830  
CDGM40 PGUM 170741  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
541 PM CHST FRI JUL 17 2026  
   
...............................  
 
   
..THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR JULY 17 2026  
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1945 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 88 1:34 PM 91 2013 88 0 88  
2019  
MINIMUM 77 12:17 AM 69 1968 77 0 79  
1971  
1984  
AVERAGE 83 82 1 84  
 
PRECIPITATION (IN)  
TODAY 0.01 1.48 1991 0.42 -0.41 0.10  
MONTH TO DATE 19.54 5.86 13.68 5.78  
SINCE JUN 1 24.87 12.37 12.50 19.28  
SINCE JAN 1 76.60 32.58 44.02 35.01  
 
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 18 17 1 19  
MONTH TO DATE 289 305 -16 298  
SINCE JUN 1 818 857 -39 807  
SINCE JAN 1 3210 3369 -159 3371    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION SW (240)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (250)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION W (250)  
AVERAGE WIND SPEED 8.6  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94 2:00 AM  
LOWEST 68 2:00 PM  
AVERAGE 81  
   
......................................................  
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 92 2013  
MINIMUM TEMPERATURE (F) 77 67 1984  
 
SUNRISE AND SUNSET  
JULY 17 2026..........SUNRISE 6:02 AM CHST SUNSET 6:52 PM CHST  
JULY 18 2026..........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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