462
CDUS43 KLSX 180834
CLICOU
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
234 AM CST THU DEC 18 2025
...............................
..THE COLUMBIA ASOS CLIMATE SUMMARY FOR DECEMBER 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 55 322 PM 65 1939 43 12 54
1941
1962
MINIMUM 34 750 AM -5 1989 26 8 30
AVERAGE 45 35 10 42
PRECIPITATION (IN)
YESTERDAY 0.00 1.46 1924 0.07 -0.07 0.00
MONTH TO DATE 0.11 1.15 -1.04 2.10
SINCE DEC 1 0.11 1.15 -1.04 2.10
SINCE JAN 1 34.34 40.49 -6.15 46.70
SNOWFALL (IN)
YESTERDAY 0.0 2.0 1924 0.1 -0.1 0.0
1945
MONTH TO DATE 2.6 1.7 0.9 T
SINCE DEC 1 2.6 1.7 0.9 T
SINCE JUL 1 3.6 2.5 1.1 3.2
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 20 30 -10 23
MONTH TO DATE 578 478 100 506
SINCE DEC 1 578 478 100 506
SINCE JUL 1 1327 1385 -58 1179
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1469 1447 22 1500
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 7.6
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 600 AM
LOWEST 52 100 PM
AVERAGE 74
......................................................
THE COLUMBIA ASOS CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 43 71 1939
MINIMUM TEMPERATURE (F) 26 -8 1901
1983
SUNRISE AND SUNSET
DECEMBER 18 2025......SUNRISE 722 AM CST SUNSET 449 PM CST
DECEMBER 19 2025......SUNRISE 723 AM CST SUNSET 450 PM CST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page