239  
CXUS51 KILN 170527  
CLMDAY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE WILMINGTON OH  
127 AM EDT WED OCT 17 2018  
   
...............................
 
 
   
..THE DAYTON CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2018
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1869 TO 2018  
 
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S  
VALUE DATE(S) VALUE FROM VALUE DATE(S)  
NORMAL    
............................................................
 
 
TEMPERATURE (F)  
RECORD  
HIGH 102 09/05/1899  
LOW 28 09/30/1888  
HIGHEST 92 09/03 77 15 90 09/23  
09/21  
LOWEST 47 09/28 55 -8 46 09/30  
09/10  
AVG. MAXIMUM 78.6 75.9 2.7 76.6  
AVG. MINIMUM 61.7 54.9 6.8 56.2  
MEAN 70.2 65.4 4.8 66.4  
DAYS MAX >= 90 5 0.9 4.1 2  
DAYS MAX <= 32 0 0.0 0.0 0  
DAYS MIN <= 32 0 0.0 0.0 0  
DAYS MIN <= 0 0 0.0 0.0 0  
 
PRECIPITATION (INCHES)  
TOTALS 6.72 3.30 3.42 2.16  
DAILY AVG. 0.22 0.11 0.11 0.07  
DAYS >= .01 12 8.7 3.3 10  
DAYS >= .10 8 4.7 3.3 6  
DAYS >= .50 5 1.9 3.1 1  
DAYS >= 1.00 2 0.8 1.2 0  
GREATEST  
24 HR. TOTAL 2.70 09/08 TO 09/08 09/05 TO 09/05  
09/30 TO 09/30EATHER OBSERVED NORMAL DEPART LAST YEAR'S  
09/30 TO 09/30EATHER OBSERVED NORMAL DEPART LAST YEAR'S  
STORM TOTAL MM MM  
(MM/DD(HH)) MM 09/05(00) TO 09/05(00)  
09/30(00) TO 09/30(00)0EATHER OBSERVED NORMAL DEPART LAST YEAR'S  
09/30(00) TO 09/30(00)0EATHER OBSERVED NORMAL DEPART LAST YEAR'S  
 
SNOWFALL (INCHES)  
TOTALS 0.0 0.0 0.0 0.0  
SINCE 7/1 0.0 0.0 0.0 0.0  
DAYS >= TRACE 0 0.0 0.0 0  
DAYS >= 1.0 0 0.0 0.0 0  
GREATEST  
24 HR TOTAL 0.0 09/30 TO 09/30 09/30 TO 09/30  
09/30 TO 09/30EATHER OBSERVED NORMAL DEPART LAST YEAR'S  
09/30 TO 09/30EATHER OBSERVED NORMAL DEPART LAST YEAR'S  
STORM TOTAL MM MM  
(MM/DD(HH)) MM 09/30(00) TO 09/30(00)  
09/30(00) TO 09/30(00)0EATHER OBSERVED NORMAL DEPART LAST YEAR'S  
09/30(00) TO 09/30(00)0EATHER OBSERVED NORMAL DEPART LAST YEAR'S  
 
DEGREE_DAYS  
HEATING TOTAL 47 88 -41 73  
SINCE 7/1 47 90 -43 78  
COOLING TOTAL 209 99 110 122  
SINCE 1/1 1275 881 394 871    
.............................................................
 
 
WIND (MPH)  
AVERAGE WIND SPEED 7.4  
RESULTANT WIND SPEED/DIRECTION 1/113  
HIGHEST WIND SPEED/DIRECTION 29/130 DATE 09/04  
HIGHEST GUST SPEED/DIRECTION 41/140 DATE 09/04  
 
SKY COVER  
AVERAGE SKY COVER 0.60  
 
AVERAGE RH (PERCENT) 78  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
0  
4  
0  
0  
0  
0  
2  
HAZE 1  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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