295  
CDUS41 KBOX 180651  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
251 AM EDT WED MAY 18 2022  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR MAY 17 2022
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1872 TO 2022  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 74 1159 AM 92 1977 67 7 75  
2017  
MINIMUM 58 531 AM 39 1882 51 7 54  
AVERAGE 66 59 7 65  
 
PRECIPITATION (IN)  
YESTERDAY T 1.88 1916 0.09 -0.09 0.00  
MONTH TO DATE 0.47 1.72 -1.25 1.60  
SINCE MAR 1 5.72 9.52 -3.80 7.93  
SINCE JAN 1 12.66 16.12 -3.46 13.00  
 
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 2.1 10.6 -8.5 0.2  
SINCE JUL 1 54.0 49.2 4.8 38.6  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 7 -7 0  
MONTH TO DATE 151 154 -3 111  
SINCE MAR 1 1315 1478 -163 1235  
SINCE JUL 1 4937 5416 -479 5012  
 
COOLING  
YESTERDAY 1 1 0 0  
MONTH TO DATE 22 9 13 9  
SINCE MAR 1 22 13 9 9  
SINCE JAN 1 22 13 9 9    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 18 RESULTANT WIND DIRECTION W (270)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 19.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93 1200 AM  
LOWEST 28 500 PM  
AVERAGE 61  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 67 95 2017  
MINIMUM TEMPERATURE (F) 51 37 2002  
 
SUNRISE AND SUNSET  
MAY 18 2022...........SUNRISE 520 AM EDT SUNSET 802 PM EDT  
MAY 19 2022...........SUNRISE 519 AM EDT SUNSET 803 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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