Climatological Report (Daily)
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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976
CDGM40 PGUM 040638
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
438 PM CHST SAT OCT 04 2025
...................................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR OCTOBER 4 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 85 1:38 PM 92 2016 87 -2 85
MINIMUM 75 5:48 AM 68 1981 77 -2 75
AVERAGE 80 82 -2 80
PRECIPITATION (IN)
TODAY T 6.27 1951 0.48 -0.48 0.95
MONTH TO DATE 0.20 1.93 -1.73 2.33
SINCE SEP 1 12.54 17.10 -4.56 26.71
SINCE JAN 1 67.82 73.73 -5.91 73.93
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
TODAY 15 17 -2 15
MONTH TO DATE 68 68 0 71
SINCE SEP 1 557 570 -13 585
SINCE JAN 1 4686 4698 -12 4683
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION S (160)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION S (160)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION S (160)
AVERAGE WIND SPEED 4.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 12:00 AM
LOWEST 72 3:00 PM
AVERAGE 81
..........................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 91 1995
2003
2016
MINIMUM TEMPERATURE (F) 77 69 1965
1980
SUNRISE AND SUNSET
OCTOBER 4 2025.......SUNRISE 6:10 AM CHST SUNSET 6:09 PM CHST
OCTOBER 5 2025.......SUNRISE 6:10 AM CHST SUNSET 6:08 PM CHST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$