938
CXUS53 KFSD 012247
CLMHON

CLIMATE REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
546 PM CDT WED OCT 01 2025

...................................

...THE HURON CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1881 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            106   09/06/1970
                       09/09/1904
 LOW              18   09/29/1899
                       09/27/1893
HIGHEST           93   09/29         MM      MM       90  09/15
                                                          09/28
                                                          09/29
LOWEST            37   09/07         MM      MM       37  09/22
AVG. MAXIMUM    79.0               75.7     3.3     83.0
AVG. MINIMUM    54.5               49.5     5.0     53.3
MEAN            66.7               62.6     4.1     68.1
DAYS MAX >= 90     1                2.3    -1.3        3
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        6.75   1901
 MINIMUM           T   1998
TOTALS          1.30               2.43   -1.13     0.16
DAILY AVG.      0.04               0.08   -0.04     0.01
DAYS >= .01        6                6.8    -0.8        4
DAYS >= .10        4                4.4    -0.4        0
DAYS >= .50        1                1.7    -0.7        0
DAYS >= 1.00       0                0.7    -0.7        0
GREATEST
 24 HR. TOTAL   0.91   09/17 TO 09/18

DEGREE DAYS
HEATING TOTAL     59                150     -91       48
 SINCE 7/1        84                175     -91       60
COOLING TOTAL    116                 77      39      147
 SINCE 1/1       903                747     156      772
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.9
HIGHEST WIND SPEED/DIRECTION    43/330    DATE  09/04
HIGHEST GUST SPEED/DIRECTION    57/340    DATE  09/04

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.22
NUMBER OF DAYS FAIR           23
NUMBER OF DAYS PC              3
NUMBER OF DAYS CLOUDY          4

AVERAGE RH (PERCENT)     71

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       1
LIGHT RAIN               12     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      14     FOG W/VIS <= 1/4 MILE      5
HAZE                      1

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$