Climatological Report (Monthly)
Issued by NWS Aberdeen, SD

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CXUS53 KABR 021745
CLMABR


CLIMATE REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
1134 AM CST WED JAN 2 2019

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

...THE ABERDEEN SD CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1893 TO 2019

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              69   12/06/1939
 LOW              -39   12/31/1967
HIGHEST            49   12/14        MM      MM       51  12/02
LOWEST            -21   12/29        MM      MM      -32  12/31
AVG. MAXIMUM     33.1              25.5     7.6     28.6
AVG. MINIMUM     10.9               5.9     5.0      6.5
MEAN             22.0              15.7     6.3     17.6
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32     15              19.9    -4.9       16
DAYS MIN <= 32     31              30.8     0.2       31
DAYS MIN <= 0       3               9.9    -6.9       12

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         3.00   1909
 MINIMUM            T   1986
TOTALS           1.01              0.52    0.49     0.35
DAYS >= .01         7               6.5     0.5        7
DAYS >= .10         3               1.6     1.4        1
DAYS >= .50         0               0.1    -0.1        0
DAYS >= 1.00        0               0.0     0.0        0

SNOWFALL (INCHES)
RECORDS
 TOTAL           24.6   2010
 SNOW DEPTH        21   12/31/1996
TOTALS           12.3               6.9     5.4      3.6
SINCE 7/1        19.1              14.6     4.5      4.4
SNOWDEPTH AVG.      1                 4      -3        0
DAYS >= TRACE      15               6.7     8.3       12
DAYS >= 1.0         4               2.1     1.9        1
GREATEST
 SNOW DEPTH        10   12/31                          2  12/31
                                                          12/30

DEGREE_DAYS
HEATING TOTAL    1324              1528    -204     1463
 SINCE 7/1       3470              3491     -21     3240
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        849               525     324      552

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

WIND (MPH)
AVERAGE WIND SPEED              9.9
RESULTANT WIND SPEED/DIRECTION   2/355
HIGHEST WIND SPEED/DIRECTION    38/350    DATE  12/27
HIGHEST GUST SPEED/DIRECTION    50/340    DATE  12/27

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           14
NUMBER OF DAYS PC              8
NUMBER OF DAYS CLOUDY          9

AVERAGE RH (PERCENT)     78

WEATHER CONDITIONS. NUMBER OF DAYS WITH
  0
  0
  0
  0
  3
  0
  9
HAZE                      4

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

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