227
CDGM40 PGUM 241631
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
231 AM CHST THU SEP 25 2025
...............................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 24 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 1:13 PM 90 1995 87 1 87
MINIMUM 75 2:18 AM 70 1970 76 -1 76
AVERAGE 82 82 0 82
PRECIPITATION (IN)
YESTERDAY 0.66 3.78 1984 0.49 0.17 T
MONTH TO DATE 10.82 12.28 -1.46 24.14
SINCE SEP 1 10.82 12.28 -1.46 24.14
SINCE JAN 1 66.10 68.91 -2.81 71.36
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 17
MONTH TO DATE 393 408 -15 406
SINCE SEP 1 393 408 -15 406
SINCE JAN 1 4522 4536 -14 4504
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION E (90)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 6.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 12:00 AM
LOWEST 66 2:00 PM
AVERAGE 81
......................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 91 1995
2013
2017
MINIMUM TEMPERATURE (F) 76 62 1984
SUNRISE AND SUNSET
SEPTEMBER 25 2025.....SUNRISE 6:10 AM CHST SUNSET 6:15 PM CHST
SEPTEMBER 26 2025.....SUNRISE 6:10 AM CHST SUNSET 6:14 PM CHST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page