


WFO Monthly/Daily Climate Data
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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734 CXGM50 PGUM 050030 CF6GUM PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) STATION: GUAM INTERNATIONAL AIRPORT MONTH: JUNE 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 79 84 1 0 19 0.04 M M 5.8 12 150 M M 5 M M 2 89 77 83 0 0 18 0.03 M M 8.1 16 60 M M 2 24 60 3 86 79 83 -1 0 18 0.14 M M 7.7 12 90 M M 4 23 90 4 84 74 79 -5 0 14 0.69 0.0 0 5.5 15 90 M M 4 27 0 ================================================================================ SM 347 309 0 69 0.90 0.0 27.1 M 15 ================================================================================ AV 86.8 77.3 6.8 FASTST M M 4 MAX(MPH) MISC ----> 16 60 27 0 ================================================================================ 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: JUNE YEAR: 2025 LATITUDE: 13 29 N LONGITUDE: 144-48 E [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 82.0 TOTAL FOR MONTH: 0.90 1 = FOG OR MIST DPTR FM NORMAL: -1.5 DPTR FM NORMAL: 0.21 2 = FOG REDUCING VISIBILITY HIGHEST: 89 ON 2 GRTST 24HR 0.69 ON 4- 4 TO 1/4 MILE OR LESS LOWEST: 74 ON 4 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: 4 MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 2 MIN 32 OR BELOW: 0 0.50 INCH OR MORE: 1 MIN 0 OR BELOW: 0 1.00 INCH OR MORE: 0 [HDD (BASE 65) ] TOTAL THIS MO. 0 CLEAR (SCALE 0-3) 1 DPTR FM NORMAL 0 PTCLDY (SCALE 4-7) 3 TOTAL FM JUL 1 0 CLOUDY (SCALE 8-10) 0 DPTR FM NORMAL 0 [CDD (BASE 65) ] TOTAL THIS MO. 69 DPTR FM NORMAL -3 [PRESSURE DATA] TOTAL FM JAN 1 2633 HIGHEST SLP 29.94 ON 1 DPTR FM NORMAL 49 LOWEST SLP 29.84 ON 1 [REMARKS]