Climatological Report (Daily)
Issued by NWS Tiyan, Guam
Issued by NWS Tiyan, Guam
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CDGM40 PGUM 061604
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
204 AM CHST TUE OCT 07 2025
...................................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR OCTOBER 6 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 9:39 AM 91 2016 87 0 87
MINIMUM 75 5:30 AM 68 1968 77 -2 75
AVERAGE 81 82 -1 81
PRECIPITATION (IN)
YESTERDAY 0.10 4.03 1995 0.45 -0.35 0.11
MONTH TO DATE 0.77 2.84 -2.07 2.52
SINCE SEP 1 13.11 18.01 -4.90 26.90
SINCE JAN 1 68.39 74.64 -6.25 74.12
DEGREE DAYS
HEATING
YESTERDAY 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
YESTERDAY 16 17 -1 16
MONTH TO DATE 99 102 -3 103
SINCE SEP 1 588 604 -16 617
SINCE JAN 1 4717 4732 -15 4715
...................................................................
WIND (MPH)
RESULTANT WIND SPEED 2 RESULTANT WIND DIRECTION N (360)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM
AVERAGE WIND SPEED 2.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 4:00 AM
LOWEST 70 9:00 AM
AVERAGE 84
..........................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 91 2016
MINIMUM TEMPERATURE (F) 77 69 1977
1989
1992
SUNRISE AND SUNSET
OCTOBER 7 2025.......SUNRISE 6:11 AM CHST SUNSET 6:07 PM CHST
OCTOBER 8 2025.......SUNRISE 6:11 AM CHST SUNSET 6:06 PM CHST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$