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

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CDUS43 KLSX 312227
CLISTL

CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
527 PM CDT SUN AUG 31 2025

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

...THE ST. LOUIS CLIMATE SUMMARY FOR AUGUST 31 2025...
VALID AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1874 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         82    234 PM 103    2011  86     -4       86
                                      2013
  MINIMUM         68    619 AM  49    1967  66      2       71
  AVERAGE         75                        76     -1       79

PRECIPITATION (IN)
  TODAY            0.00          1.48 2012   0.10  -0.10     0.02
  MONTH TO DATE    1.48                      3.38  -1.90     1.38
  SINCE JUN 1     10.44                     11.80  -1.36    10.89
  SINCE JAN 1     32.09                     29.67   2.42    31.68

SNOWFALL (IN)
  TODAY            0.0           0.0  2015   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE JUN 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
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE JUN 1      0                         4     -4        0
  SINCE JUL 1      0                         0      0        0

 COOLING
  TODAY           10                        11     -1       14
  MONTH TO DATE  398                       428    -30      464
  SINCE JUN 1   1351                      1255     96     1395
  SINCE JAN 1   1522                      1450     72     1708
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION    NE (40)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION    NE (40)
  AVERAGE WIND SPEED     8.5


SKY COVER
  AVERAGE SKY COVER 0.7


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    70           400 AM
 LOWEST     42           400 PM
 AVERAGE    56

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


THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   86       104      1984
                                             2011
 MINIMUM TEMPERATURE (F)   66        49      1949
                                             1967


SUNRISE AND SUNSET
AUGUST 31 2025........SUNRISE   630 AM CDT   SUNSET   733 PM CDT
SEPTEMBER  1 2025.....SUNRISE   631 AM CDT   SUNSET   731 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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