234  
CDUS41 KILN 150630  
CLIDAY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE WILMINGTON OH  
130 AM EST FRI DEC 15 2017  
 
   
...............................
 
 
   
..THE DAYTON OH CLIMATE SUMMARY FOR DECEMBER 14 2017
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1869 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 33 1205 AM 66 2015 38 -5 18  
1901  
MINIMUM 18 1152 PM -15 1898 25 -7 3  
AVERAGE 26 31 -5 11  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.70 1901 0.09 -0.09 0.00  
MONTH TO DATE 0.42 1.43 -1.01 1.18  
SINCE DEC 1 0.42 1.43 -1.01 1.18  
SINCE JAN 1 49.71 39.36 10.35 33.97  
 
SNOWFALL (IN)  
YESTERDAY 0.0 6.2 1951 0.1 -0.1 0.0  
MONTH TO DATE 2.4 1.5 0.9 4.0  
SINCE DEC 1 2.4 1.5 0.9 4.0  
SINCE JUL 1 2.4 2.5 -0.1 4.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 39 34 5 54  
MONTH TO DATE 452 440 12 491  
SINCE DEC 1 452 440 12 491  
SINCE JUL 1 1459 1551 -92 1264  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 899 891 8 1247    
..............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION NW (320)  
HIGHEST WIND SPEED 35 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 45 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 8.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 91 1000 PM  
LOWEST 68 500 PM  
AVERAGE 80  
   
......................................................
 
 
 
THE DAYTON OH CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 38 63 1948  
MINIMUM TEMPERATURE (F) 24 -10 1901  
 
 
SUNRISE AND SUNSET  
DECEMBER 15 2017......SUNRISE 751 AM EST SUNSET 513 PM EST  
DECEMBER 16 2017......SUNRISE 752 AM EST SUNSET 513 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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