928  
CDGM40 PGUM 070626  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
426 PM CHST THU AUG 07 2025  
   
...............................  
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR AUGUST 7 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 MM 92 1984 87 0 88  
1990  
1991  
MINIMUM 77 MM 73 1951 77 0 76  
2019  
AVERAGE 82 82 0 82  
 
PRECIPITATION (IN)  
TODAY 0.76 4.73 2012 0.55 0.21 0.25  
MONTH TO DATE 3.51 3.73 -0.22 6.13  
SINCE JUN 1 30.00 22.49 7.51 21.64  
SINCE JAN 1 45.73 42.70 3.03 38.51  
 
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 17 17 0 17  
MONTH TO DATE 119 119 0 119  
SINCE JUN 1 1153 1213 -60 1196  
SINCE JAN 1 3717 3725 -8 3677    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 1 RESULTANT WIND DIRECTION E (70)  
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED MM HIGHEST GUST DIRECTION MM  
AVERAGE WIND SPEED 2.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
THUNDERSTORM  
HEAVY RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 5:00 AM  
LOWEST 75 9:00 AM  
AVERAGE 86  
   
......................................................  
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 93 1991  
MINIMUM TEMPERATURE (F) 77 71 1967  
 
SUNRISE AND SUNSET  
AUGUST 7 2025........SUNRISE 6:07 AM CHST SUNSET 6:46 PM CHST  
AUGUST 8 2025........SUNRISE 6:07 AM CHST SUNSET 6:46 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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