900  
CDGM40 PGUM 011613  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
213 AM CHST THU JAN 02 2025  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR JANUARY 1 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 2:06 PM 90 1971 86 1 86  
1989  
MINIMUM 76 11:42 PM 70 1973 76 0 74  
AVERAGE 82 81 1 80  
 
PRECIPITATION (IN)  
YESTERDAY 0.06 2.98 1976 0.18 -0.12 0.07  
MONTH TO DATE 0.06 0.18 -0.12 0.07  
SINCE DEC 1 4.76 5.48 -0.72 5.56  
SINCE JAN 1 0.06 0.18 -0.12 0.07  
 
SNOWFALL (IN)  
YESTERDAY 0.0  
MONTH TO DATE 0.0  
SINCE DEC 1 0.0  
SINCE JUL 1 0.0  
SNOW DEPTH 0  
 
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 16 1 15  
MONTH TO DATE 17 16 1 15  
SINCE DEC 1 532 537 -5 531  
SINCE JAN 1 17 16 1 15    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 13 RESULTANT WIND DIRECTION E (90)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION E (100)  
AVERAGE WIND SPEED 10.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 90 10:00 AM  
LOWEST 67 4:00 PM  
AVERAGE 79  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 86 90 1971  
1989  
2019  
MINIMUM TEMPERATURE (F) 76 72 1983  
2009  
 
SUNRISE AND SUNSET  
JANUARY 2 2025.......SUNRISE 6:44 AM CHST SUNSET 6:05 PM CHST  
JANUARY 3 2025.......SUNRISE 6:45 AM CHST SUNSET 6:06 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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