015  
CDGM40 PGUM 201606  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
206 AM CHST TUE JAN 21 2025  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR JANUARY 20 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 86 2:02 PM 91 1982 86 0 84  
MINIMUM 78 6:10 AM 71 1973 75 3 75  
1987  
2000  
AVERAGE 82 80 2 80  
 
PRECIPITATION (IN)  
YESTERDAY T 1.66 1975 0.18 -0.18 T  
MONTH TO DATE 4.86 3.56 1.30 1.05  
SINCE DEC 1 9.56 8.86 0.70 6.54  
SINCE JAN 1 4.86 3.56 1.30 1.05  
 
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 17 16 1 15  
MONTH TO DATE 326 320 6 321  
SINCE DEC 1 841 841 0 837  
SINCE JAN 1 326 320 6 321    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION E (80)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 11.1  
 
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 9:00 PM  
LOWEST 63 10:00 AM  
AVERAGE 74  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 86 89 1982  
1989  
2018  
MINIMUM TEMPERATURE (F) 75 68 1973  
 
SUNRISE AND SUNSET  
JANUARY 21 2025.......SUNRISE 6:48 AM CHST SUNSET 6:16 PM CHST  
JANUARY 22 2025.......SUNRISE 6:48 AM CHST SUNSET 6:16 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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