806
CDUS43 KLSX 122228
CLISTL
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
528 PM CDT TUE AUG 12 2025
...............................
..THE ST. LOUIS CLIMATE SUMMARY FOR AUGUST 12 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 1220 PM 106 1881 89 3 78
MINIMUM 75 359 PM 51 1967 70 5 67
AVERAGE 84 80 4 73
PRECIPITATION (IN)
TODAY 0.14 2.68 2019 0.12 0.02 0.27
MONTH TO DATE 0.17 1.42 -1.25 0.54
SINCE JUN 1 9.13 9.84 -0.71 10.05
SINCE JAN 1 30.78 27.71 3.07 30.84
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 JUN 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 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 0 4 -4 0
SINCE JUL 1 0 0 0 0
COOLING
TODAY 19 15 4 8
MONTH TO DATE 169 180 -11 166
SINCE JUN 1 1122 1007 115 1097
SINCE JAN 1 1293 1202 91 1410
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 8.9
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
HEAVY RAIN
LIGHT RAIN
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 88 400 PM
LOWEST 50 1200 PM
AVERAGE 69
......................................................
THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 103 1936
MINIMUM TEMPERATURE (F) 70 50 1964
SUNRISE AND SUNSET
AUGUST 12 2025........SUNRISE 613 AM CDT SUNSET 759 PM CDT
AUGUST 13 2025........SUNRISE 614 AM CDT SUNSET 758 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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