883
CDUS43 KLSX 202226
CLISTL
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
426 PM CST SAT DEC 20 2025
...............................
..THE ST. LOUIS CLIMATE SUMMARY FOR DECEMBER 20 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 55 114 PM 71 2013 43 12 39
MINIMUM 31 1249 AM -10 1901 28 3 30
AVERAGE 43 35 8 35
PRECIPITATION (IN)
TODAY 0.00 1.36 1962 0.08 -0.08 0.00
MONTH TO DATE 0.74 1.56 -0.82 1.71
SINCE DEC 1 0.74 1.56 -0.82 1.71
SINCE JAN 1 38.76 40.76 -2.00 49.64
SNOWFALL (IN)
TODAY 0.0 3.3 1960 0.1 -0.1 0.0
MONTH TO DATE 3.8 1.7 2.1 0.4
SINCE DEC 1 3.8 1.7 2.1 0.4
SINCE JUL 1 10.2 2.6 7.6 3.6
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 22 30 -8 30
MONTH TO DATE 656 543 113 535
SINCE DEC 1 656 543 113 535
SINCE JUL 1 1318 1365 -47 1069
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 18 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 9.4
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 66 100 AM
LOWEST 37 1200 PM
AVERAGE 52
......................................................
THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 43 67 1967
2015
MINIMUM TEMPERATURE (F) 27 -12 1989
SUNRISE AND SUNSET
DECEMBER 20 2025......SUNRISE 716 AM CST SUNSET 443 PM CST
DECEMBER 21 2025......SUNRISE 716 AM CST SUNSET 443 PM CST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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