836  
CDUS41 KILN 170531  
CLIDAY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE WILMINGTON OH  
131 AM EDT WED SEP 17 2025  
   
...............................
 
 
   
..THE DAYTON OH CLIMATE SUMMARY FOR SEPTEMBER 16 2025
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1869 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 86 4:02 PM 99 1897 79 7 87  
MINIMUM 56 7:05 AM 38 1902 57 -1 59  
AVERAGE 71 68 3 73  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 3.81 2005 0.11 -0.11 0.00  
MONTH TO DATE 0.20 1.78 -1.58 T  
SINCE SEP 1 0.20 1.78 -1.58 T  
SINCE JAN 1 30.77 30.73 0.04 27.52  
 
SNOWFALL (IN)  
YESTERDAY 0.0 MM MM 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 2 -2 0  
MONTH TO DATE 18 13 5 16  
SINCE SEP 1 18 13 5 16  
SINCE JUL 1 38 16 22 23  
 
COOLING  
YESTERDAY 6 4 2 8  
MONTH TO DATE 44 96 -52 91  
SINCE SEP 1 44 96 -52 91  
SINCE JAN 1 1063 1086 -23 1190    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 3 RESULTANT WIND DIRECTION NE (50)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 3.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 80 5:00 AM  
LOWEST 30 2:00 PM  
AVERAGE 55  
   
......................................................
 
 
THE DAYTON OH CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 78 92 1899  
1906  
1931  
MINIMUM TEMPERATURE (F) 56 39 1959  
 
SUNRISE AND SUNSET  
SEPTEMBER 17 2025.....SUNRISE 7:20 AM EDT SUNSET 7:42 PM EDT  
SEPTEMBER 18 2025.....SUNRISE 7:21 AM EDT SUNSET 7:40 PM EDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab OH Page
The Nexlab IN Page
The Nexlab KY Page Main Text Page