509
CDUS43 KLSX 122228
CLISTL
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
428 PM CST FRI DEC 12 2025
...............................
..THE ST. LOUIS CLIMATE SUMMARY FOR DECEMBER 12 2025
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1874 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 36 356 PM 72 2015 45 -9 36
MINIMUM 32 929 AM -5 1962 29 3 22
AVERAGE 34 37 -3 29
PRECIPITATION (IN)
TODAY 0.00 1.31 1972 0.08 -0.08 0.00
MONTH TO DATE 0.29 0.95 -0.66 0.20
SINCE DEC 1 0.29 0.95 -0.66 0.20
SINCE JAN 1 38.31 40.15 -1.84 48.13
SNOWFALL (IN)
TODAY 0.0 4.4 2010 0.0 0.0 0.0
MONTH TO DATE 3.8 0.9 2.9 0.4
SINCE DEC 1 3.8 0.9 2.9 0.4
SINCE JUL 1 10.2 1.8 8.4 3.6
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 31 28 3 36
MONTH TO DATE 401 313 88 347
SINCE DEC 1 401 313 88 347
SINCE JUL 1 1063 1135 -72 881
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1904 1713 191 2057
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION E (100)
AVERAGE WIND SPEED 8.1
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 88 300 AM
LOWEST 78 200 AM
AVERAGE 83
......................................................
THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 45 73 1948
MINIMUM TEMPERATURE (F) 29 1 1903
SUNRISE AND SUNSET
DECEMBER 12 2025......SUNRISE 711 AM CST SUNSET 440 PM CST
DECEMBER 13 2025......SUNRISE 711 AM CST SUNSET 440 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