341
CDGM40 PGUM 161610
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
210 AM CHST WED DEC 17 2025
...............................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR DECEMBER 16 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 87 1:17 PM 90 2016 87 0 86
MINIMUM 75 2:41 AM 67 1963 77 -2 77
AVERAGE 81 82 -1 82
PRECIPITATION (IN)
YESTERDAY 0.01 13.81 1997 0.15 -0.14 0.11
MONTH TO DATE 2.59 2.92 -0.33 2.16
SINCE DEC 1 2.59 2.92 -0.33 2.16
SINCE JAN 1 92.14 95.74 -3.60 97.81
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 16 17 -1 17
MONTH TO DATE 266 272 -6 269
SINCE DEC 1 266 272 -6 269
SINCE JAN 1 5917 5956 -39 5905
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WIND (MPH)
RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION NE (60)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 11.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 88 4:00 AM
LOWEST 50 1:00 PM
AVERAGE 69
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THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 89 2014
MINIMUM TEMPERATURE (F) 77 66 1965
SUNRISE AND SUNSET
DECEMBER 17 2025......SUNRISE 6:37 AM CHST SUNSET 5:57 PM CHST
DECEMBER 18 2025......SUNRISE 6:37 AM CHST SUNSET 5:57 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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