130
CDGM40 PGUM 181603
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
203 AM CHST SAT SEP 19 2026
...............................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 18 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 88 4:46 PM 93 2014 87 1 88
MINIMUM 78 10:32 AM 73 1956 76 2 76
1960
1966
AVERAGE 83 82 1 82
PRECIPITATION (IN)
YESTERDAY 0.62 2.35 1981 0.49 0.13 0.24
MONTH TO DATE 10.74 9.32 1.42 9.12
SINCE SEP 1 10.74 9.32 1.42 9.12
SINCE JAN 1 102.77 65.95 36.82 64.40
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 18 17 1 17
MONTH TO DATE 307 306 1 295
SINCE SEP 1 307 306 1 295
SINCE JAN 1 4301 4434 -133 4424
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION SW (240)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 7.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 11:00 PM
LOWEST 75 1:00 PM
AVERAGE 86
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THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 93 1984
MINIMUM TEMPERATURE (F) 76 71 1986
SUNRISE AND SUNSET
SEPTEMBER 19 2026.....SUNRISE 6:10 AM CHST SUNSET 6:19 PM CHST
SEPTEMBER 20 2026.....SUNRISE 6:10 AM CHST SUNSET 6:19 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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