893  
CDUS41 KPBZ 140801  
CLIPIT  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE PITTSBURGH PA  
301 AM EST THU DEC 14 2017  
   
...............................
 
 
   
..THE PITTSBURGH PA CLIMATE SUMMARY FOR DECEMBER 13 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 26 1159 PM 71 1901 40 -14 33  
MINIMUM 15 412 AM -5 1962 26 -11 26  
AVERAGE 21 33 -12 30  
 
PRECIPITATION (IN)  
YESTERDAY 0.08 0.96 2007 0.09 -0.01 0.29  
MONTH TO DATE 0.59 1.26 -0.67 1.43  
SINCE JUN 1 22.26 21.50 0.76 19.39  
SINCE JAN 1 40.97 36.60 4.37 33.01  
 
SNOWFALL (IN)  
YESTERDAY 1.7 5.6 1914 0.3 1.4 3.8  
MONTH TO DATE 4.6 3.0 1.6 5.1  
SINCE OCT 1 4.6 5.4 -0.8 7.2  
SINCE JUL 1 4.6 5.4 -0.8 7.2  
SNOW DEPTH 1  
 
DEGREE DAYS  
HEATING  
YESTERDAY 44 32 12 35  
MONTH TO DATE 394 392 2 396  
SINCE DEC 1 394 392 2 396  
SINCE JUL 1 1397 1555 -158 1243  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 864 736 128 1158    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (270)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SW (240)  
AVERAGE WIND SPEED 9.5  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT SNOW  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88 900 PM  
LOWEST 50 100 PM  
AVERAGE 69  
   
......................................................
 
 
 
THE PITTSBURGH PA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 40 67 1901  
MINIMUM TEMPERATURE (F) 26 3 1914  
 
 
SUNRISE AND SUNSET  
DECEMBER 14 2017......SUNRISE 737 AM EST SUNSET 455 PM EST  
DECEMBER 15 2017......SUNRISE 737 AM EST SUNSET 455 PM EST  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
SNOW DEPTH IS MEASURED AT 7 AM EST OR 8 AM EDT.  
 

 
 
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