737  
CDGM40 PGUM 010628  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
428 PM CHST TUE JUL 01 2025  
   
...............................  
 
   
..THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR JULY 1 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 88 1:24 PM 93 1969 89 -1 88  
2018  
MINIMUM 76 6:00 AM 73 1967 78 -2 78  
AVERAGE 82 83 -1 83  
 
PRECIPITATION (IN)  
TODAY 0.03 1.36 1948 0.30 -0.27 0.71  
MONTH TO DATE 0.03 0.30 -0.27 0.71  
SINCE JUN 1 13.53 6.81 6.72 8.71  
SINCE JAN 1 29.26 27.02 2.24 25.58  
 
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 18 -1 17  
MONTH TO DATE 17 18 -1 17  
SINCE JUN 1 526 570 -44 548  
SINCE JAN 1 3090 3082 8 3029    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION W (260)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (280)  
AVERAGE WIND SPEED 6.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 12:00 AM  
LOWEST 68 1:00 PM  
AVERAGE 82  
   
......................................................  
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 94 1969  
MINIMUM TEMPERATURE (F) 78 71 1994  
 
SUNRISE AND SUNSET  
JULY 1 2025..........SUNRISE 5:57 AM CHST SUNSET 6:52 PM CHST  
JULY 2 2025..........SUNRISE 5:58 AM CHST SUNSET 6:52 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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