785
CDUS43 KLSX 210728
CLISTL
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
228 AM CDT SUN SEP 21 2025
...............................
..THE ST. LOUIS CLIMATE SUMMARY FOR SEPTEMBER 20 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 84 1049 AM 97 2017 80 4 96
2022
MINIMUM 67 552 AM 40 1875 59 8 75
AVERAGE 76 70 6 86
PRECIPITATION (IN)
YESTERDAY 0.06 1.40 1876 0.09 -0.03 0.00
MONTH TO DATE 0.23 2.04 -1.81 0.08
SINCE SEP 1 0.23 2.04 -1.81 0.08
SINCE JAN 1 32.32 31.71 0.61 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 8 -4 3
SINCE SEP 1 4 8 -4 3
SINCE JUL 1 4 9 -5 3
COOLING
YESTERDAY 11 6 5 21
MONTH TO DATE 191 167 24 193
SINCE SEP 1 191 167 24 193
SINCE JAN 1 1712 1617 95 1901
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WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 6.3
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84 600 AM
LOWEST 49 1100 AM
AVERAGE 67
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THE ST. LOUIS CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 97 1881
MINIMUM TEMPERATURE (F) 59 40 1983
SUNRISE AND SUNSET
SEPTEMBER 21 2025.....SUNRISE 649 AM CDT SUNSET 700 PM CDT
SEPTEMBER 22 2025.....SUNRISE 650 AM CDT SUNSET 658 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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