016
CDUS43 KLSX 170726
CLISTL
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
226 AM CDT SUN AUG 17 2025
...............................
..THE ST. LOUIS CLIMATE SUMMARY FOR AUGUST 16 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 98 244 PM 103 1936 89 9 95
MINIMUM 78 602 AM 56 1964 70 8 75
1992
AVERAGE 88 79 9 85
PRECIPITATION (IN)
YESTERDAY 0.01 2.35 1946 0.10 -0.09 0.00
MONTH TO DATE 0.32 1.84 -1.52 1.06
SINCE JUN 1 9.28 10.26 -0.98 10.57
SINCE JAN 1 30.93 28.13 2.80 31.36
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 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
YESTERDAY 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
YESTERDAY 23 14 9 20
MONTH TO DATE 244 236 8 226
SINCE JUN 1 1197 1063 134 1157
SINCE JAN 1 1368 1258 110 1470
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 5.8
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 79 600 AM
LOWEST 43 300 PM
AVERAGE 61
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THE ST. LOUIS CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 104 1936
MINIMUM TEMPERATURE (F) 70 55 1879
SUNRISE AND SUNSET
AUGUST 17 2025........SUNRISE 618 AM CDT SUNSET 753 PM CDT
AUGUST 18 2025........SUNRISE 618 AM CDT SUNSET 751 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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