268
CDUS43 KLSX 182128
CLISTL
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
428 PM CDT TUE AUG 18 2026
...............................
..THE ST. LOUIS CLIMATE SUMMARY FOR AUGUST 18 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 86 259 PM 106 1936 88 -2 97
MINIMUM 68 546 AM 54 1963 69 -1 78
AVERAGE 77 79 -2 88
PRECIPITATION (IN)
TODAY 0.00 2.10 1902 0.11 -0.11 0.00
MONTH TO DATE 3.47 2.06 1.41 1.44
SINCE JUN 1 17.42 10.48 6.94 10.40
SINCE JAN 1 36.09 28.35 7.74 32.05
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 12 14 -2 23
MONTH TO DATE 290 264 26 288
SINCE JUN 1 1123 1091 32 1241
SINCE JAN 1 1395 1286 109 1412
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 2.4
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 500 AM
LOWEST 53 1100 AM
AVERAGE 75
......................................................
THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 105 1936
1962
MINIMUM TEMPERATURE (F) 69 55 1953
SUNRISE AND SUNSET
AUGUST 18 2026........SUNRISE 618 AM CDT SUNSET 752 PM CDT
AUGUST 19 2026........SUNRISE 619 AM CDT SUNSET 750 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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