640
CDGM40 PGUM 301641
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
241 AM CHST THU OCT 01 2026
...............................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 30 2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1945 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 86 1:16 PM 93 1981 87 -1 87
MINIMUM 78 8:58 AM 72 1949 76 2 75
2019
AVERAGE 82 82 0 81
PRECIPITATION (IN)
YESTERDAY 0.69 3.31 1962 0.47 0.22 0.21
MONTH TO DATE 16.68 15.17 1.51 12.34
SINCE SEP 1 16.68 15.17 1.51 12.34
SINCE JAN 1 108.71 71.80 36.91 67.62
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 16
MONTH TO DATE 511 502 9 489
SINCE SEP 1 511 502 9 489
SINCE JAN 1 4505 4630 -125 4618
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION W (290)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION N (360)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 7.4
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 5:00 AM
LOWEST 77 11:00 AM
AVERAGE 87
......................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 91 1984
1987
1991
MINIMUM TEMPERATURE (F) 76 72 1945
SUNRISE AND SUNSET
OCTOBER 1 2026.......SUNRISE 6:10 AM CHST SUNSET 6:11 PM CHST
OCTOBER 2 2026.......SUNRISE 6:10 AM CHST SUNSET 6:10 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