583  
CDUS43 KUNR 180833  
CLIRAP  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE RAPID CITY SD  
232 AM MDT TUE SEP 18 2018  
 
   
...............................
 
 
   
..THE RAPID CITY AIRPORT SD CLIMATE SUMMARY FOR SEPTEMBER 17 2018
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1942 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 74 311 PM 101 2000 75 -1 73  
MINIMUM 51 1111 PM 26 1991 45 6 33  
AVERAGE 63 60 3 53  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.48 1946 0.04 -0.04 0.00  
MONTH TO DATE 1.10 0.72 0.38 0.74  
SINCE SEP 1 1.10 0.72 0.38 0.74  
SINCE JAN 1 22.29 13.35 8.94 9.90  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1991 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 2 6 -4 12  
MONTH TO DATE 12 70 -58 66  
SINCE SEP 1 12 70 -58 66  
SINCE JUL 1 63 107 -44 73  
 
COOLING  
YESTERDAY 0 2 -2 0  
MONTH TO DATE 48 50 -2 83  
SINCE SEP 1 48 50 -2 83  
SINCE JAN 1 488 622 -134 707    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 6.3  
 
 
SKY COVER  
AVERAGE SKY COVER 0.2  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 1100 PM  
LOWEST 49 200 PM  
AVERAGE 69  
   
......................................................
 
 
 
THE RAPID CITY AIRPORT SD CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 75 97 1998  
MINIMUM TEMPERATURE (F) 45 24 1991  
 
 
SUNRISE AND SUNSET  
SEPTEMBER 18 2018.....SUNRISE 635 AM MDT SUNSET 657 PM MDT  
SEPTEMBER 19 2018.....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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