395  
CDUS41 KBOX 180927  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
527 AM EDT SAT MAR 18 2023  
   
...............................  
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR MARCH 17 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 53 329 PM 70 1990 46 7 48  
MINIMUM 38 553 AM 10 1916 31 7 38  
AVERAGE 46 38 8 43  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.58 1968 0.14 -0.14 0.03  
MONTH TO DATE 3.51 2.19 1.32 1.24  
SINCE MAR 1 3.51 2.19 1.32 1.24  
SINCE JAN 1 10.10 8.79 1.31 8.18  
 
SNOWFALL (IN)  
YESTERDAY 0.0 3.1 1993 0.2 -0.2 0.0  
MONTH TO DATE 0.9 6.0 -5.1 2.1  
SINCE MAR 1 0.9 6.0 -5.1 2.1  
SINCE JUL 1 12.4 44.6 -32.2 54.0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 19 27 -8 22  
MONTH TO DATE 436 486 -50 438  
SINCE MAR 1 436 486 -50 438  
SINCE JUL 1 3752 4424 -672 4060  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION S (170)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 8.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 82 600 AM  
LOWEST 52 100 PM  
AVERAGE 67  
   
......................................................  
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 46 74 2012  
MINIMUM TEMPERATURE (F) 32 5 1885  
 
SUNRISE AND SUNSET  
MARCH 18 2023.........SUNRISE 651 AM EDT SUNSET 654 PM EDT  
MARCH 19 2023.........SUNRISE 650 AM EDT SUNSET 655 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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