WFO Monthly/Daily Climate Data
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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CXGM50 PGUM 200030
CF6GUM
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)
STATION: GUAM INTERNATIONAL AIRPORT
MONTH: MAY
YEAR: 2026
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 76 82 -1 0 17 0.08 M M 10.5 16 70 M M 3 30 70
2 87 79 83 0 0 18 0.00 M M 14.3 23 80 M M 2 33 80
3 87 78 83 0 0 18 0.00 M M 13.9 23 70 M M 3 38 70
4 85 77 81 -2 0 16 0.15 M M 15.6 22 90 M M 5 31 M
5 88 75 82 -1 0 17 0.92 M M 16.1 23 80 M M 5 35 80
6 86 77 82 -1 0 17 0.23 M M 16.7 24 90 M M 7 38 M
7 86 79 83 0 0 18 0.03 M M 15.6 23 90 M M 6 1 35 70
8 86 80 83 0 0 18 0.01 M M 17.7 23 80 M M 5 37 100
9 86 78 82 -1 0 17 0.04 M M 16.4 22 80 M M 6 1 35 90
10 85 76 81 -2 0 16 0.30 M M 14.0 20 70 M M 8 1 36 90
11 85 78 82 -1 0 17 0.11 M M 12.2 20 110 M M 4 1 30 M
12 86 77 82 -1 0 17 0.10 M M 8.4 14 100 M M 4 23 110
13 87 76 82 -1 0 17 0.95 M M 5.7 13 330 M M 5 M M
14 86 76 81 -2 0 16 1.34 M M 7.3 15 150 M M 5 22 120
15 87 78 83 0 0 18 T M M 10.8 16 110 M M 4 23 120
16 87 79 83 0 0 18 0.01 M M 12.8 21 90 M M 5 32 80
17 87 80 84 1 0 19 0.00 M M 14.4 20 80 M M 6 31 80
18 88 80 84 1 0 19 0.02 M M 14.3 20 80 M M 4 31 80
19 87 77 82 -1 0 17 0.29 M M 12.9 21 80 M M 4 36 70
================================================================================
SM 1644 1476 0 330 4.58 M 249.6 M 91
================================================================================
AV 86.5 77.7 13.1 FASTST M M 5 MAX(MPH)
MISC ----> 24 90 # 38 70
================================================================================
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: 2026
LATITUDE: 13 29 N
LONGITUDE: 144-48 E
[TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16
AVERAGE MONTHLY: 82.1 TOTAL FOR MONTH: 4.58 1 = FOG OR MIST
DPTR FM NORMAL: -0.9 DPTR FM NORMAL: 2.06 2 = FOG REDUCING VISIBILITY
HIGHEST: 88 ON 18, 5 GRTST 24HR 1.34 ON 14-14 TO 1/4 MILE OR LESS
LOWEST: 75 ON 5 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: 15
MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 9
MIN 32 OR BELOW: 0 0.50 INCH OR MORE: 3
MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 1
[HDD (BASE 65) ]
TOTAL THIS MO. 0 CLEAR (SCALE 0-3) 1
DPTR FM NORMAL 0 PTCLDY (SCALE 4-7) 18
TOTAL FM JUL 1 0 CLOUDY (SCALE 8-10) 0
DPTR FM NORMAL 0
[CDD (BASE 65) ]
TOTAL THIS MO. 330
DPTR FM NORMAL -12 [PRESSURE DATA]
TOTAL FM JAN 1 2183 HIGHEST SLP 29.91 ON 1
DPTR FM NORMAL -107 LOWEST SLP 29.80 ON 1
[REMARKS]