WFO Monthly/Daily Climate Data
Issued by NWS
Issued by NWS
128
CXUS53 KLSX 221400
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
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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
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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
14 85 57 71 5 0 6 0.00 M M 7.0 17 140 M M 5 1 23 130
15 86 69 78 12 0 13 T 0.0 0 8.2 17 200 M M 2 3 29 200
16 86 55 71 4 0 6 0.12 M M 7.4 25 19 M M 1 13 45 200
17 74 56 65 -2 0 0 0.00 M M 9.7 22 300 M M 0 32 300
18 79 57 68 1 0 3 T 0.0 0 3.3 9 160 M M 0 12 150
19 84 63 74 6 0 9 1.00 M M 8.9 20 150 M M 4 13 34 140
20 81 64 73 5 0 8 0.03 0.0 0 10.2 16 210 M M 4 13 32 290
21 73 57 65 -3 0 0 0.00 0.0 0 M 23 290 M M 0 36 300
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SM 1566 1160 56 59 3.38 0.0 123.0 M 80
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AV 74.6 55.2 6.1 FASTST M M 4 MAX(MPH)
MISC ----> # 25 80 45 200
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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: 64.9 TOTAL FOR MONTH: 3.38 1 = FOG OR MIST
DPTR FM NORMAL: -0.1 DPTR FM NORMAL: 0.01 2 = FOG REDUCING VISIBILITY
HIGHEST: 86 ON 16,15 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: 10
MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 5
MIN 32 OR BELOW: 0 0.50 INCH OR MORE: 2
MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 2
[HDD (BASE 65) ]
TOTAL THIS MO. 56 CLEAR (SCALE 0-3) 9
DPTR FM NORMAL -14 PTCLDY (SCALE 4-7) 10
TOTAL FM JUL 1 4054 CLOUDY (SCALE 8-10) 2
DPTR FM NORMAL -476
[CDD (BASE 65) ]
TOTAL THIS MO. 59
DPTR FM NORMAL -12 [PRESSURE DATA]
TOTAL FM JAN 1 102 HIGHEST SLP M ON M
DPTR FM NORMAL 0 LOWEST SLP 29.60 ON 14
[REMARKS]