Climatological Report (Daily)
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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662
CDGM40 PGUM 241613
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
213 AM CHST MON AUG 25 2025
...................................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR AUGUST 24 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 9:05 AM 92 1984 87 0 89
MINIMUM 76 3:30 PM 72 1992 76 0 77
1993
1997
AVERAGE 82 82 0 83
PRECIPITATION (IN)
YESTERDAY 0.72 4.40 1967 0.56 0.16 0.00
MONTH TO DATE 11.31 13.66 -2.35 10.70
SINCE JUN 1 37.80 32.42 5.38 26.21
SINCE JAN 1 53.53 52.63 0.90 43.08
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 17 17 0 18
MONTH TO DATE 410 408 2 417
SINCE JUN 1 1444 1502 -58 1494
SINCE JAN 1 4008 4014 -6 3975
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION E (70)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION E (70)
AVERAGE WIND SPEED 4.9
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 94 9:00 PM
LOWEST 75 9:00 AM
AVERAGE 85
..........................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 92 1969
1983
MINIMUM TEMPERATURE (F) 76 72 1954
1986
SUNRISE AND SUNSET
AUGUST 25 2025........SUNRISE 6:09 AM CHST SUNSET 6:37 PM CHST
AUGUST 26 2025........SUNRISE 6:09 AM CHST SUNSET 6:36 PM CHST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$