015  
CDGM40 PGUM 151605  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
205 AM CHST WED JUL 16 2025  
   
...............................  
 
   
..THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR JULY 15 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 88 1:57 PM 93 1993 88 0 87  
MINIMUM 80 9:27 PM 72 1967 77 3 80  
1995  
AVERAGE 84 82 2 84  
 
PRECIPITATION (IN)  
YESTERDAY T 3.17 2010 0.38 -0.38 0.10  
MONTH TO DATE 5.68 5.03 0.65 2.96  
SINCE JUN 1 19.18 11.54 7.64 10.96  
SINCE JAN 1 34.91 31.75 3.16 27.83  
 
DEGREE DAYS  
HEATING  
YESTERDAY 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  
YESTERDAY 19 18 1 19  
MONTH TO DATE 260 270 -10 267  
SINCE JUN 1 769 822 -53 798  
SINCE JAN 1 3333 3334 -1 3279    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 7 RESULTANT WIND DIRECTION E (110)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NE (50)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 8.0  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 85 1:00 AM  
LOWEST 70 12:00 PM  
AVERAGE 78  
   
......................................................  
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 93 1969  
1984  
MINIMUM TEMPERATURE (F) 77 72 1958  
1967  
1992  
 
SUNRISE AND SUNSET  
JULY 16 2025..........SUNRISE 6:02 AM CHST SUNSET 6:52 PM CHST  
JULY 17 2025..........SUNRISE 6:02 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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