086  
CDUS41 KBOX 160934  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
534 AM EDT FRI MAY 16 2025  
   
...............................  
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR MAY 15 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 68 1203 PM 93 1900 66 2 70  
MINIMUM 55 418 AM 36 1947 50 5 55  
AVERAGE 62 58 4 63  
 
PRECIPITATION (IN)  
YESTERDAY 0.35 1.73 1978 0.09 0.26 0.30  
MONTH TO DATE 3.35 1.53 1.82 1.63  
SINCE MAR 1 10.58 9.33 1.25 13.53  
SINCE JAN 1 15.89 15.93 -0.04 21.82  
 
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 T 10.6 -10.6 0.1  
SINCE JUL 1 28.1 49.2 -21.1 9.8  
 
DEGREE DAYS  
HEATING  
YESTERDAY 3 8 -5 2  
MONTH TO DATE 91 140 -49 150  
SINCE MAR 1 1210 1464 -254 1331  
SINCE JUL 1 4969 5402 -433 4816  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 6 7 -1 0  
SINCE MAR 1 12 11 1 0  
SINCE JAN 1 12 11 1 0    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION NE (60)  
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 5.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 900 AM  
LOWEST 84 1200 PM  
AVERAGE 91  
   
......................................................  
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 93 1932  
MINIMUM TEMPERATURE (F) 50 34 1936  
 
SUNRISE AND SUNSET  
MAY 16 2025...........SUNRISE 521 AM EDT SUNSET 800 PM EDT  
MAY 17 2025...........SUNRISE 520 AM EDT SUNSET 801 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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