


Climatological Report (Daily)
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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005 CDGM40 PGUM 160642 CLIGUM CLIMATE REPORT NATIONAL WEATHER SERVICE TIYAN GUAM 442 PM CHST WED JUL 16 2025 ................................... ...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR JULY 16 2025... VALID TODAY AS OF 0400 PM LOCAL TIME. CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1945 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) TODAY MAXIMUM 87 2:33 PM 93 1969 88 -1 89 1984 MINIMUM 78 6:04 AM 72 1958 77 1 78 1967 1992 AVERAGE 83 82 1 84 PRECIPITATION (IN) TODAY 0.00 2.82 1958 0.41 -0.41 0.49 MONTH TO DATE 5.68 5.44 0.24 3.45 SINCE JUN 1 19.18 11.95 7.23 11.45 SINCE JAN 1 34.91 32.16 2.75 28.32 DEGREE DAYS HEATING TODAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE JUN 1 0 0 0 0 SINCE JUL 1 0 0 0 0 COOLING TODAY 18 18 0 19 MONTH TO DATE 278 288 -10 286 SINCE JUN 1 787 840 -53 817 SINCE JAN 1 3351 3352 -1 3298 ................................................................... WIND (MPH) RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION SE (120) HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION S (160) HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM AVERAGE WIND SPEED 5.7 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.2 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 90 6:00 AM LOWEST 68 1:00 PM AVERAGE 79 .......................................................... THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 88 94 1984 MINIMUM TEMPERATURE (F) 77 71 1993 SUNRISE AND SUNSET JULY 16 2025..........SUNRISE 6:02 AM CHST SUNSET 6:52 PM CHST JULY 17 2025..........SUNRISE 6:02 AM CHST SUNSET 6:52 PM CHST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$