103
CDUS43 KLSX 192228
CLISTL
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
528 PM CDT FRI SEP 19 2025
...............................
..THE ST. LOUIS CLIMATE SUMMARY FOR SEPTEMBER 19 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 86 359 PM 96 1925 80 6 92
1931
1955
MINIMUM 67 618 AM 42 1938 60 7 65
AVERAGE 77 70 7 79
PRECIPITATION (IN)
TODAY T 1.82 1954 0.09 -0.09 0.00
MONTH TO DATE 0.17 1.95 -1.78 0.08
SINCE SEP 1 0.17 1.95 -1.78 0.08
SINCE JAN 1 32.26 31.62 0.64 31.76
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 1 -1 0
MONTH TO DATE 4 7 -3 3
SINCE SEP 1 4 7 -3 3
SINCE JUL 1 4 8 -4 3
COOLING
TODAY 12 6 6 14
MONTH TO DATE 180 161 19 172
SINCE SEP 1 180 161 19 172
SINCE JAN 1 1701 1611 90 1880
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 5.2
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 400 AM
LOWEST 42 400 PM
AVERAGE 66
......................................................
THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 97 2017
2022
MINIMUM TEMPERATURE (F) 59 40 1875
SUNRISE AND SUNSET
SEPTEMBER 19 2025.....SUNRISE 647 AM CDT SUNSET 703 PM CDT
SEPTEMBER 20 2025.....SUNRISE 648 AM CDT SUNSET 701 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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