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

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CDUS43 KLSX 132226
CLISTL

CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
526 PM CDT WED AUG 13 2025

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

...THE ST. LOUIS CLIMATE SUMMARY FOR AUGUST 13 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         89    325 PM 103    1936  89      0       81
  MINIMUM         71    445 AM  50    1964  70      1       66
  AVERAGE         80                        80      0       74

PRECIPITATION (IN)
  TODAY            0.00          1.18 1973   0.11  -0.11     0.00
  MONTH TO DATE    0.31                      1.53  -1.22     0.54
  SINCE JUN 1      9.27                      9.95  -0.68    10.05
  SINCE JAN 1     30.92                     27.82   3.10    30.84

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           15                        14      1        9
  MONTH TO DATE  183                       194    -11      175
  SINCE JUN 1   1136                      1021    115     1106
  SINCE JAN 1   1307                      1216     91     1419
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     N (350)
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     N (340)
  AVERAGE WIND SPEED     5.0


SKY COVER
  AVERAGE SKY COVER 0.3


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           400 AM
 LOWEST     48           400 PM
 AVERAGE    71

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


THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   89       103      2007
 MINIMUM TEMPERATURE (F)   70        55      1933


SUNRISE AND SUNSET
AUGUST 13 2025........SUNRISE   614 AM CDT   SUNSET   758 PM CDT
AUGUST 14 2025........SUNRISE   615 AM CDT   SUNSET   757 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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