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

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CDUS43 KLSX 222227
CLISTL

CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
527 PM CDT MON SEP 22 2025

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

...THE ST. LOUIS CLIMATE SUMMARY FOR SEPTEMBER 22 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         81    359 PM  95    1956  79      2       83
                                      2017
  MINIMUM         67    724 AM  40    1974  59      8       70
                                      1995
  AVERAGE         74                        69      5       77

PRECIPITATION (IN)
  TODAY            0.09          1.98 2024   0.09   0.00     1.98
  MONTH TO DATE    0.32                      2.23  -1.91     2.06
  SINCE SEP 1      0.32                      2.23  -1.91     2.06
  SINCE JAN 1     32.41                     31.90   0.51    33.74

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 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
  TODAY            0                         2     -2        0
  MONTH TO DATE    4                        11     -7        3
  SINCE SEP 1      4                        11     -7        3
  SINCE JUL 1      4                        12     -8        3

 COOLING
  TODAY            9                         5      4       12
  MONTH TO DATE  212                       178     34      225
  SINCE SEP 1    212                       178     34      225
  SINCE JAN 1   1733                      1628    105     1933
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION    SE (150)
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION    SE (150)
  AVERAGE WIND SPEED     6.2


SKY COVER
  AVERAGE SKY COVER 0.9


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    97           300 AM
 LOWEST     60           400 PM
 AVERAGE    79

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


THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   79        94      1881
                                             1891
 MINIMUM TEMPERATURE (F)   58        36      1974


SUNRISE AND SUNSET
SEPTEMBER 22 2025.....SUNRISE   650 AM CDT   SUNSET   658 PM CDT
SEPTEMBER 23 2025.....SUNRISE   650 AM CDT   SUNSET   656 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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