Climatological Report (Daily)
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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922
CDGM40 PGUM 220626
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
426 PM CHST FRI AUG 22 2025
...................................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR AUGUST 22 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 82 3:23 PM 92 1966 87 -5 86
MINIMUM 74 8:12 AM 70 1986 77 -3 78
AVERAGE 78 82 -4 82
PRECIPITATION (IN)
TODAY 0.85 7.52 2004 0.55 0.30 0.08
MONTH TO DATE 10.38 12.55 -2.17 10.70
SINCE JUN 1 36.87 31.31 5.56 26.21
SINCE JAN 1 52.60 51.52 1.08 43.08
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 13 17 -4 17
MONTH TO DATE 377 374 3 380
SINCE JUN 1 1411 1468 -57 1457
SINCE JAN 1 3975 3980 -5 3938
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION E (80)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 7.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 7:00 AM
LOWEST 85 3:00 PM
AVERAGE 91
..........................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 92 2019
MINIMUM TEMPERATURE (F) 77 73 1995
2005
2022
SUNRISE AND SUNSET
AUGUST 22 2025........SUNRISE 6:09 AM CHST SUNSET 6:38 PM CHST
AUGUST 23 2025........SUNRISE 6:09 AM CHST SUNSET 6:38 PM CHST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$