


WFO Monthly/Daily Climate Data
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
378 CXGM50 PGUM 070030 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 ================================================================================ 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 0.00 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 ================================================================================ SM 527 469 0 110 0.18 0.0 69.2 M 20 ================================================================================ AV 87.8 78.2 11.5 FASTST M M 3 MAX(MPH) MISC ----> 22 80 # 31 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: 2025 LATITUDE: 13 29 N LONGITUDE: 144-48 E [TEMPERATURE DATA] [PRECIPITATION DATA] SYMBOLS USED IN COLUMN 16 AVERAGE MONTHLY: 83.0 TOTAL FOR MONTH: 0.18 1 = FOG OR MIST DPTR FM NORMAL: 0.0 DPTR FM NORMAL: -0.59 2 = FOG REDUCING VISIBILITY HIGHEST: 89 ON 6 GRTST 24HR 0.11 ON 3- 3 TO 1/4 MILE OR LESS LOWEST: 76 ON 3 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: 3 MAX 90 OR ABOVE: 0 0.10 INCH OR MORE: 1 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) 3 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. 110 DPTR FM NORMAL 2 [PRESSURE DATA] TOTAL FM JAN 1 2098 HIGHEST SLP 29.93 ON 1 DPTR FM NORMAL 42 LOWEST SLP 29.83 ON 1 [REMARKS]