988  
CDUS41 KBOX 200536  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
136 AM EDT MON MAY 20 2024  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR MAY 19 2024
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1872 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 57 334 PM 90 1949 67 -10 69  
1986  
2017  
MINIMUM 51 1021 PM 38 1882 51 0 46  
AVERAGE 54 59 -5 58  
 
PRECIPITATION (IN)  
YESTERDAY 0.08 1.55 1900 0.10 -0.02 0.00  
MONTH TO DATE 2.72 1.92 0.80 0.28  
SINCE MAR 1 14.62 9.72 4.90 7.67  
SINCE JAN 1 22.91 16.32 6.59 14.26  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2000 0.0 0.0 0.0  
2001  
2002  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE MAR 1 0.1 10.6 -10.5 0.9  
SINCE JUL 1 9.8 49.2 -39.4 12.4  
 
DEGREE DAYS  
HEATING  
YESTERDAY 11 7 4 7  
MONTH TO DATE 183 168 15 122  
SINCE MAR 1 1364 1492 -128 1290  
SINCE JUL 1 4849 5430 -581 4606  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 0 11 -11 27  
SINCE MAR 1 0 15 -15 32  
SINCE JAN 1 0 15 -15 32    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION NE (40)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NE (30)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NE (30)  
AVERAGE WIND SPEED 10.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 100 AM  
LOWEST 87 100 PM  
AVERAGE 94  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 68 91 1996  
MINIMUM TEMPERATURE (F) 51 40 1892  
 
SUNRISE AND SUNSET  
MAY 20 2024...........SUNRISE 518 AM EDT SUNSET 804 PM EDT  
MAY 21 2024...........SUNRISE 517 AM EDT SUNSET 805 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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