315  
CDUS41 KBOX 172020  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
420 PM EDT MON JUL 17 2023  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR JULY 17 2023
 
 
VALID AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 91 226 PM 98 1977 83 8 86  
1999  
MINIMUM 73 453 AM 54 1892 66 7 67  
1946  
AVERAGE 82 74 8 77  
 
PRECIPITATION (IN)  
TODAY 0.00 2.68 2018 0.11 -0.11 0.00  
MONTH TO DATE 4.27 1.76 2.51 0.41  
SINCE JUN 1 7.71 5.65 2.06 2.74  
SINCE JAN 1 23.94 23.30 0.64 16.25  
 
SNOWFALL (IN)  
TODAY 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 JUN 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH MM  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 74 50 24 36  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 17 10 7 12  
MONTH TO DATE 176 151 25 169  
SINCE JUN 1 282 289 -7 300  
SINCE JAN 1 326 322 4 355    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SW (230)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SW (230)  
AVERAGE WIND SPEED 7.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 200 AM  
LOWEST 43 100 PM  
AVERAGE 70  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 98 1982  
MINIMUM TEMPERATURE (F) 67 54 1881  
 
SUNRISE AND SUNSET  
JULY 17 2023..........SUNRISE 522 AM EDT SUNSET 818 PM EDT  
JULY 18 2023..........SUNRISE 523 AM EDT SUNSET 817 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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