071  
CDGM40 PGUM 190631  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
431 PM CHST FRI DEC 19 2025  
   
...............................  
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR DECEMBER 19 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 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)  
TODAY 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  
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 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 NE (60)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 11.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 12:00 AM  
LOWEST 55 1:00 PM  
AVERAGE 73  
   
......................................................  
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 90 2014  
MINIMUM TEMPERATURE (F) 77 66 1963  
 
SUNRISE AND SUNSET  
DECEMBER 19 2025......SUNRISE 6:38 AM CHST SUNSET 5:58 PM CHST  
DECEMBER 20 2025......SUNRISE 6:38 AM CHST SUNSET 5:58 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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