000
CXUS53 KFSD 011549
CLMFSD

CLIMATE REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
946 AM CST TUE JAN 1 2013

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

...THE SIOUX FALLS SD CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2012...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1893 TO 2012

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            61   12/02        MM      MM       MM  MM
LOWEST             -7   12/10        MM      MM       MM  MM
AVG. MAXIMUM     31.5              28.5     3.0       MM
AVG. MINIMUM     11.6               9.8     1.8       MM
MEAN             21.6              19.2     2.4       MM
DAYS MAX >= 90      0               0.0     0.0       MM
DAYS MAX <= 32     17              17.7    -0.7       MM
DAYS MIN <= 32     31              30.5     0.5       MM
DAYS MIN <= 0       7               7.3    -0.3       MM

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         2.97   1945
 MINIMUM            T   1986
                        1944
                        1905
TOTALS           1.31              0.69    0.62       MM
DAILY AVG.       0.04              0.02    0.02       MM
DAYS >= .01         8               6.9     1.1       MM
DAYS >= .10         3               2.0     1.0       MM
DAYS >= .50         1               0.3     0.7       MM
DAYS >= 1.00        0               0.0     0.0       MM
GREATEST
 24 HR. TOTAL    0.61   12/15

SNOWFALL (INCHES)
RECORDS
 TOTAL           41.1   1968
TOTALS           12.7               8.2     4.5       MM
SINCE 7/1        13.8              16.9    -3.1       MM
SNOWDEPTH AVG.      2                 4      -2       MM
DAYS >= 1.0         5               2.4     2.6       MM
GREATEST
 SNOW DEPTH         7   12/28                         MM  MM
 24 HR TOTAL      4.9   12/27 TO 12/28

DEGREE_DAYS
HEATING TOTAL    1337              1421     -84       MM
 SINCE 7/1       2940              3133    -193       MM
COOLING TOTAL       0                 0       0       MM
 SINCE 1/1       1182               690     492       MM
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.8
HIGHEST WIND SPEED/DIRECTION    35/330    DATE  12/03
HIGHEST GUST SPEED/DIRECTION    45/320    DATE  12/03

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           14
NUMBER OF DAYS PC             10
NUMBER OF DAYS CLOUDY          7

AVERAGE RH (PERCENT)     77

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               1
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN                2     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       0
HEAVY SNOW                0     SNOW                       5
LIGHT SNOW               15     SLEET                      0
FOG                      21     FOG W/VIS <= 1/4 MILE      0
HAZE                      5

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

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