902  
CDUS43 KUNR 220040  
CLIRAP  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RAPID CITY SD  
639 PM MDT THU SEP 21 2017  
 
   
...............................
 
 
   
..THE RAPID CITY AIRPORT SD CLIMATE SUMMARY FOR SEPTEMBER 21 2017
 
 
VALID TODAY AS OF 0500 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1942 TO 2017  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 78 156 PM 92 2013 73 5 75  
MINIMUM 51 608 AM 23 1995 44 7 50  
AVERAGE 65 58 7 63  
 
PRECIPITATION (IN)  
TODAY 0.00 0.45 1998 0.05 -0.05 0.00  
MONTH TO DATE 0.77 0.90 -0.13 0.38  
SINCE SEP 1 0.77 0.90 -0.13 0.38  
SINCE JAN 1 9.93 13.53 -3.60 11.35  
 
SNOWFALL (IN)  
TODAY 0.0 T 1995 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.1 -0.1 0.0  
SINCE SEP 1 0.0 0.1 -0.1 0.0  
SINCE JUL 1 0.0 0.1 -0.1 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 8 -8 2  
MONTH TO DATE 90 99 -9 79  
SINCE SEP 1 90 99 -9 79  
SINCE JUL 1 97 136 -39 111  
 
COOLING  
TODAY 0 1 -1 0  
MONTH TO DATE 83 54 29 30  
SINCE SEP 1 83 54 29 30  
SINCE JAN 1 707 626 81 646    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION N (350)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION N (350)  
AVERAGE WIND SPEED 14.1  
 
 
SKY COVER  
AVERAGE SKY COVER 0.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 54 600 AM  
LOWEST 26 200 PM  
AVERAGE 40  
   
......................................................
 
 
 
THE RAPID CITY AIRPORT SD CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 95 2007  
MINIMUM TEMPERATURE (F) 43 19 1995  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 21 2017.....SUNRISE 639 AM MDT SUNSET 651 PM MDT  
SEPTEMBER 22 2017.....SUNRISE 640 AM MDT SUNSET 649 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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