622  
CDUS43 KFSD 182238  
CLIFSD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
538 PM CDT TUE MAY 18 2021  
   
...............................
 
 
   
..THE SIOUX FALLS CLIMATE SUMMARY FOR MAY 18 2021
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1893 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 68 2:25 PM 98 1934 72 -4 66  
MINIMUM 59 12:45 AM 28 1915 48 11 45  
AVERAGE 64 60 4 56  
 
PRECIPITATION (IN)  
TODAY T 1.22 1996 0.13 -0.13 0.00  
MONTH TO DATE 1.01 2.08 -1.07 1.27  
SINCE MAR 1 5.71 6.68 -0.97 4.48  
SINCE JAN 1 7.41 8.11 -0.70 5.46  
 
SNOWFALL (IN)  
TODAY 0.0 0.1 1968 0.0 0.0 0.0  
MONTH TO DATE T 0.1 -0.1 0.0  
SINCE MAR 1 8.5 12.4 -3.9 11.9  
SINCE JUL 1 40.0 45.3 -5.3 39.4  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 1 6 -5 9  
MONTH TO DATE 185 168 17 210  
SINCE MAR 1 1416 1648 -232 1609  
SINCE JUL 1 6768 7157 -389 7098  
 
COOLING  
TODAY 0 2 -2 0  
MONTH TO DATE 11 16 -5 8  
SINCE MAR 1 17 22 -5 8  
SINCE JAN 1 17 22 -5 8    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (110)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SE (120)  
AVERAGE WIND SPEED 8.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 8:00 AM  
LOWEST 73 3:00 PM  
AVERAGE 80  
   
......................................................
 
 
THE SIOUX FALLS CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 72 97 1934  
MINIMUM TEMPERATURE (F) 49 27 1894  
 
SUNRISE AND SUNSET  
MAY 18 2021...........SUNRISE 5:59 AM CDT SUNSET 8:49 PM CDT  
MAY 19 2021...........SUNRISE 5:58 AM CDT SUNSET 8:50 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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