757
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
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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.
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