816  
CDGM40 PGUM 301600  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
200 AM CHST TUE OCT 01 2024  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 30 2024...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1945 TO 2024  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 88 1:21 PM 93 1981 87 1 88  
MINIMUM 80 3:03 AM 72 1949 76 4 77  
1975  
2019  
AVERAGE 84 82 2 83  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 3.31 1962 0.47 -0.46 0.63  
MONTH TO DATE 24.38 15.17 9.21 12.46  
SINCE SEP 1 24.38 15.17 9.21 12.46  
SINCE JAN 1 71.60 71.80 -0.20 110.68  
 
SNOWFALL (IN)  
YESTERDAY 0.0  
MONTH TO DATE 0.0  
SINCE SEP 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 SEP 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 19 17 2 18  
MONTH TO DATE 514 502 12 509  
SINCE SEP 1 514 502 12 509  
SINCE JAN 1 4612 4630 -18 4496    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION E (80)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 9.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88 5:00 AM  
LOWEST 66 4:00 PM  
AVERAGE 77  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 91 1984  
1987  
1991  
MINIMUM TEMPERATURE (F) 76 72 1945  
 
SUNRISE AND SUNSET  
OCTOBER 1 2024.......SUNRISE 6:10 AM CHST SUNSET 6:10 PM CHST  
OCTOBER 2 2024.......SUNRISE 6:10 AM CHST SUNSET 6:10 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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