Climatological Report (Monthly)
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CXUS53 KABR 011513
CLMPIR


CLIMATE REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
900 AM CST MON JAN 1 2018

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

...THE PIERRE SD CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1892 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              76   12/03/1941
 LOW              -31   12/30/1990
HIGHEST            58   12/10        MM      MM       40  12/04
LOWEST            -25   12/31        MM      MM      -21  12/18
AVG. MAXIMUM     33.5              31.3     2.2     24.5
AVG. MINIMUM     13.5              12.1     1.4      7.1
MEAN             23.5              21.7     1.8     15.8
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32     11              14.8    -3.8       20
DAYS MIN <= 32     30              30.6    -0.6       31
DAYS MIN <= 0       6               5.3     0.7       10

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         2.91   1951
 MINIMUM            T   2001
                        1986
                        1905
TOTALS           0.47              0.55   -0.08     1.70
DAYS >= .01         5               5.8    -0.8        8
DAYS >= .10         3               1.7     1.3        4
DAYS >= .50         0               0.1    -0.1        1
DAYS >= 1.00        0               0.0     0.0        0

SNOWFALL (INCHES)
RECORDS
 TOTAL           31.3   1951
 SNOW DEPTH        27   12/27/1950
                        12/05/2005
TOTALS            4.4               4.9    -0.5      8.3
SINCE 7/1         4.4              11.2    -6.8     18.4
SNOWDEPTH AVG.      0                MM      MM        3
DAYS >= TRACE      11               5.5     5.5       16
DAYS >= 1.0         2               1.9     0.1        3
GREATEST
 SNOW DEPTH         3   12/31                          8  12/20
                                                          12/18

DEGREE_DAYS
HEATING TOTAL    1279              1342     -63     1519
 SINCE 7/1       2736              2962    -226     2656
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        868               868       0      961

FREEZE DATES
RECORD
 EARLIEST     MM
 LATEST       MM
EARLIEST                        MM
LATEST                          MM
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              12.8
RESULTANT WIND SPEED/DIRECTION   8/311
HIGHEST WIND SPEED/DIRECTION    46/320    DATE  12/04
HIGHEST GUST SPEED/DIRECTION    57/320    DATE  12/04

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           14
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY          5

AVERAGE RH (PERCENT)     70

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                4     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                1     SNOW                       3
LIGHT SNOW               12     SLEET                      0
FOG                      10     FOG W/VIS <= 1/4 MILE      1
HAZE                      3

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

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