723  
CDGM40 PGUM 290630  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
430 PM CHST FRI AUG 29 2025  
   
...............................  
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR AUGUST 29 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 89 1:52 PM 91 2014 87 2 86  
MINIMUM 81 8:01 AM 68 1979 76 5 77  
AVERAGE 85 82 3 82  
 
PRECIPITATION (IN)  
TODAY 0.05 5.91 1997 0.58 -0.53 0.57  
MONTH TO DATE 12.36 16.53 -4.17 13.41  
SINCE JUN 1 38.85 35.29 3.56 28.92  
SINCE JAN 1 54.58 55.50 -0.92 45.79  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 20 17 3 17  
MONTH TO DATE 502 493 9 505  
SINCE JUN 1 1536 1587 -51 1582  
SINCE JAN 1 4100 4099 1 4063    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 13 RESULTANT WIND DIRECTION E (90)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION E (70)  
AVERAGE WIND SPEED 13.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88 8:00 AM  
LOWEST 68 1:00 PM  
AVERAGE 78  
   
......................................................  
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 91 2016  
MINIMUM TEMPERATURE (F) 76 65 1983  
 
SUNRISE AND SUNSET  
AUGUST 29 2025........SUNRISE 6:09 AM CHST SUNSET 6:34 PM CHST  
AUGUST 30 2025........SUNRISE 6:09 AM CHST SUNSET 6:33 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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