350
CDGM40 PGUM 201603
CLIGUM
CLIMATE REPORT
NATIONAL WEATHER SERVICE TIYAN GUAM
203 AM CHST SUN DEC 21 2025
...............................
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR DECEMBER 20 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 84 12:52 PM 90 2014 87 -3 87
MINIMUM 75 9:26 PM 66 1963 77 -2 75
AVERAGE 80 82 -2 81
PRECIPITATION (IN)
YESTERDAY 0.83 1.63 1990 0.14 0.69 0.40
MONTH TO DATE 3.62 3.53 0.09 3.68
SINCE DEC 1 3.62 3.53 0.09 3.68
SINCE JAN 1 93.17 96.35 -3.18 99.33
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 15 17 -2 16
MONTH TO DATE 332 340 -8 332
SINCE DEC 1 332 340 -8 332
SINCE JAN 1 5983 6024 -41 5968
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 13 RESULTANT WIND DIRECTION E (70)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 13.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HEAVY RAIN
RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94 6:00 PM
LOWEST 77 1:00 PM
AVERAGE 86
......................................................
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 89 2014
MINIMUM TEMPERATURE (F) 77 61 1967
SUNRISE AND SUNSET
DECEMBER 21 2025......SUNRISE 6:39 AM CHST SUNSET 5:59 PM CHST
DECEMBER 22 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.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page