607
CDGM40 PGUM 081618
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
218 AM CHST THU OCT 09 2025
...............................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR OCTOBER 8 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 88 12:01 PM 90 1998 87 1 86
2015
2016
MINIMUM 76 12:00 AM 69 1963 77 -1 74
1968
AVERAGE 82 82 0 80
PRECIPITATION (IN)
YESTERDAY 0.00 2.44 1951 0.45 -0.45 1.55
MONTH TO DATE 2.26 3.74 -1.48 4.15
SINCE SEP 1 14.60 18.91 -4.31 28.53
SINCE JAN 1 69.88 75.54 -5.66 75.75
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 17 17 0 15
MONTH TO DATE 128 136 -8 136
SINCE SEP 1 617 638 -21 650
SINCE JAN 1 4746 4766 -20 4748
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SE (150)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM
AVERAGE WIND SPEED 4.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94 12:00 AM
LOWEST 68 12:00 PM
AVERAGE 81
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THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 90 2018
2023
MINIMUM TEMPERATURE (F) 77 68 1968
1982
SUNRISE AND SUNSET
OCTOBER 9 2025.......SUNRISE 6:11 AM CHST SUNSET 6:05 PM CHST
OCTOBER 10 2025.......SUNRISE 6:11 AM CHST SUNSET 6:05 PM CHST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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