489
CDUS43 KLSX 120729
CLISTL
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
229 AM CDT FRI SEP 12 2025
...............................
..THE ST. LOUIS CLIMATE SUMMARY FOR SEPTEMBER 11 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 90 324 PM 98 2013 83 7 90
MINIMUM 64 548 AM 42 1940 63 1 60
AVERAGE 77 73 4 75
PRECIPITATION (IN)
YESTERDAY 0.00 1.28 1944 0.11 -0.11 0.00
MONTH TO DATE 0.17 1.16 -0.99 0.00
SINCE SEP 1 0.17 1.16 -0.99 0.00
SINCE JAN 1 32.26 30.83 1.43 31.68
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 0 0 0
MONTH TO DATE 4 0 4 3
SINCE SEP 1 4 0 4 3
SINCE JUL 1 4 1 3 3
COOLING
YESTERDAY 12 8 4 10
MONTH TO DATE 55 105 -50 77
SINCE SEP 1 55 105 -50 77
SINCE JAN 1 1576 1555 21 1785
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION N (360)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 2.2
SKY COVER
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 81 600 AM
LOWEST 36 300 PM
AVERAGE 59
......................................................
THE ST. LOUIS CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 98 1897
1936
1956
MINIMUM TEMPERATURE (F) 62 44 1940
SUNRISE AND SUNSET
SEPTEMBER 12 2025.....SUNRISE 641 AM CDT SUNSET 714 PM CDT
SEPTEMBER 13 2025.....SUNRISE 642 AM CDT SUNSET 712 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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