590  
CDUS41 KBOX 010528  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
128 AM EDT THU MAY 01 2025  
   
...............................  
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR APRIL 30 2025  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1872 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 72 342 PM 86 1942 62 10 54  
MINIMUM 54 1159 PM 31 1874 46 8 47  
AVERAGE 63 54 9 51  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.81 2023 0.12 -0.12 0.09  
MONTH TO DATE 3.13 3.63 -0.50 2.96  
SINCE MAR 1 7.23 7.80 -0.57 11.90  
SINCE JAN 1 12.54 14.40 -1.86 20.19  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 2007 0.0 0.0 0.0  
2008  
2009  
MONTH TO DATE T 1.6 -1.6 0.1  
SINCE MAR 1 T 10.6 -10.6 0.1  
SINCE JUL 1 28.1 49.2 -21.1 9.8  
 
DEGREE DAYS  
HEATING  
YESTERDAY 2 12 -10 14  
MONTH TO DATE 422 496 -74 477  
SINCE MAR 1 1119 1324 -205 1181  
SINCE JUL 1 4878 5262 -384 4666  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 6 4 2 0  
SINCE MAR 1 6 4 2 0  
SINCE JAN 1 6 4 2 0    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION W (280)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 14.6  
 
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 68 500 AM  
LOWEST 16 700 PM  
AVERAGE 42  
   
......................................................  
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 62 89 1899  
MINIMUM TEMPERATURE (F) 46 33 1880  
 
SUNRISE AND SUNSET  
MAY 1 2025...........SUNRISE 539 AM EDT SUNSET 744 PM EDT  
MAY 2 2025...........SUNRISE 538 AM EDT SUNSET 745 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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