WFO Monthly/Daily Climate Data
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
414
CXGM50 PGUM 230030
CF6GUM
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)
STATION: GUAM INTERNATIONAL AIRPORT
MONTH: MAY
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 88 79 84 1 0 19 0.00 0.0 0 12.7 21 80 M M 3 29 80
2 88 79 84 1 0 19 0.00 0.0 0 12.4 17 110 M M 4 31 70
3 87 76 82 -1 0 17 0.11 0.0 M 10.4 22 80 M M 5 1 31 M
4 88 79 84 1 0 19 T 0.0 M 12.1 18 80 M M 2 28 80
5 87 77 82 -1 0 17 0.02 0.0 0 10.9 17 90 M M 3 31 90
6 89 79 84 1 0 19 0.05 0.0 0 10.7 17 90 M M 3 25 100
7 88 78 83 0 0 18 0.07 0.0 0 12.2 18 60 M M 2 33 70
8 89 78 84 1 0 19 0.01 0.0 0 12.8 20 70 M M 2 29 70
9 89 79 84 1 0 19 T 0.0 0 12.2 18 80 M M 3 25 80
10 89 78 84 1 0 19 0.00 0.0 0 11.2 17 80 M M 2 28 90
11 88 75 82 -1 0 17 0.06 0.0 0 11.7 20 90 M M 2 31 80
12 89 79 84 1 0 19 0.00 0.0 0 11.5 17 70 M M 3 28 100
13 89 80 85 2 0 20 T 0.0 0 14.1 21 90 M M 3 31 100
14 89 78 84 1 0 19 0.15 0.0 0 12.9 22 80 M M 2 38 70
15 89 78 84 1 0 19 0.08 0.0 0 11.0 17 90 M M 3 24 90
16 89 79 84 1 0 19 0.03 0.0 0 12.9 18 70 M M 3 27 80
17 88 78 83 0 0 18 0.06 0.0 0 12.2 17 100 M M 3 30 90
18 89 76 83 0 0 18 0.23 0.0 0 12.2 24 70 M M 4 31 70
19 87 78 83 0 0 18 0.10 0.0 0 11.5 21 70 M M 3 30 M
20 88 78 83 0 0 18 0.15 0.0 0 11.3 18 80 M M 3 28 100
21 89 79 84 1 0 19 T 0.0 0 11.8 17 70 M M 2 27 70
22 89 76 83 0 0 18 0.00 M M 7.2 14 100 M M 1 22 90
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SM 1945 1716 0 407 1.12 0.0 257.9 M 61
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AV 88.4 78.0 11.7 FASTST M M 3 MAX(MPH)
MISC ----> 24 70 38 70
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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: MAY
YEAR: 2025
LATITUDE: 13 29 N
LONGITUDE: 144-48 E
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 83.2 TOTAL FOR MONTH: 1.12 1 = FOG OR MIST
DPTR FM NORMAL: 0.2 DPTR FM NORMAL: -1.86 2 = FOG REDUCING VISIBILITY
HIGHEST: 89 ON 22,21 GRTST 24HR 0.23 ON 18-18 TO 1/4 MILE OR LESS
LOWEST: 75 ON 11 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: 13
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) 17
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. 407
DPTR FM NORMAL 11 [PRESSURE DATA]
TOTAL FM JAN 1 2395 HIGHEST SLP 29.93 ON 1
DPTR FM NORMAL 51 LOWEST SLP 29.83 ON 1
[REMARKS]