158  
CDUS41 KBOX 090526  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
126 AM EDT TUE MAY 09 2023  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR MAY 8 2023
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1872 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 76 144 PM 87 1895 64 12 54  
1964  
MINIMUM 52 1130 PM 34 1956 48 4 42  
AVERAGE 64 56 8 48  
 
PRECIPITATION (IN)  
YESTERDAY T 1.42 1886 0.09 -0.09 0.00  
MONTH TO DATE 0.28 0.85 -0.57 0.37  
SINCE MAR 1 7.67 8.65 -0.98 5.62  
SINCE JAN 1 14.26 15.25 -0.99 12.56  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.9 1938 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE MAR 1 0.9 10.6 -9.7 2.1  
SINCE JUL 1 12.4 49.2 -36.8 54.0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 1 9 -8 17  
MONTH TO DATE 68 82 -14 101  
SINCE MAR 1 1236 1406 -170 1265  
SINCE JUL 1 4552 5344 -792 4887  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 4 0 4 0  
SINCE MAR 1 9 4 5 0  
SINCE JAN 1 9 4 5 0    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION NW (310)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NW (320)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION NW (320)  
AVERAGE WIND SPEED 11.8  
 
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 77 300 AM  
LOWEST 15 600 PM  
AVERAGE 46  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 65 95 1979  
MINIMUM TEMPERATURE (F) 48 35 1977  
 
SUNRISE AND SUNSET  
MAY 9 2023...........SUNRISE 530 AM EDT SUNSET 752 PM EDT  
MAY 10 2023...........SUNRISE 528 AM EDT SUNSET 753 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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