CDGM40 PGUM 191634 CLIGUM CLIMATE REPORT NATIONAL WEATHER SERVICE TIYAN GUAM 234 AM CHST WED AUG 20 2025 ................................... ...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR AUGUST 19 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 87 10:48 AM 91 1969 87 0 89 1988 MINIMUM 74 5:43 PM 71 1964 77 -3 79 AVERAGE 81 82 -1 84 PRECIPITATION (IN) YESTERDAY 1.24 3.85 1985 0.57 0.67 T MONTH TO DATE 8.61 10.88 -2.27 8.31 SINCE JUN 1 35.10 29.64 5.46 23.82 SINCE JAN 1 50.83 49.85 0.98 40.69 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 16 17 -1 19 MONTH TO DATE 332 323 9 328 SINCE JUN 1 1366 1417 -51 1405 SINCE JAN 1 3930 3929 1 3886 ................................................................... WIND (MPH) RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION SE (120) HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SE (140) HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION SE (140) AVERAGE WIND SPEED 8.8 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.3 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. HEAVY RAIN RAIN LIGHT RAIN RELATIVE HUMIDITY (PERCENT) HIGHEST 90 2:00 AM LOWEST 75 10:00 AM AVERAGE 83 .......................................................... THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 87 92 1981 MINIMUM TEMPERATURE (F) 77 71 1960 SUNRISE AND SUNSET AUGUST 20 2025........SUNRISE 6:09 AM CHST SUNSET 6:40 PM CHST AUGUST 21 2025........SUNRISE 6:09 AM CHST SUNSET 6:39 PM CHST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$