195  
CXUS53 KFSD 011752 RRA  
CLMSUX  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
1247 PM CDT WED SEP 01 2021  
   
...............................
 
 
   
..THE SIOUX CITY IA CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2021
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1889 TO 2021  
 
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S  
VALUE DATE(S) VALUE FROM VALUE DATE(S)  
NORMAL    
............................................................
 
 
TEMPERATURE (F)  
RECORD  
HIGH 108 08/24/1936  
08/04/1934  
LOW 37 08/20/1950  
HIGHEST 96 08/23 MM MM 96 08/23  
LOWEST 50 08/02 MM MM 47 08/04  
08/14  
AVG. MAXIMUM 86.6 82.6 4.0 85.9  
AVG. MINIMUM 62.2 60.8 1.4 60.9  
MEAN 74.4 71.7 2.7 73.4  
DAYS MAX >= 90 9 5.1 3.9 8  
DAYS MAX <= 32 0 0.0 0.0 0  
DAYS MIN <= 32 0 0.0 0.0 0  
DAYS MIN <= 0 0 0.0 0.0 0  
 
PRECIPITATION (INCHES)  
RECORD  
MAXIMUM 10.12 2014  
MINIMUM 0.12 1971  
TOTALS 4.04 3.94 0.10 1.32  
DAILY AVG. 0.13 0.13 0.00 0.04  
DAYS >= .01 10 9.8 0.2 7  
DAYS >= .10 7 6.1 0.9 6  
DAYS >= .50 4 2.4 1.6 0  
DAYS >= 1.00 1 1.2 -0.2 0  
GREATEST  
24 HR. TOTAL 1.37 08/30 TO 08/31  
 
DEGREE DAYS  
HEATING TOTAL 0 11 -11 2  
SINCE 7/1 1 10 -9 MM  
COOLING TOTAL 297 219 78 269  
SINCE 1/1 948 768 180 MM    
............................................................
 
 
WIND (MPH)  
AVERAGE WIND SPEED 8.7  
HIGHEST WIND SPEED/DIRECTION 37/280 DATE 08/27  
HIGHEST GUST SPEED/DIRECTION 56/270 DATE 08/27  
 
SKY COVER  
POSSIBLE SUNSHINE (PERCENT) MM  
AVERAGE SKY COVER 0.16  
NUMBER OF DAYS FAIR 27  
NUMBER OF DAYS PC 4  
NUMBER OF DAYS CLOUDY 0  
 
AVERAGE RH (PERCENT) 69  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
THUNDERSTORM 11 MIXED PRECIP 0  
HEAVY RAIN 6 RAIN 5  
LIGHT RAIN 14 FREEZING RAIN 0  
LT FREEZING RAIN 0 HAIL 0  
HEAVY SNOW 0 SNOW 0  
LIGHT SNOW 0 SLEET 0  
FOG 15 FOG W/VIS <= 1/4 MILE 3  
HAZE 3  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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