022
CDUS43 KLSX 150736
CLISTL
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
236 AM CDT MON SEP 15 2025
...............................
..THE ST. LOUIS CLIMATE SUMMARY FOR SEPTEMBER 14 2025
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)
YESTERDAY
MAXIMUM 98 141 PM 101 1939 82 16 89
MINIMUM 72 557 AM 46 1949 62 10 67
1974
1996
AVERAGE 85 72 13 78
PRECIPITATION (IN)
YESTERDAY 0.00 4.58 2008 0.11 -0.11 0.00
MONTH TO DATE 0.17 1.48 -1.31 0.08
SINCE SEP 1 0.17 1.48 -1.31 0.08
SINCE JAN 1 32.26 31.15 1.11 31.76
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 4 2 2 3
SINCE SEP 1 4 2 2 3
SINCE JUL 1 4 3 1 3
COOLING
YESTERDAY 20 7 13 13
MONTH TO DATE 109 128 -19 106
SINCE SEP 1 109 128 -19 106
SINCE JAN 1 1630 1578 52 1814
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION SE (120)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION N (360)
AVERAGE WIND SPEED 4.0
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 76 500 AM
LOWEST 31 300 PM
AVERAGE 54
......................................................
THE ST. LOUIS CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 101 1939
MINIMUM TEMPERATURE (F) 61 45 1961
2007
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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