
AVERAGE 77  
   
......................................................
 
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 96 1944  
MINIMUM TEMPERATURE (F) 55 39 1884  
 
 
SUNRISE AND SUNSET  
MAY 31 2018...........SUNRISE 510 AM EDT SUNSET 814 PM EDT  
JUNE 1 2018..........SUNRISE 510 AM EDT SUNSET 814 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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