628
CDGM40 PGUM 161608
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
208 AM CHST THU SEP 17 2026
...............................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 16 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 87 12:06 PM 91 1983 87 0 86
1984
2016
MINIMUM 75 1:14 AM 71 1996 76 -1 72
AVERAGE 81 82 -1 79
PRECIPITATION (IN)
YESTERDAY 0.91 5.62 2024 0.50 0.41 1.11
MONTH TO DATE 9.74 8.33 1.41 7.99
SINCE SEP 1 9.74 8.33 1.41 7.99
SINCE JAN 1 101.77 64.96 36.81 63.27
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 14
MONTH TO DATE 270 272 -2 264
SINCE SEP 1 270 272 -2 264
SINCE JAN 1 4264 4400 -136 4393
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION NW (300)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 11.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 4:00 AM
LOWEST 83 12:00 PM
AVERAGE 90
......................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 91 1969
1984
2018
MINIMUM TEMPERATURE (F) 76 70 1972
SUNRISE AND SUNSET
SEPTEMBER 17 2026.....SUNRISE 6:10 AM CHST SUNSET 6:21 PM CHST
SEPTEMBER 18 2026.....SUNRISE 6:10 AM CHST SUNSET 6:20 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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