814  
CDUS41 KBOX 150749  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
349 AM EDT MON MAY 15 2023  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR MAY 14 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 68 420 PM 86 1879 66 2 86  
2022  
MINIMUM 50 423 AM 37 1895 50 0 65  
AVERAGE 59 58 1 76  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 3.77 2006 0.10 -0.10 T  
MONTH TO DATE 0.28 1.44 -1.16 0.37  
SINCE MAR 1 7.67 9.24 -1.57 5.62  
SINCE JAN 1 14.26 15.84 -1.58 12.56  
 
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 0.9 10.6 -9.7 2.1  
SINCE JUL 1 12.4 49.2 -36.8 54.0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 6 8 -2 0  
MONTH TO DATE 89 132 -43 151  
SINCE MAR 1 1257 1456 -199 1315  
SINCE JUL 1 4573 5394 -821 4937  
 
COOLING  
YESTERDAY 0 1 -1 11  
MONTH TO DATE 21 6 15 11  
SINCE MAR 1 26 10 16 11  
SINCE JAN 1 26 10 16 11    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION N (340)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NW (310)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NW (330)  
AVERAGE WIND SPEED 11.7  
 
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 71 400 AM  
LOWEST 22 500 PM  
AVERAGE 47  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 66 93 1900  
MINIMUM TEMPERATURE (F) 50 36 1947  
 
SUNRISE AND SUNSET  
MAY 15 2023...........SUNRISE 523 AM EDT SUNSET 759 PM EDT  
MAY 16 2023...........SUNRISE 522 AM EDT SUNSET 800 PM EDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab MA Page
The Nexlab RI Page
The Nexlab NH Page
The Nexlab CT Page Main Text Page