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

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133
CDUS43 KLSX 160745
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
145 AM CST SAT DEC 16 2017


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

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

PRECIPITATION (IN)
  YESTERDAY        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)
  YESTERDAY        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
  YESTERDAY       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
  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    20   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION     W (290)
  AVERAGE WIND SPEED     8.9


SKY COVER
  AVERAGE SKY COVER 0.5


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


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

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


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


SUNRISE AND SUNSET
DECEMBER 16 2017......SUNRISE   713 AM CST   SUNSET   441 PM CST
DECEMBER 17 2017......SUNRISE   714 AM CST   SUNSET   442 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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