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

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CDUS43 KLSX 210732
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
231 AM CDT THU SEP 21 2017


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

...THE ST. LOUIS CLIMATE SUMMARY FOR SEPTEMBER 20 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         97R   254 PM  96    1940  78     19       93
  MINIMUM         73    612 AM  40    1875  59     14       72
  AVERAGE         85                        69     16       83

PRECIPITATION (IN)
  YESTERDAY        0.00          1.40 1876   0.11  -0.11     0.00
  MONTH TO DATE    0.27                      2.06  -1.79     4.68
  SINCE SEP 1      0.27                      2.06  -1.79     4.68
  SINCE JAN 1     30.57                     29.81   0.76    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                         2     -2        0
  MONTH TO DATE    6                        11     -5        0
  SINCE SEP 1      6                        11     -5        0
  SINCE JUL 1      6                        12     -6        0

 COOLING
  YESTERDAY       20                         5     15       18
  MONTH TO DATE  153                       164    -11      240
  SINCE SEP 1    153                       164    -11      240
  SINCE JAN 1   1755                      1563    192     1945
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     S (170)
  AVERAGE WIND SPEED     9.5


SKY COVER
  AVERAGE SKY COVER 0.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    87           400 AM
 LOWEST     40           300 PM
 AVERAGE    64

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


THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   78        97      1881
 MINIMUM TEMPERATURE (F)   58        40      1983


SUNRISE AND SUNSET
SEPTEMBER 21 2017.....SUNRISE   649 AM CDT   SUNSET   700 PM CDT
SEPTEMBER 22 2017.....SUNRISE   649 AM CDT   SUNSET   658 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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