539
CDUS43 KLSX 172233
CLISTL
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
533 PM CDT FRI OCT 17 2025
...............................
..THE ST. LOUIS CLIMATE SUMMARY FOR OCTOBER 17 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 83 357 PM 91 2016 69 14 67
MINIMUM 63 644 AM 29 1943 49 14 38
AVERAGE 73 59 14 53
PRECIPITATION (IN)
TODAY 0.00 1.48 1963 0.10 -0.10 0.00
MONTH TO DATE T 1.61 -1.61 T
SINCE SEP 1 0.74 4.57 -3.83 5.75
SINCE JAN 1 32.83 34.24 -1.41 37.43
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 7 -7 12
MONTH TO DATE 9 88 -79 61
SINCE SEP 1 13 120 -107 64
SINCE JUL 1 13 121 -108 64
COOLING
TODAY 8 1 7 0
MONTH TO DATE 109 37 72 46
SINCE SEP 1 378 249 129 314
SINCE JAN 1 1899 1699 200 2022
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SE (140)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION SE (140)
AVERAGE WIND SPEED 9.9
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 75 500 AM
LOWEST 42 400 PM
AVERAGE 59
......................................................
THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 87 1953
MINIMUM TEMPERATURE (F) 48 27 1976
SUNRISE AND SUNSET
OCTOBER 17 2025.......SUNRISE 713 AM CDT SUNSET 620 PM CDT
OCTOBER 18 2025.......SUNRISE 714 AM CDT SUNSET 618 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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