063
CXUS53 KFSD 012246
CLMSUX

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

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

...THE SIOUX CITY IA CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1889 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            103   09/02/2000
 LOW              24   09/29/1945
HIGHEST           93   09/13         MM      MM       90  09/28
LOWEST            36   09/07         MM      MM       37  09/23
AVG. MAXIMUM    79.7               76.6     3.1     83.3
AVG. MINIMUM    53.2               51.2     2.0     52.1
MEAN            66.4               63.9     2.5     67.7
DAYS MAX >= 90     2                2.3    -0.3        1
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        9.69   1965
 MINIMUM        0.07   1950
TOTALS          2.05               2.84   -0.79     0.22
DAILY AVG.      0.07               0.09   -0.02     0.01
DAYS >= .01        5                8.0    -3.0        2
DAYS >= .10        4                4.6    -0.6        1
DAYS >= .50        1                1.8    -0.8        0
DAYS >= 1.00       1                0.8     0.2        0
GREATEST
 24 HR. TOTAL   1.01   09/14 TO 09/14

DEGREE DAYS
HEATING TOTAL     55                121     -66       35
 SINCE 7/1        70                137     -67       40
COOLING TOTAL    106                 88      18      120
 SINCE 1/1       970                856     114      848
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.0
HIGHEST WIND SPEED/DIRECTION    41/240    DATE  09/14
HIGHEST GUST SPEED/DIRECTION    64/230    DATE  09/14

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.25
NUMBER OF DAYS FAIR           20
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     74

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       4
LIGHT RAIN                9     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      19     FOG W/VIS <= 1/4 MILE      6
HAZE                      2

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

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