773  
CDUS41 KILN 200543  
CLIDAY  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE WILMINGTON OH  
143 AM EDT TUE MAY 20 2025  
   
...............................  
 
   
..THE DAYTON OH CLIMATE SUMMARY FOR MAY 19 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 76 2:59 PM 92 1911 75 1 88  
1962  
MINIMUM 50 4:57 AM 33 2002 55 -5 62  
AVERAGE 63 65 -2 75  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.68 2020 0.14 -0.14 0.00  
MONTH TO DATE 4.06 2.81 1.25 2.88  
SINCE MAR 1 14.06 10.77 3.29 10.68  
SINCE JAN 1 17.91 16.20 1.71 17.78  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.0 MM 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE MAR 1 0.5 4.3 -3.8 T  
SINCE JUL 1 22.5 25.0 -2.5 13.6  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 2 4 -2 0  
MONTH TO DATE 63 95 -32 18  
SINCE MAR 1 927 1161 -234 828  
SINCE JUL 1 4727 5105 -378 4190  
 
COOLING  
YESTERDAY 0 4 -4 10  
MONTH TO DATE 34 42 -8 64  
SINCE MAR 1 59 59 0 99  
SINCE JAN 1 59 59 0 99    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION NE (30)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 7.0  
 
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 2:00 AM  
LOWEST 41 5:00 PM  
AVERAGE 61  
   
......................................................  
 
THE DAYTON OH CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 91 1911  
MINIMUM TEMPERATURE (F) 55 37 1894  
 
SUNRISE AND SUNSET  
MAY 20 2025...........SUNRISE 6:17 AM EDT SUNSET 8:50 PM EDT  
MAY 21 2025...........SUNRISE 6:17 AM EDT SUNSET 8:51 PM EDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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