074  
CDGM40 PGUM 160656  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
456 PM CHST TUE DEC 16 2025  
   
...............................  
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR DECEMBER 16 2025...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
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)  
TODAY 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  
TODAY 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  
TODAY 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    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION NE (60)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 11.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88 4:00 AM  
LOWEST 50 1:00 PM  
AVERAGE 69  
   
......................................................  
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 89 2014  
MINIMUM TEMPERATURE (F) 77 66 1965  
 
SUNRISE AND SUNSET  
DECEMBER 16 2025......SUNRISE 6:36 AM CHST SUNSET 5:56 PM CHST  
DECEMBER 17 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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