777  
CDUS41 KBOX 220618  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
207 AM EDT WED MAY 22 2019  
 
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR MAY 21 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 72 243 PM 93 1921 68 4 80  
MINIMUM 58 458 AM 41 1907 51 7 57  
AVERAGE 65 60 5 69  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.24 1889 0.11 -0.11 0.00  
MONTH TO DATE 2.37 2.22 0.15 1.77  
SINCE MAR 1 11.84 10.28 1.56 11.46  
SINCE JAN 1 18.91 16.89 2.02 20.15  
 
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 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 0 7 -7 0  
MONTH TO DATE 199 193 6 126  
SINCE MAR 1 1393 1532 -139 1562  
SINCE JUL 1 5199 5574 -375 5314  
 
COOLING  
YESTERDAY 0 1 -1 4  
MONTH TO DATE 12 8 4 41  
SINCE MAR 1 20 11 9 41  
SINCE JAN 1 20 11 9 41    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 18 RESULTANT WIND DIRECTION NW (300)  
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 44 HIGHEST GUST DIRECTION W (260)  
AVERAGE WIND SPEED 18.5  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 55 500 AM  
LOWEST 25 300 PM  
AVERAGE 40  
   
......................................................
 
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 93 1959  
MINIMUM TEMPERATURE (F) 52 39 1894  
 
 
SUNRISE AND SUNSET  
MAY 22 2019...........SUNRISE 517 AM EDT SUNSET 806 PM EDT  
MAY 23 2019...........SUNRISE 516 AM EDT SUNSET 807 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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