672
CDGM40 PGUM 281614
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
214 AM CHST MON SEP 29 2025
...............................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 28 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 85 11:08 AM 90 2016 87 -2 88
2018
2020
MINIMUM 75 1:08 PM 66 1976 76 -1 77
AVERAGE 80 82 -2 83
PRECIPITATION (IN)
YESTERDAY 0.65 2.67 2016 0.48 0.17 0.00
MONTH TO DATE 12.00 14.22 -2.22 24.35
SINCE SEP 1 12.00 14.22 -2.22 24.35
SINCE JAN 1 67.28 70.85 -3.57 71.57
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 15 17 -2 18
MONTH TO DATE 458 476 -18 477
SINCE SEP 1 458 476 -18 477
SINCE JAN 1 4587 4604 -17 4575
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION E (80)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION E (110)
AVERAGE WIND SPEED 6.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 6:00 PM
LOWEST 77 12:00 PM
AVERAGE 87
......................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 90 1951
1992
2009
MINIMUM TEMPERATURE (F) 76 68 1967
1968
1976
SUNRISE AND SUNSET
SEPTEMBER 29 2025.....SUNRISE 6:10 AM CHST SUNSET 6:12 PM CHST
SEPTEMBER 30 2025.....SUNRISE 6:10 AM CHST SUNSET 6:11 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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