Climatological Report (Monthly)
Issued by NWS Rapid City, SD

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000
CXUS53 KUNR 011615
CLMUNR


CLIMATE REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
915 AM MST MON JAN 1 2018

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

...THE EAST RAPID CITY SD CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1888 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              79   12/05/1939
 LOW              -28   12/20/1916
HIGHEST            62   12/10                         54  12/30
                        12/03
LOWEST            -17   12/31                        -15  12/17
                        12/30
AVG. MAXIMUM     36.0              36.6    -0.6     29.0
AVG. MINIMUM     17.0              18.1    -1.1     10.6
MEAN             26.5              27.3    -0.8     19.8
DAYS MAX >= 90      0                                  0
DAYS MAX <= 32     11                                 15
DAYS MIN <= 32     26                                 31
DAYS MIN <= 0       6                                  7

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         1.00   1909
 MINIMUM         0.01   1896
TOTALS           0.30              0.32   -0.02     0.82
DAILY AVG.       0.01              0.01    0.00     0.03
DAYS >= .01        11                                  4
DAYS >= .10         0                                  2
DAYS >= .50         0                                  0
DAYS >= 1.00        0                                  0
GREATEST
 24 HR. TOTAL    0.09   12/30 TO 12/30              0.41

SNOWFALL (INCHES)
RECORDS
 TOTAL           15.5   2015
TOTALS            7.3               5.2     2.1     12.1
SINCE 7/1         8.4              13.8    -5.4     15.8
SNOWDEPTH AVG.      1                 2      -1        2
DAYS >= 1.0         2               1.8     0.2        2
GREATEST
 SNOW DEPTH         4   12/31                          5  12/29
                                                          12/28
                                                          12/27
 24 HR TOTAL      2.1   12/30 TO 12/30               5.7

DEGREE_DAYS
HEATING TOTAL    1191              1167      24     1393
 SINCE 7/1       2571              2747    -176     2424
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        854               665     189      813
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              11.6
HIGHEST WIND SPEED/DIRECTION    45/320    DATE  12/04
HIGHEST GUST SPEED/DIRECTION    67/330    DATE  12/08

AVERAGE RH (PERCENT)     61

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                2     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                1     SNOW                       4
LIGHT SNOW               17     SLEET                      0
FOG                       0     FOG W/VIS <= 1/4 MILE      0
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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