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

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CDUS43 KLSX 180731
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
230 AM CDT MON SEP 18 2017


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

...THE ST. LOUIS CLIMATE SUMMARY FOR SEPTEMBER 17 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         82    315 PM  97    1931  80      2       83
  MINIMUM         71   1159 PM  37    1937  60     11       70
  AVERAGE         77                        70      7       77

PRECIPITATION (IN)
  YESTERDAY        T             2.25 1968   0.10  -0.10     0.00
  MONTH TO DATE    0.07                      1.75  -1.68     4.68
  SINCE SEP 1      0.07                      1.75  -1.68     4.68
  SINCE JAN 1     30.37                     29.50   0.87    33.16

SNOWFALL (IN)
  YESTERDAY        0.0           0.0  2015   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE SEP 1      0.0                       0.0    0.0      0.0
  SINCE JUL 1      0.0                       0.0    0.0      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE    6                         6      0        0
  SINCE SEP 1      6                         6      0        0
  SINCE JUL 1      6                         7     -1        0

 COOLING
  YESTERDAY       12                         6      6       12
  MONTH TO DATE  110                       147    -37      203
  SINCE SEP 1    110                       147    -37      203
  SINCE JAN 1   1712                      1546    166     1908
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION    NW (330)
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION    NW (320)
  AVERAGE WIND SPEED     6.5


SKY COVER
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90          1000 PM
 LOWEST     55          1200 PM
 AVERAGE    73

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


THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   79        97      1925
 MINIMUM TEMPERATURE (F)   60        42      1973


SUNRISE AND SUNSET
SEPTEMBER 18 2017.....SUNRISE   646 AM CDT   SUNSET   704 PM CDT
SEPTEMBER 19 2017.....SUNRISE   647 AM CDT   SUNSET   703 PM CDT


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




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