WFO Monthly/Daily Climate Data
Issued by NWS

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366
CXUS53 KLSX 241500
CF6CPS
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   CAHOKIA/ST. LOUIS
                                          MONTH:     DECEMBER
                                          YEAR:      2025
                                          LATITUDE:   38 34 N
                                          LONGITUDE:  90  9 W

  TEMPERATURE IN F:       :PCPN:    SNOW:  WIND      :SUNSHINE: SKY     :PK WND
================================================================================
1   2   3   4   5  6A  6B    7    8   9   10  11  12  13   14  15   16   17  18
                                     12Z  AVG MX 2MIN
DY MAX MIN AVG DEP HDD CDD  WTR  SNW DPTH SPD SPD DIR MIN PSBL S-S WX    SPD DR
================================================================================

 1  26  23  25 -15  40   0 0.13    M    M  2.7 14 300   M    M  10 1      19 310
 2  26  21  24 -16  41   0    T    M    M  7.9 20 320   M    M   9 1      25 320
 3  37  18  28 -12  37   0 0.00  0.0    M  5.6 20 360   M    M   5 1      26 360
 4  33  13  23 -16  42   0 0.00  0.0    M  8.8 21 350   M    M   2 18     26 350
 5  43  10  27 -12  38   0 0.00  0.0    M  3.5 12 190   M    M   0        18 210
 6  50  27  39   0  26   0 0.00  0.0    M  5.3 15 160   M    M   1 1      22 160
 7  45  27  36  -2  29   0 0.00  0.0    M 10.3 21 340   M    M  10 18     25 340
 8  36  24  30  -8  35   0 0.00  0.0    0  6.7 14 350   M    M   5        18  20
 9  55  31  43   5  22   0 0.00  0.0    0  9.6 17 210   M    M   2        30 210
10  52  25  39   1  26   0    T    M    0 15.0 35 310   M    M   7        48 320
11  37  28  33  -5  32   0    T    M    0  6.0 15 100   M    M  10        18 110
12  38  32  35  -2  30   0 0.00    M    M  6.9 13 330   M    M  10 18     16  80
13  34  10  22 -15  43   0    T    M    M 11.7 20 350   M    M   9 18     27 350
14  18   7  13 -24  52   0 0.00  0.0    0  8.8 20 330   M    M   0        26 350
15  44  10  27  -9  38   0 0.00  0.0    0  7.4 16 200   M    M   1 8      23 170
16  56  21  39   3  26   0 0.00  0.0    0  6.6 17 170   M    M   0        28 170
17  57  29  43   7  22   0    T  0.0    0  5.2 17 160   M    M   2        25 190
18  58  27  43   7  22   0 0.34    M    0 13.7 30 300   M    M   9 1      44 300
19  40  24  32  -4  33   0 0.00  0.0    0  9.3 24 300   M    M   2        34 310
20  58  30  44   9  21   0 0.00  0.0    0  8.8 21 310   M    M   0        26 320
21  47  21  34  -1  31   0 0.00  0.0    0  2.9  9 130   M    M   0        13 150
22  55  24  40   5  25   0 0.00  0.0    0  6.4 17 160   M    M   4        24 150
23  70  34  52  17  13   0 0.00  0.0    0  3.2 10  30   M    M   3 12     16 210
================================================================================
SM 1015  516       724   0  0.47  0.0    172.3          M      101
================================================================================
AV 44.1 22.4                               7.5 FASTST   M    M   4    MAX(MPH)
                                 MISC ---->    35 310                 48 320
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2

                                          STATION:   CAHOKIA/ST. LOUIS
                                          MONTH:     DECEMBER
                                          YEAR:      2025
                                          LATITUDE:   38 34 N
                                          LONGITUDE:  90  9 W

[TEMPERATURE DATA]      [PRECIPITATION DATA]       SYMBOLS USED IN COLUMN 16

AVERAGE MONTHLY: 33.3   TOTAL FOR MONTH:   0.47    1 = FOG OR MIST
DPTR FM NORMAL:  -4.0   DPTR FM NORMAL:   -1.28    2 = FOG REDUCING VISIBILITY
HIGHEST:    70 ON 23    GRTST 24HR  0.34 ON 18-18      TO 1/4 MILE OR LESS
LOWEST:      7 ON 14                               3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:   0.0 INCH    5 = HAIL
                        GRTST 24HR  0.0            6 = FREEZING RAIN OR DRIZZLE
                        GRTST DEPTH:  0            7 = DUSTSTORM OR SANDSTORM:
                                                       VSBY 1/2 MILE OR LESS
                                                   8 = SMOKE OR HAZE
[NO. OF DAYS WITH]      [WEATHER - DAYS WITH]      9 = BLOWING SNOW
                                                   X = TORNADO
MAX 32 OR BELOW:   3    0.01 INCH OR MORE:   2
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   2
MIN 32 OR BELOW:  22    0.50 INCH OR MORE:   0
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.   724    CLEAR  (SCALE 0-3)  12
DPTR FM NORMAL    88    PTCLDY (SCALE 4-7)   4
TOTAL FM JUL 1  1447    CLOUDY (SCALE 8-10)  7
DPTR FM NORMAL   -80

[CDD (BASE 65) ]
TOTAL THIS MO.     0
DPTR FM NORMAL     0    [PRESSURE DATA]
TOTAL FM JAN 1  1553    HIGHEST SLP M ON M
DPTR FM NORMAL    78    LOWEST  SLP 29.57 ON 10

[REMARKS]