660
CDUS43 KLSX 180735
CLISTL
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
235 AM CDT FRI SEP 18 2026
...............................
..THE ST. LOUIS CLIMATE SUMMARY FOR SEPTEMBER 17 2026
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)
YESTERDAY
MAXIMUM 99R 308 PM 97 1931 81 18 91
MINIMUM 79 618 AM 37 1937 60 19 65
AVERAGE 89 71 18 78
PRECIPITATION (IN)
YESTERDAY 0.00 2.25 1968 0.09 -0.09 0.00
MONTH TO DATE 0.25 1.76 -1.51 0.17
SINCE SEP 1 0.25 1.76 -1.51 0.17
SINCE JAN 1 36.51 31.43 5.08 32.26
SNOWFALL (IN)
YESTERDAY 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
YESTERDAY 0 1 -1 0
MONTH TO DATE 0 5 -5 4
SINCE SEP 1 0 5 -5 4
SINCE JUL 1 0 6 -6 4
COOLING
YESTERDAY 24 7 17 13
MONTH TO DATE 316 149 167 154
SINCE SEP 1 316 149 167 154
SINCE JAN 1 1884 1599 285 1675
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WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 6.4
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82 1200 AM
LOWEST 39 300 PM
AVERAGE 61
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THE ST. LOUIS CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 97 1925
MINIMUM TEMPERATURE (F) 60 42 1973
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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