Climatological Report (Daily)
Issued by NWS St Louis, MO
Issued by NWS St Louis, MO
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609
CDUS43 KLSX 212226
CLICOU
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
526 PM CDT SUN SEP 21 2025
...................................
...THE COLUMBIA ASOS CLIMATE SUMMARY FOR SEPTEMBER 21 2025...
VALID AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 85 159 PM 100 1893 78 7 83
MINIMUM 64 601 AM 35 1897 56 8 70
1983
AVERAGE 75 67 8 77
PRECIPITATION (IN)
TODAY 0.38 3.57 1945 0.13 0.25 0.01
MONTH TO DATE 1.40 2.70 -1.30 0.01
SINCE SEP 1 1.40 2.70 -1.30 0.01
SINCE JAN 1 27.99 32.06 -4.07 35.15
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 SEP 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 2 -2 0
MONTH TO DATE 11 17 -6 10
SINCE SEP 1 11 17 -6 10
SINCE JUL 1 12 18 -6 10
COOLING
TODAY 10 4 6 12
MONTH TO DATE 174 142 32 154
SINCE SEP 1 174 142 32 154
SINCE JAN 1 1326 1380 -54 1415
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 5.8
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 600 AM
LOWEST 48 100 PM
AVERAGE 74
..........................................................
THE COLUMBIA ASOS CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 97 1937
MINIMUM TEMPERATURE (F) 56 33 1995
SUNRISE AND SUNSET
SEPTEMBER 21 2025.....SUNRISE 656 AM CDT SUNSET 707 PM CDT
SEPTEMBER 22 2025.....SUNRISE 657 AM CDT SUNSET 705 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$