Climatological Report (Daily)
Issued by NWS St Louis, MO
Issued by NWS St Louis, MO
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CDUS43 KLSX 180727
CLICOU
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
227 AM CDT MON AUG 18 2025
...................................
...THE COLUMBIA ASOS CLIMATE SUMMARY FOR AUGUST 17 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1890 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 97 1228 PM 106 1936 88 9 87
MINIMUM 74 921 PM 48 1897 67 7 68
AVERAGE 86 77 9 78
PRECIPITATION (IN)
YESTERDAY 0.00 1.91 1970 0.14 -0.14 0.00
MONTH TO DATE 0.07 2.20 -2.13 2.85
SINCE JUN 1 13.29 10.56 2.73 18.59
SINCE JAN 1 26.55 27.42 -0.87 34.53
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 6 -6 0
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 21 12 9 13
MONTH TO DATE 218 226 -8 184
SINCE JUN 1 952 939 13 916
SINCE JAN 1 1043 1085 -42 1104
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION SE (120)
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION SE (130)
AVERAGE WIND SPEED 5.3
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94 1100 PM
LOWEST 43 1200 PM
AVERAGE 69
..........................................................
THE COLUMBIA ASOS CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 106 1936
MINIMUM TEMPERATURE (F) 67 47 1890
SUNRISE AND SUNSET
AUGUST 18 2025........SUNRISE 626 AM CDT SUNSET 759 PM CDT
AUGUST 19 2025........SUNRISE 627 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.
$$