895  
CDUS41 KBOX 210525  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
125 AM EDT SUN APR 21 2019  
 
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR APRIL 20 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 74 128 PM 89 1976 57 17 53  
1941  
1927  
MINIMUM 59 1117 PM 21 1897 42 17 36  
AVERAGE 67 50 17 45  
 
PRECIPITATION (IN)  
YESTERDAY 0.17 0.87 1874 0.11 0.06 0.00  
MONTH TO DATE 2.39 2.61 -0.22 2.90  
SINCE MAR 1 5.34 6.93 -1.59 7.97  
SINCE JAN 1 12.41 13.54 -1.13 16.66  
 
SNOWFALL (IN)  
YESTERDAY 0.0 1.0 1904 0.1 -0.1 0.0  
MONTH TO DATE T 1.8 -1.8 1.3  
SINCE MAR 1 13.5 9.6 3.9 24.6  
SINCE JUL 1 27.4 43.7 -16.3 59.9  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 15 -15 20  
MONTH TO DATE 278 373 -95 458  
SINCE MAR 1 1074 1202 -128 1311  
SINCE JUL 1 4880 5244 -364 5063  
 
COOLING  
YESTERDAY 2 0 2 0  
MONTH TO DATE 8 0 8 0  
SINCE MAR 1 8 0 8 0  
SINCE JAN 1 8 0 8 0    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 16 RESULTANT WIND DIRECTION S (190)  
HIGHEST WIND SPEED 37 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 48 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 17.9  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 900 PM  
LOWEST 79 1100 AM  
AVERAGE 85  
   
......................................................
 
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 58 88 1957  
MINIMUM TEMPERATURE (F) 42 21 1875  
 
 
SUNRISE AND SUNSET  
APRIL 21 2019.........SUNRISE 554 AM EDT SUNSET 732 PM EDT  
APRIL 22 2019.........SUNRISE 553 AM EDT SUNSET 733 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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