WFO Monthly/Daily Climate Data
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
758
CXGM50 PGUM 220030
CF6GUM
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)
STATION: GUAM INTERNATIONAL AIRPORT
MONTH: APRIL
YEAR: 2025
LATITUDE: 13 29 N
LONGITUDE: 144-48 E
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 86 77 82 0 0 17 T 0.0 0 13.8 18 110 M M 2 31 90
2 87 78 83 1 0 18 0.00 0.0 0 10.3 16 100 M M 3 31 80
3 86 75 81 -1 0 16 0.00 0.0 0 8.9 15 80 M M 2 21 110
4 87 77 82 0 0 17 0.00 0.0 0 8.1 15 90 M M 2 22 90
5 88 74 81 -1 0 16 0.00 0.0 0 9.6 15 100 M M 1 25 90
6 86 77 82 0 0 17 0.11 0.0 0 10.7 18 90 M M 3 25 90
7 88 77 83 1 0 18 0.00 0.0 0 10.3 17 80 M M 2 25 80
8 88 75 82 0 0 17 T 0.0 0 8.2 16 90 M M 2 25 100
9 87 76 82 0 0 17 0.00 0.0 0 7.6 14 110 M M 1 21 110
10 89 76 83 1 0 18 0.00 0.0 0 9.9 15 70 M M 1 24 90
11 86 76 81 -1 0 16 0.30 0.0 0 9.8 16 100 M M 4 28 110
12 87 76 82 0 0 17 T 0.0 0 8.4 15 110 M M 3 23 110
13 88 76 82 0 0 17 0.01 0.0 0 8.7 15 90 M M 3 23 100
14 87 76 82 0 0 17 0.30 0.0 0 10.6 21 60 M M 3 29 70
15 87 77 82 0 0 17 0.10 0.0 0 12.0 22 90 M M 4 1 34 90
16 88 79 84 1 0 19 0.01 0.0 0 12.2 17 80 M M 3 31 80
17 87 75 81 -2 0 16 0.47 0.0 0 12.9 20 90 M M 5 32 80
18 88 78 83 0 0 18 0.04 0.0 0 13.0 18 60 M M 3 28 90
19 88 78 83 0 0 18 0.00 0.0 0 11.6 16 90 M M 2 27 100
20 88 76 82 -1 0 17 T 0.0 0 9.1 17 80 M M 1 23 80
21 89 76 83 0 0 18 0.00 0.0 0 8.8 15 90 M M 2 23 100
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SM 1835 1605 0 361 1.34 0.0 214.5 M 52
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AV 87.4 76.4 10.2 FASTST M M 2 MAX(MPH)
MISC ----> 22 90 34 90
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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: GUAM INTERNATIONAL AIRPORT
MONTH: APRIL
YEAR: 2025
LATITUDE: 13 29 N
LONGITUDE: 144-48 E
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 81.9 TOTAL FOR MONTH: 1.34 1 = FOG OR MIST
DPTR FM NORMAL: -0.4 DPTR FM NORMAL: -0.99 2 = FOG REDUCING VISIBILITY
HIGHEST: 89 ON 21,10 GRTST 24HR 0.47 ON 17-17 TO 1/4 MILE OR LESS
LOWEST: 74 ON 5 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: 8
MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 5
MIN 32 OR BELOW: 0 0.50 INCH OR MORE: 0
MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0
[HDD (BASE 65) ]
TOTAL THIS MO. 0 CLEAR (SCALE 0-3) 16
DPTR FM NORMAL 0 PTCLDY (SCALE 4-7) 5
TOTAL FM JUL 1 0 CLOUDY (SCALE 8-10) 0
DPTR FM NORMAL 0
[CDD (BASE 65) ]
TOTAL THIS MO. 361
DPTR FM NORMAL -4 [PRESSURE DATA]
TOTAL FM JAN 1 1830 HIGHEST SLP 29.93 ON 1
DPTR FM NORMAL 42 LOWEST SLP 29.83 ON 1
[REMARKS]