332
CDUS43 KLSX 202131
CLISTL
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
431 PM CDT MON OCT 20 2025
...............................
..THE ST. LOUIS CLIMATE SUMMARY FOR OCTOBER 20 2025
VALID TODAY AS OF 0400 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 74 259 PM 88 1947 68 6 77
2003
MINIMUM 46 641 AM 26 1930 48 -2 46
AVERAGE 60 58 2 62
PRECIPITATION (IN)
TODAY 0.00 2.08 1983 0.11 -0.11 0.00
MONTH TO DATE 2.06 1.94 0.12 T
SINCE SEP 1 2.80 4.90 -2.10 5.75
SINCE JAN 1 34.89 34.57 0.32 37.43
SNOWFALL (IN)
TODAY 0.0 0.1 1916 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 5 8 -3 3
MONTH TO DATE 21 112 -91 80
SINCE SEP 1 25 144 -119 83
SINCE JUL 1 25 145 -120 83
COOLING
TODAY 0 1 -1 0
MONTH TO DATE 111 40 71 46
SINCE SEP 1 380 252 128 314
SINCE JAN 1 1901 1702 199 2022
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 10.4
SKY COVER
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 66 600 AM
LOWEST 28 200 PM
AVERAGE 47
......................................................
THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 88 1947
1979
MINIMUM TEMPERATURE (F) 47 28 1952
SUNRISE AND SUNSET
OCTOBER 20 2025.......SUNRISE 716 AM CDT SUNSET 616 PM CDT
OCTOBER 21 2025.......SUNRISE 717 AM CDT SUNSET 614 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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