068  
CDUS41 KLWX 150525  
CLIBWI  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1223 AM EST FRI DEC 15 2017  
 
   
...............................
 
 
   
..THE BALTIMORE MD CLIMATE SUMMARY FOR DECEMBER 14 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1871 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 41 922 AM 71 2015 46 -5 45  
1929  
1881  
MINIMUM 28 1159 PM 11 1960 28 0 29  
AVERAGE 35 37 -2 37  
 
PRECIPITATION (IN)  
YESTERDAY T 1.48 1879 0.11 -0.11 0.00  
MONTH TO DATE 0.43 1.63 -1.20 1.40  
SINCE DEC 1 0.43 1.63 -1.20 1.40  
SINCE JAN 1 37.76 40.14 -2.38 39.15  
 
SNOWFALL (IN)  
YESTERDAY T 4.2 1951 0.1 -0.1  
MONTH TO DATE 3.1 1.1 2.0  
SINCE JUL 1 3.1 1.5 1.6  
SNOW DEPTH T  
 
DEGREE DAYS  
HEATING  
YESTERDAY 30 28 2 28  
MONTH TO DATE 369 366 3 342  
SINCE DEC 1 369 366 3 342  
SINCE JUL 1 1116 1270 -154 1041  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1316 1164 152 1551    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 9.0  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT SNOW  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 69 1200 AM  
LOWEST 40 100 PM  
AVERAGE 55  
   
......................................................
 
 
 
THE BALTIMORE MD CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 45 70 1971  
1929  
MINIMUM TEMPERATURE (F) 28 9 1962  
1960  
 
 
SUNRISE AND SUNSET  
DECEMBER 15 2017......SUNRISE 719 AM EST SUNSET 445 PM EST  
DECEMBER 16 2017......SUNRISE 720 AM EST SUNSET 445 PM EST  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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