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

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000
CDUS43 KLSX 122226
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
425 PM CST TUE DEC 12 2017


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

...THE ST. LOUIS CLIMATE SUMMARY FOR DECEMBER 12 2017...
VALID TODAY AS OF 0400 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         41    102 AM  72    2015  43     -2       40
  MINIMUM         27    739 AM  -5    1962  28     -1       29
  AVERAGE         34                        35     -1       35

PRECIPITATION (IN)
  TODAY            0.00          1.31 1972   0.09  -0.09      T
  MONTH TO DATE    0.15                      1.19  -1.04     0.28
  SINCE DEC 1      0.15                      1.19  -1.04     0.28
  SINCE JAN 1     35.96                     39.31  -3.35    40.59

SNOWFALL (IN)
  TODAY            0.0           4.4  2010   0.2   -0.2      0.0
  MONTH TO DATE    T                         1.3   -1.3      0.0
  SINCE DEC 1      T                         1.3   -1.3      0.0
  SINCE JUL 1      T                         2.0   -2.0      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY           31                        30      1       30
  MONTH TO DATE  290                       333    -43      354
  SINCE DEC 1    290                       333    -43      354
  SINCE JUL 1    992                      1159   -167      845

 COOLING
  TODAY            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    26   HIGHEST WIND DIRECTION    NW (310)
  HIGHEST GUST SPEED    36   HIGHEST GUST DIRECTION    NW (320)
  AVERAGE WIND SPEED    16.6


SKY COVER
  AVERAGE SKY COVER 0.6



RELATIVE HUMIDITY (PERCENT)
 HIGHEST    73          1200 AM
 LOWEST     23           400 PM
 AVERAGE    48

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


THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   43        73      1948
 MINIMUM TEMPERATURE (F)   27         1      1903


SUNRISE AND SUNSET
DECEMBER 12 2017......SUNRISE   711 AM CST   SUNSET   440 PM CST
DECEMBER 13 2017......SUNRISE   711 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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