098
CDUS43 KLSX 200842
CLISTL
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
242 AM CST SAT DEC 20 2025
...............................
..THE ST. LOUIS CLIMATE SUMMARY FOR DECEMBER 19 2025
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)
YESTERDAY
MAXIMUM 39 348 PM 68 1877 44 -5 51
1889
1976
MINIMUM 23 742 AM -7 1884 28 -5 28
1983
AVERAGE 31 36 -5 40
PRECIPITATION (IN)
YESTERDAY 0.00 1.49 1895 0.08 -0.08 0.00
MONTH TO DATE 0.74 1.48 -0.74 1.71
SINCE DEC 1 0.74 1.48 -0.74 1.71
SINCE JAN 1 38.76 40.68 -1.92 49.64
SNOWFALL (IN)
YESTERDAY 0.0 12.0 1973 0.1 -0.1 0.0
MONTH TO DATE 3.8 1.6 2.2 0.4
SINCE DEC 1 3.8 1.6 2.2 0.4
SINCE JUL 1 10.2 2.5 7.7 3.6
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 34 29 5 25
MONTH TO DATE 634 513 121 505
SINCE DEC 1 634 513 121 505
SINCE JUL 1 1296 1335 -39 1039
COOLING
YESTERDAY 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 25 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 13.6
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT SNOW
RELATIVE HUMIDITY (PERCENT)
HIGHEST 65 600 AM
LOWEST 28 300 PM
AVERAGE 47
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THE ST. LOUIS CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 43 71 2013
MINIMUM TEMPERATURE (F) 28 -10 1901
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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