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

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CDUS43 KLSX 210729
CLISTL


CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
227 AM CDT SUN MAY 21 2017


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

...THE ST. LOUIS CLIMATE SUMMARY FOR MAY 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         82    419 PM  93    1902  77      5       73
  MINIMUM         58    112 AM  41    1981  58      0       58
                                      1894
  AVERAGE         70                        68      2       66

PRECIPITATION (IN)
  YESTERDAY        1.32          1.66 1947   0.15   1.17     0.01
  MONTH TO DATE    5.02                      2.95   2.07     3.12
  SINCE MAR 1     19.63                      9.96   9.67     9.90
  SINCE JAN 1     21.92                     14.60   7.32    11.50

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 MAR 1      1.8                       2.7   -0.9      0.3
  SINCE JUL 1      3.2                      17.7  -14.5     10.9
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                         2     -2        0
  MONTH TO DATE   54                        62     -8       83
  SINCE MAR 1    661                       920   -259      654
  SINCE JUL 1   3394                      4518  -1124     3484

 COOLING
  YESTERDAY        5                         5      0        1
  MONTH TO DATE  117                        64     53       30
  SINCE MAR 1    190                       110     80       90
  SINCE JAN 1    192                       110     82       90
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    28   HIGHEST WIND DIRECTION     W (260)
  HIGHEST GUST SPEED    35   HIGHEST GUST DIRECTION     W (260)
  AVERAGE WIND SPEED     8.9


SKY COVER
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  THUNDERSTORM
  HEAVY RAIN
  RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    87           900 AM
 LOWEST     54           300 PM
 AVERAGE    71

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


THE ST. LOUIS CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   78        93      1941
 MINIMUM TEMPERATURE (F)   59        38      1883


SUNRISE AND SUNSET
MAY 21 2017...........SUNRISE   544 AM CDT   SUNSET   812 PM CDT
MAY 22 2017...........SUNRISE   544 AM CDT   SUNSET   813 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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