896  
CDGM40 PGUM 120718  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
518 PM CHST TUE MAY 12 2026  
   
...............................  
 
   
..THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR MAY 12 2026  
 
VALID TODAY AS OF 0500 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 86 2:27 PM 91 2014 89 -3 89  
MINIMUM 77 1:55 AM 67 1970 78 -1 79  
1972  
1987  
AVERAGE 82 83 -1 84  
 
PRECIPITATION (IN)  
TODAY 0.10 2.63 1964 0.13 -0.03 0.00  
MONTH TO DATE 1.97 1.57 0.40 0.32  
SINCE MAR 1 31.04 7.84 23.20 5.81  
SINCE JAN 1 44.81 17.33 27.48 14.07  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 17 18 -1 19  
MONTH TO DATE 206 216 -10 221  
SINCE MAR 1 1147 1245 -98 1249  
SINCE JAN 1 2059 2164 -105 2209    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION SE (120)  
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION E (110)  
AVERAGE WIND SPEED 9.4  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
RAIN  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94 4:00 AM  
LOWEST 77 12:00 PM  
AVERAGE 86  
   
......................................................  
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 92 2014  
MINIMUM TEMPERATURE (F) 78 66 1987  
 
SUNRISE AND SUNSET  
MAY 12 2026...........SUNRISE 5:56 AM CHST SUNSET 6:39 PM CHST  
MAY 13 2026...........SUNRISE 5:55 AM CHST SUNSET 6:39 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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