566
CDGM40 PGUM 191610
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
210 AM CHST SAT DEC 20 2025
...............................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR DECEMBER 19 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 12:57 PM 89 2010 87 0 86
2012
2018
MINIMUM 77 4:18 AM 65 1978 77 0 74
AVERAGE 82 82 0 80
PRECIPITATION (IN)
YESTERDAY 0.01 4.04 1969 0.15 -0.14 0.88
MONTH TO DATE 2.79 3.39 -0.60 3.28
SINCE DEC 1 2.79 3.39 -0.60 3.28
SINCE JAN 1 92.34 96.21 -3.87 98.93
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 17 17 0 15
MONTH TO DATE 317 323 -6 316
SINCE DEC 1 317 323 -6 316
SINCE JAN 1 5968 6007 -39 5952
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION E (70)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 11.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 12:00 AM
LOWEST 55 1:00 PM
AVERAGE 73
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THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 90 2014
MINIMUM TEMPERATURE (F) 77 66 1963
SUNRISE AND SUNSET
DECEMBER 20 2025......SUNRISE 6:38 AM CHST SUNSET 5:58 PM CHST
DECEMBER 21 2025......SUNRISE 6:39 AM CHST SUNSET 5:59 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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