533
CDUS43 KLSX 182227
CLISTL
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
527 PM CDT FRI SEP 18 2026
...............................
..THE ST. LOUIS CLIMATE SUMMARY FOR SEPTEMBER 18 2026
VALID AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1874 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 98R 345 PM 97 1925 80 18 94
MINIMUM 75 557 AM 42 1973 60 15 64
AVERAGE 87 70 17 79
PRECIPITATION (IN)
TODAY 0.00 1.04 2001 0.10 -0.10 0.00
MONTH TO DATE 0.25 1.86 -1.61 0.17
SINCE SEP 1 0.25 1.86 -1.61 0.17
SINCE JAN 1 36.51 31.53 4.98 32.26
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 0 6 -6 4
SINCE SEP 1 0 6 -6 4
SINCE JUL 1 0 7 -7 4
COOLING
TODAY 22 6 16 14
MONTH TO DATE 338 155 183 168
SINCE SEP 1 338 155 183 168
SINCE JAN 1 1906 1605 301 1689
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 3.0
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 85 600 AM
LOWEST 39 400 PM
AVERAGE 62
......................................................
THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 96 1925
1931
1955
MINIMUM TEMPERATURE (F) 60 42 1938
SUNRISE AND SUNSET
SEPTEMBER 18 2026.....SUNRISE 646 AM CDT SUNSET 705 PM CDT
SEPTEMBER 19 2026.....SUNRISE 647 AM CDT SUNSET 703 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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