Climatological Report (Daily)
Issued by NWS St Louis, MO

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CDUS43 KLSX 180913
CLICOU


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
312 AM CST MON DEC 18 2017


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

...THE COLUMBIA ASOS CLIMATE SUMMARY FOR DECEMBER 17 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1890 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         48   1134 AM  65    1962  40      8       36
                                      1941
                                      1939
  MINIMUM         42    921 AM  -5    1989  23     19       10
  AVERAGE         45                        32     13       23

PRECIPITATION (IN)
  YESTERDAY        0.06          1.46 1924   0.07  -0.01     0.06
  MONTH TO DATE    0.12                      1.45  -1.33     0.56
  SINCE DEC 1      0.12                      1.45  -1.33     0.56
  SINCE JAN 1     37.52                     41.63  -4.11    39.61

SNOWFALL (IN)
  YESTERDAY        0.0           2.0  1945   0.1   -0.1      0.5
                                      1924
  MONTH TO DATE    T                         2.1   -2.1      0.5
  SINCE DEC 1      T                         2.1   -2.1      0.5
  SINCE JUL 1      T                         3.0   -3.0      0.5
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       20                        33    -13       42
  MONTH TO DATE  432                       525    -93      600
  SINCE DEC 1    432                       525    -93      600
  SINCE JUL 1   1212                      1510   -298     1183

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1   1401                      1249    152     1632
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION    SW (210)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION    SW (230)
  AVERAGE WIND SPEED     7.5


SKY COVER
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100
 LOWEST     49
 AVERAGE    75

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


THE COLUMBIA ASOS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   40        71      1939
 MINIMUM TEMPERATURE (F)   23        -8      1983
                                             1901


SUNRISE AND SUNSET
DECEMBER 18 2017......SUNRISE   722 AM CST   SUNSET   449 PM CST
DECEMBER 19 2017......SUNRISE   723 AM CST   SUNSET   450 PM CST


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




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