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

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CDUS43 KLSX 152227
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
426 PM CST FRI DEC 15 2017


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

...THE ST. LOUIS CLIMATE SUMMARY FOR DECEMBER 15 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         45    301 PM  76    1948  42      3       21
  MINIMUM         28   1252 AM  -5    1901  27      1       15
  AVERAGE         37                        34      3       18

PRECIPITATION (IN)
  TODAY            0.00          2.76 1992   0.09  -0.09     0.00
  MONTH TO DATE    0.15                      1.45  -1.30     0.30
  SINCE DEC 1      0.15                      1.45  -1.30     0.30
  SINCE JAN 1     35.96                     39.57  -3.61    40.61

SNOWFALL (IN)
  TODAY            0.0           6.9  2007   0.1   -0.1      0.0
  MONTH TO DATE    T                         1.7   -1.7       T
  SINCE DEC 1      T                         1.7   -1.7       T
  SINCE JUL 1      T                         2.4   -2.4       T
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  TODAY           28                        31     -3       47
  MONTH TO DATE  371                       424    -53      478
  SINCE DEC 1    371                       424    -53      478
  SINCE JUL 1   1073                      1250   -177      969

 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    20   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION     W (290)
  AVERAGE WIND SPEED     9.2


SKY COVER
  AVERAGE SKY COVER 0.6



RELATIVE HUMIDITY (PERCENT)
 HIGHEST    75           100 AM
 LOWEST     37           200 PM
 AVERAGE    56

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


THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   42        70      1889
 MINIMUM TEMPERATURE (F)   26        -8      1989


SUNRISE AND SUNSET
DECEMBER 15 2017......SUNRISE   713 AM CST   SUNSET   441 PM CST
DECEMBER 16 2017......SUNRISE   713 AM CST   SUNSET   441 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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