947
CXUS53 KFSD 012243
CLMFSD
CLIMATE REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
543 PM CDT WED OCT 01 2025
...............................
..THE SIOUX FALLS CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1893 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
............................................................
TEMPERATURE (F)
RECORD
HIGH 104 09/06/1976
09/06/1922
09/06/1913
LOW 13 09/29/1899
HIGHEST 92 09/16 MM MM 91 09/28
09/29
LOWEST 35 09/07 MM MM 42 09/23
AVG. MAXIMUM 80.0 75.6 4.4 82.2
AVG. MINIMUM 53.8 51.9 1.9 55.3
MEAN 66.9 63.8 3.1 68.7
DAYS MAX >= 90 3 1.3 1.7 2
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 0.8 -0.8 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 9.26 1986
MINIMUM 0.04 2024
TOTALS 0.22 2.73 -2.51 0.04
DAILY AVG. 0.01 0.09 -0.08 0.00
DAYS >= .01 6 8.1 -2.1 3
DAYS >= .10 0 4.6 -4.6 0
DAYS >= .50 0 1.7 -1.7 0
DAYS >= 1.00 0 0.6 -0.6 0
GREATEST
24 HR. TOTAL 0.08 09/22 TO 09/22
DEGREE DAYS
HEATING TOTAL 54 126 -72 27
SINCE 7/1 76 143 -67 32
COOLING TOTAL 120 89 31 147
SINCE 1/1 878 839 39 823
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WIND (MPH)
AVERAGE WIND SPEED 7.8
HIGHEST WIND SPEED/DIRECTION 37/330 DATE 09/04
HIGHEST GUST SPEED/DIRECTION 50/320 DATE 09/04
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.48
NUMBER OF DAYS FAIR 10
NUMBER OF DAYS PC 15
NUMBER OF DAYS CLOUDY 5
AVERAGE RH (PERCENT) 69
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 5 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 1
LIGHT RAIN 8 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 1
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 12 FOG W/VIS <= 1/4 MILE 1
HAZE 1
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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