433  
CDGM40 PGUM 271607  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
207 AM CHST FRI FEB 28 2025  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR FEBRUARY 27 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 84 2:20 PM 90 1984 86 -2 85  
MINIMUM 74 4:37 AM 70 1950 75 -1 73  
AVERAGE 79 81 -2 79  
 
PRECIPITATION (IN)  
YESTERDAY 1.20 2.58 1986 0.13 1.07 0.00  
MONTH TO DATE 2.01 4.03 -2.02 1.88  
SINCE DEC 1 12.06 14.67 -2.61 9.75  
SINCE JAN 1 7.36 9.37 -2.01 4.26  
 
SNOWFALL (IN)  
YESTERDAY 0.0  
MONTH TO DATE 0.0  
SINCE DEC 1 0.0  
SINCE JUL 1 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 14 16 -2 14  
MONTH TO DATE 440 420 20 403  
SINCE DEC 1 1462 1426 36 1396  
SINCE JAN 1 947 905 42 880    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 16 RESULTANT WIND DIRECTION E (70)  
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 15.9  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 3:00 AM  
LOWEST 79 12:00 AM  
AVERAGE 88  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 86 90 1988  
2015  
MINIMUM TEMPERATURE (F) 75 70 1964  
1973  
 
SUNRISE AND SUNSET  
FEBRUARY 28 2025......SUNRISE 6:38 AM CHST SUNSET 6:29 PM CHST  
MARCH 1 2025.........SUNRISE 6:37 AM CHST SUNSET 6:29 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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