499  
CDUS43 KUNR 180837  
CLIRAP  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RAPID CITY SD  
237 AM MDT THU SEP 18 2025  
   
...............................  
 
   
..THE RAPID CITY AIRPORT SD CLIMATE SUMMARY FOR SEPTEMBER 17 2025  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1942 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 68 1100 AM 101 2000 76 -8 93  
MINIMUM 57 1159 PM 26 1991 46 11 57  
AVERAGE 63 61 2 75  
 
PRECIPITATION (IN)  
YESTERDAY 0.57R 0.48 1946 0.04 0.53 0.18  
MONTH TO DATE 1.03 0.67 0.36 1.18  
SINCE SEP 1 1.03 0.67 0.36 1.18  
SINCE JAN 1 16.52 14.66 1.86 11.93  
 
DEGREE DAYS  
HEATING  
YESTERDAY 2 6 -4 0  
MONTH TO DATE 38 68 -30 1  
SINCE SEP 1 38 68 -30 1  
SINCE JUL 1 49 106 -57 11  
 
COOLING  
YESTERDAY 0 2 -2 10  
MONTH TO DATE 79 50 29 133  
SINCE SEP 1 79 50 29 133  
SINCE JAN 1 769 592 177 863    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NE (30)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NE (30)  
AVERAGE WIND SPEED 11.8  
 
SKY COVER  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 300 PM  
LOWEST 63 1100 AM  
AVERAGE 77  
   
......................................................  
 
THE RAPID CITY AIRPORT SD CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 97 1998  
MINIMUM TEMPERATURE (F) 46 24 1991  
 
SUNRISE AND SUNSET  
SEPTEMBER 18 2025.....SUNRISE 635 AM MDT SUNSET 656 PM MDT  
SEPTEMBER 19 2025.....SUNRISE 636 AM MDT SUNSET 655 PM MDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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