Climatological Report (Daily)
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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623
CDGM40 PGUM 221626
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
226 AM CHST SAT AUG 23 2025
...................................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR AUGUST 22 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 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)
YESTERDAY 0.86 7.52 2004 0.55 0.31 0.08
MONTH TO DATE 10.39 12.55 -2.16 10.70
SINCE JUN 1 36.88 31.31 5.57 26.21
SINCE JAN 1 52.61 51.52 1.09 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 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 6.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 7:00 AM
LOWEST 82 4:00 PM
AVERAGE 90
..........................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 92 2019
MINIMUM TEMPERATURE (F) 77 73 1995
2005
2022
SUNRISE AND SUNSET
AUGUST 23 2025........SUNRISE 6:09 AM CHST SUNSET 6:38 PM CHST
AUGUST 24 2025........SUNRISE 6:09 AM CHST SUNSET 6:37 PM CHST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$