WFO Monthly/Daily Climate Data
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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CXGM50 PGUM 170030
CF6GUM
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)
STATION: GUAM INTERNATIONAL AIRPORT
MONTH: OCTOBER
YEAR: 2025
LATITUDE: 13 29 N
LONGITUDE: 144-48 E
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 88 78 83 1 0 18 0.01 M M 6.3 12 90 M M 2 16 120
2 88 77 83 1 0 18 0.07 M M 6.3 14 280 M M 2 M M
3 87 77 82 0 0 17 0.12 M M 5.3 10 280 M M 2 18 180
4 85 75 80 -2 0 15 T M M 3.5 13 160 M M 1 20 160
5 85 75 80 -2 0 15 0.47 M M 2.8 10 150 M M 4 M M
6 87 75 81 -1 0 16 0.10 M M 2.7 9 30 M M 3 M M
7 81 72 77 -5 0 12 1.49 M M 6.0 14 180 M M 5 13 25 50
8 88 76 82 0 0 17 0.00 M M 4.9 10 180 M M 2 M M
9 88 77 83 1 0 18 0.23 M M 8.2 16 30 M M 3 1 25 70
10 81 76 79 -3 0 14 0.16 M M 3.0 13 150 M M 3 3 M M
11 88 75 82 0 0 17 T M M 5.8 10 100 M M 1 M M
12 89 78 84 2 0 19 T M M 8.9 14 70 M M 2 20 70
13 87 77 82 0 0 17 0.33 M M 9.5 14 90 M M 3 32 90
14 86 75 81 -1 0 16 0.45 M M 9.4 16 80 M M 3 32 80
15 83 73 78 -4 0 13 7.40 M M 7.6 22 110 M M 6 3 32 80
16 84 75 80 -2 0 15 0.71 M M 7.2 14 100 M M 4 33 50
================================================================================
SM 1375 1211 0 257 11.54 M 97.4 M 46
================================================================================
AV 85.9 75.7 6.1 FASTST M M 3 MAX(MPH)
MISC ----> 22 110 33 50
================================================================================
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: OCTOBER
YEAR: 2025
LATITUDE: 13 29 N
LONGITUDE: 144-48 E
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 80.8 TOTAL FOR MONTH: 11.54 1 = FOG OR MIST
DPTR FM NORMAL: -1.2 DPTR FM NORMAL: 4.38 2 = FOG REDUCING VISIBILITY
HIGHEST: 89 ON 12 GRTST 24HR 7.40 ON 15-15 TO 1/4 MILE OR LESS
LOWEST: 72 ON 7 3 = THUNDER
SNOW, ICE PELLETS, HAIL 4 = ICE PELLETS
TOTAL MONTH: M 5 = HAIL
GRTST 24HR M ON M 6 = FREEZING RAIN OR DRIZZLE
GRTST DEPTH: M ON M 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: 12
MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 10
MIN 32 OR BELOW: 0 0.50 INCH OR MORE: 3
MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 2
[HDD (BASE 65) ]
TOTAL THIS MO. 0 CLEAR (SCALE 0-3) 10
DPTR FM NORMAL 0 PTCLDY (SCALE 4-7) 6
TOTAL FM JUL 1 0 CLOUDY (SCALE 8-10) 0
DPTR FM NORMAL 0
[CDD (BASE 65) ]
TOTAL THIS MO. 257
DPTR FM NORMAL -15 [PRESSURE DATA]
TOTAL FM JAN 1 4875 HIGHEST SLP 29.88 ON 1
DPTR FM NORMAL -27 LOWEST SLP 29.77 ON 1
[REMARKS]