


Climatological Report (Daily)
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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163 CDGM40 PGUM 131602 CLIGUM CLIMATE REPORT NATIONAL WEATHER SERVICE TIYAN GUAM 202 AM CHST MON JUL 14 2025 ................................... ...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR JULY 13 2025... 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) YESTERDAY MAXIMUM 88 12:44 PM 91 1989 88 0 89 1990 2013 MINIMUM 77 4:51 AM 71 1950 77 0 79 AVERAGE 83 83 0 84 PRECIPITATION (IN) YESTERDAY 0.15 2.82 2011 0.36 -0.21 0.02 MONTH TO DATE 5.62 4.28 1.34 2.70 SINCE JUN 1 19.12 10.79 8.33 10.70 SINCE JAN 1 34.85 31.00 3.85 27.57 DEGREE DAYS HEATING YESTERDAY 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 YESTERDAY 18 18 0 19 MONTH TO DATE 223 234 -11 229 SINCE JUN 1 732 786 -54 760 SINCE JAN 1 3296 3298 -2 3241 ................................................................... WIND (MPH) RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION SE (140) HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SE (150) HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION S (170) AVERAGE WIND SPEED 7.5 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.4 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. HEAVY RAIN LIGHT RAIN RELATIVE HUMIDITY (PERCENT) HIGHEST 94 5:00 AM LOWEST 72 3:00 PM AVERAGE 83 .......................................................... THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 88 93 1964 MINIMUM TEMPERATURE (F) 77 72 1950 SUNRISE AND SUNSET JULY 14 2025..........SUNRISE 6:01 AM CHST SUNSET 6:52 PM CHST JULY 15 2025..........SUNRISE 6:01 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. $$