294
CDUS43 KLSX 212129
CLISTL
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
429 PM CDT FRI AUG 21 2026
...............................
..THE ST. LOUIS CLIMATE SUMMARY FOR AUGUST 21 2026
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1874 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 88 203 PM 104 2003 88 0 79
MINIMUM 67 457 AM 50 1940 69 -2 67
1950
AVERAGE 78 78 0 73
PRECIPITATION (IN)
TODAY 0.00 2.07 1944 0.10 -0.10 0.00
MONTH TO DATE 3.62 2.38 1.24 1.48
SINCE JUN 1 17.57 10.80 6.77 10.44
SINCE JAN 1 36.24 28.67 7.57 32.09
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 13 13 0 8
MONTH TO DATE 329 305 24 330
SINCE JUN 1 1162 1132 30 1283
SINCE JAN 1 1434 1327 107 1454
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SE (140)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION SE (140)
AVERAGE WIND SPEED 4.5
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 400 AM
LOWEST 46 100 PM
AVERAGE 70
......................................................
THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 103 1936
MINIMUM TEMPERATURE (F) 69 55 1875
1950
SUNRISE AND SUNSET
AUGUST 21 2026........SUNRISE 621 AM CDT SUNSET 748 PM CDT
AUGUST 22 2026........SUNRISE 622 AM CDT SUNSET 746 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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