041  
CDUS43 KUNR 180036  
CLIRAP  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RAPID CITY SD  
636 PM MDT THU SEP 17 2026  
   
...............................
 
 
   
..THE RAPID CITY AIRPORT SD CLIMATE SUMMARY FOR SEPTEMBER 17 2026
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1942 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 70 1136 AM 101 2000 76 -6 68  
MINIMUM 52 138 AM 26 1991 46 6 57  
AVERAGE 61 61 0 63  
 
PRECIPITATION (IN)  
TODAY 0.08 0.57 2025 0.04 0.04 0.57  
MONTH TO DATE 0.31 0.67 -0.36 1.03  
SINCE SEP 1 0.31 0.67 -0.36 1.03  
SINCE JAN 1 9.93 14.66 -4.73 16.52  
 
DEGREE DAYS  
HEATING  
TODAY 4 6 -2 2  
MONTH TO DATE 22 68 -46 38  
SINCE SEP 1 22 68 -46 38  
SINCE JUL 1 27 106 -79 49  
 
COOLING  
TODAY 0 2 -2 0  
MONTH TO DATE 89 50 39 79  
SINCE SEP 1 89 50 39 79  
SINCE JAN 1 923 592 331 769    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SE (150)  
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION SE (130)  
AVERAGE WIND SPEED 6.0  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 74 300 AM  
LOWEST 54 800 AM  
AVERAGE 64  
   
......................................................
 
 
THE RAPID CITY AIRPORT SD CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 97 1998  
MINIMUM TEMPERATURE (F) 46 24 1991  
 
SUNRISE AND SUNSET  
SEPTEMBER 17 2026.....SUNRISE 634 AM MDT SUNSET 659 PM MDT  
SEPTEMBER 18 2026.....SUNRISE 635 AM MDT SUNSET 657 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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