458
CXUS53 KLSX 011535
CLMSTL

CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
935 AM CST WED JAN 01 2025

...................................

...THE ST. LOUIS CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2024...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1874 TO 2024

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             76   12/03/1970
                       12/15/1948
 LOW             -16   12/22/1989
HIGHEST           67   12/16                          68
LOWEST            17   12/05                          21
                       12/06
AVG. MAXIMUM    48.5               44.5     4.0     52.7
AVG. MINIMUM    32.9               28.5     4.4     37.4
MEAN            40.7               36.5     4.2     45.0
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     2                4.7    -2.7        0
DAYS MIN <= 32    15               20.4    -5.4        7
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       11.74   2015
 MINIMUM        0.03   1955
TOTALS          2.88               2.50    0.38     2.29
DAILY AVG.      0.09               0.08    0.01     0.07
DAYS >= .01       14                9.0     5.0       12
DAYS >= .10        8                5.2     2.8        7
DAYS >= .50        1                1.3    -0.3        0
DAYS >= 1.00       1                0.4     0.6        0
GREATEST
 24 HR. TOTAL   1.35   12/14 TO 12/14

SNOWFALL (INCHES)
RECORDS
 TOTAL          26.3   1973
 24 HR TOTAL    12.0   12/19/1973 TO 12/19/1973
TOTALS           0.4                3.2    -2.8      0.5
SINCE 7/1        3.6                4.1    -0.5       MM
DAYS >= 1.0        0                                   0
GREATEST
 SNOW DEPTH        3R  12/01
 24 HR TOTAL     0.4   12/02 TO 12/02

DEGREE DAYS
HEATING TOTAL    747                884    -137      611
 SINCE 7/1      1281               1705    -424       MM
COOLING TOTAL      0                  0       0        0
 SINCE 1/1      2057               1713     344       MM
..............................................................

WIND (MPH)
HIGHEST WIND SPEED/DIRECTION    30/310    DATE  12/04
                                30/340          12/05
                                30/280          12/11
HIGHEST GUST SPEED/DIRECTION    48/320    DATE  12/04

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
NUMBER OF DAYS FAIR            7
NUMBER OF DAYS PC              8
NUMBER OF DAYS CLOUDY         16


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       5
LIGHT RAIN               15     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                1     SLEET                      0
FOG                      13     FOG W/VIS <= 1/4 MILE      1
HAZE                      1

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$