462
CXUS53 KLSX 141400
CF6CPS
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   CAHOKIA/ST. LOUIS
                                          MONTH:     MAY
                                          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  77  63  70   8   0   5 0.05  0.0    0  7.1 16 240   M    M   5 13     25 210
 2  65  56  61  -1   4   0 0.02  0.0    0  5.0 14 350   M    M   5        20 320
 3  56  52  54  -8  11   0 1.54  0.0    0  9.6 17 310   M    M  10 1      24 320
 4  61  48  55  -8  10   0 0.00  0.0    0  8.8 18  80   M    M   9        25  80
 5  60  46  53 -10  12   0 0.01  0.0    0  4.6 12 350   M    M   7 1      16 350
 6  72  43  58  -5   7   0 0.00  0.0    0  2.5 12 140   M    M   1 18     15 140
 7  76  54  65   1   0   0 0.05  0.0    0  4.9 17 140   M    M   5 3      24  80
 8  70  56  63  -1   2   0 0.19  0.0    0  4.9 25  80   M    M   8 13     36  90
 9  71  48  60  -4   5   0 0.00  0.0    0  6.8 16  40   M    M   0        23  20
10  76  44  60  -5   5   0 0.00  0.0    0  3.3 12  20   M    M   0 1      19 120
11  81  52  67   2   0   2 0.00  0.0    0  5.3 15  90   M    M   0        20  80
12  73  58  66   1   0   1 0.37  0.0    0  2.8 14  70   M    M   8 12     18  70
13  80  62  71   5   0   6 0.00  0.0    0  2.7  9 200   M    M   6 12     16 250
================================================================================
SM  918  682        56  14  2.23  0.0     68.3          M       64
================================================================================
AV 70.6 52.5                               5.3 FASTST   M    M   5    MAX(MPH)
                                 MISC ---->    25  80                 36  90
================================================================================
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:     MAY
                                          YEAR:      2025
                                          LATITUDE:   38 34 N
                                          LONGITUDE:  90  9 W

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

AVERAGE MONTHLY: 61.5   TOTAL FOR MONTH:   2.23    1 = FOG OR MIST
DPTR FM NORMAL:  -2.2   DPTR FM NORMAL:    0.10    2 = FOG REDUCING VISIBILITY
HIGHEST:    81 ON 11    GRTST 24HR  1.54 ON  3- 3      TO 1/4 MILE OR LESS
LOWEST:     43 ON  6                               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:   0    0.01 INCH OR MORE:   7
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   3
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   1
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   1

[HDD (BASE 65) ]
TOTAL THIS MO.    56    CLEAR  (SCALE 0-3)   4
DPTR FM NORMAL     5    PTCLDY (SCALE 4-7)   7
TOTAL FM JUL 1  4054    CLOUDY (SCALE 8-10)  2
DPTR FM NORMAL  -457

[CDD (BASE 65) ]
TOTAL THIS MO.    14
DPTR FM NORMAL   -21    [PRESSURE DATA]
TOTAL FM JAN 1    57    HIGHEST SLP M ON M
DPTR FM NORMAL    -9    LOWEST  SLP 29.68 ON 13

[REMARKS]