643
CXUS53 KFSD 011651 CCA
CLMFSD

CLIMATE REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1049 AM CST THU JAN 01 2026

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...THE SIOUX FALLS CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 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             63   12/03/1998
                       12/02/1998
 LOW             -31   12/29/1917
HIGHEST           49   12/27         MM      MM       57  12/07
LOWEST           -14   12/14         MM      MM        0  12/11
                                                          12/12
AVG. MAXIMUM    34.0               31.6     2.4     34.8
AVG. MINIMUM    12.1               13.4    -1.3     16.9
MEAN            23.0               22.5     0.5     25.8
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32    10               16.3    -6.3       12
DAYS MIN <= 32    31               30.4     0.6       30
DAYS MIN <= 0      5                5.9    -0.9        2

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        2.97   1945
 MINIMUM           T   1986
TOTALS          0.80               0.83   -0.03     0.66
DAILY AVG.      0.03               0.03    0.00     0.02
DAYS >= .01       10                7.0     3.0        7
DAYS >= .10        4                2.3     1.7        1
DAYS >= .50        0                0.4    -0.4        0
DAYS >= 1.00       0                0.0     0.0        0
GREATEST
 24 HR. TOTAL   0.29   12/06 TO 12/06

SNOWFALL (INCHES)
RECORDS
 TOTAL          41.1   1968
TOTALS          12.0                8.7     3.3      3.4
SINCE 7/1       20.3               16.3     4.0      4.4
SNOWDEPTH AVG.     3                                   0
DAYS >= 1.0        4                2.7     1.3        1
GREATEST
 SNOW DEPTH        8   12/08                           1  12/20
                                                          12/21
                                                          12/22
 24 HR TOTAL     4.9   12/06 TO 12/06

DEGREE DAYS
HEATING TOTAL   1294               1317     -23     1207
 SINCE 7/1      2562               2853    -291     2346
COOLING TOTAL      0                  0       0        0
 SINCE 1/1       927                847      80      835
................................................................

WIND (MPH)
AVERAGE WIND SPEED              10.3
HIGHEST WIND SPEED/DIRECTION    52/330    DATE  12/10
HIGHEST GUST SPEED/DIRECTION    71/320    DATE  12/10

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.71
NUMBER OF DAYS FAIR            1
NUMBER OF DAYS PC             15
NUMBER OF DAYS CLOUDY         15

AVERAGE RH (PERCENT)     78

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                6     FREEZING RAIN              0
LT FREEZING RAIN          3     HAIL                       0
HEAVY SNOW                2     SNOW                       4
LIGHT SNOW               15     SLEET                      1
FOG                      16     FOG W/VIS <= 1/4 MILE      5
HAZE                      0

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

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