230
CDUS43 KLSX 152227
CLISTL
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
527 PM CDT MON SEP 15 2025
...............................
..THE ST. LOUIS CLIMATE SUMMARY FOR SEPTEMBER 15 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 92 351 PM 101 1939 81 11 88
MINIMUM 72 532 AM 45 1961 61 11 71
2007
AVERAGE 82 71 11 80
PRECIPITATION (IN)
TODAY 0.00 2.05 1914 0.10 -0.10 0.00
MONTH TO DATE 0.17 1.58 -1.41 0.08
SINCE SEP 1 0.17 1.58 -1.41 0.08
SINCE JAN 1 32.26 31.25 1.01 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 3 1 3
SINCE SEP 1 4 3 1 3
SINCE JUL 1 4 4 0 3
COOLING
TODAY 17 7 10 15
MONTH TO DATE 126 135 -9 121
SINCE SEP 1 126 135 -9 121
SINCE JAN 1 1647 1585 62 1829
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION E (110)
AVERAGE WIND SPEED 5.9
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84 500 AM
LOWEST 37 400 PM
AVERAGE 61
......................................................
THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 98 1927
1954
MINIMUM TEMPERATURE (F) 61 44 1966
SUNRISE AND SUNSET
SEPTEMBER 15 2025.....SUNRISE 643 AM CDT SUNSET 709 PM CDT
SEPTEMBER 16 2025.....SUNRISE 644 AM CDT SUNSET 708 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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