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

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CDUS43 KLSX 100727
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
126 AM CST SUN DEC 10 2017


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

...THE ST. LOUIS CLIMATE SUMMARY FOR DECEMBER 9 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1874 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         36    159 PM  74    1918  44     -8       31
  MINIMUM         23   1147 PM  -5    1876  28     -5       17
  AVERAGE         30                        36     -6       24

PRECIPITATION (IN)
  YESTERDAY        0.00          0.80 1999   0.09  -0.09     0.00
  MONTH TO DATE    0.15                      0.91  -0.76     0.27
  SINCE DEC 1      0.15                      0.91  -0.76     0.27
  SINCE JAN 1     35.96                     39.03  -3.07    40.58

SNOWFALL (IN)
  YESTERDAY        0.0           2.0  1944   0.1   -0.1      0.0
  MONTH TO DATE    T                         0.9   -0.9      0.0
  SINCE DEC 1      T                         0.9   -0.9      0.0
  SINCE JUL 1      T                         1.6   -1.6      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       35                        29      6       41
  MONTH TO DATE  210                       245    -35      269
  SINCE DEC 1    210                       245    -35      269
  SINCE JUL 1    912                      1071   -159      760

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1   1959                      1646    313     2162
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    25   HIGHEST WIND DIRECTION    NW (330)
  HIGHEST GUST SPEED    32   HIGHEST GUST DIRECTION    NW (330)
  AVERAGE WIND SPEED    12.7


SKY COVER
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    78           900 AM
 LOWEST     39          1200 AM
 AVERAGE    59

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


THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   44        73      1889
 MINIMUM TEMPERATURE (F)   28        -4      1917


SUNRISE AND SUNSET
DECEMBER 10 2017......SUNRISE   709 AM CST   SUNSET   440 PM CST
DECEMBER 11 2017......SUNRISE   710 AM CST   SUNSET   440 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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