Climatological Report (Monthly)
Issued by NWS Sioux Falls, SD

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CXUS53 KFSD 011730
CLMHON

CLIMATE REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1130 AM CST TUE JAN 1 2019

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

...THE HURON CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1881 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              71   12/06/1939
 LOW              -34   12/25/1884
HIGHEST            50   12/19        MM      MM       54  12/18
LOWEST            -17   12/29        MM      MM      -31  12/31
AVG. MAXIMUM     34.9              29.0     5.9     31.2
AVG. MINIMUM     13.6               9.5     4.1     10.5
MEAN             24.2              19.2     5.0     20.8
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32     12              17.0    -5.0       14
DAYS MIN <= 32     31              30.6     0.4       30
DAYS MIN <= 0       3               7.2    -4.2       10

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         2.15   1931
 MINIMUM            T   1986
                        1943
TOTALS           1.18              0.52    0.66     0.50
DAILY AVG.       0.04              0.02    0.02     0.02
DAYS >= .01        10               5.8     4.2        6
DAYS >= .10         2               1.6     0.4        1
DAYS >= .50         1               0.1     0.9        0
DAYS >= 1.00        0               0.0     0.0        0
GREATEST
 24 HR. TOTAL    0.55   12/26 TO 12/27

SNOWFALL (INCHES)
RECORDS
 TOTAL           26.0   2009
                        1968
TOTALS            8.9               8.0     0.9      6.9
SINCE 7/1         9.9              16.3    -6.4      8.2
SNOWDEPTH AVG.      1                 4      -3        1
DAYS >= 1.0         3               2.2     0.8        2
GREATEST
 SNOW DEPTH         8   12/30                          4  12/31
                        12/29                             12/30
                        12/28
 24 HR TOTAL      5.1   12/27 TO 12/28

DEGREE_DAYS
HEATING TOTAL    1257              1418    -161     1363
 SINCE 7/1       3153              3120      33     2928
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        950               742     208      730
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.9
HIGHEST WIND SPEED/DIRECTION    39/350    DATE  12/28
HIGHEST GUST SPEED/DIRECTION    51/350    DATE  12/27

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           17
NUMBER OF DAYS PC              5
NUMBER OF DAYS CLOUDY          9

AVERAGE RH (PERCENT)     77

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP                0
HEAVY RAIN                0     RAIN                        0
LIGHT RAIN                4     FREEZING RAIN               1
LT FREEZING RAIN          4     HAIL                        0
HEAVY SNOW                0     SNOW                        4
LIGHT SNOW                8     SLEET                       0
FOG                      20     FOG W/VIS <= 1/4 MILE       6
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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