429  
CDGM40 PGUM 170130  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
1130 AM CHST TUE SEP 17 2024  
   
...............................  
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 16 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 81 10:48 AM 91 1983 87 -6 89  
1984  
2016  
MINIMUM 76 4:06 PM 71 1996 76 0 79  
AVERAGE 79 82 -3 84  
 
PRECIPITATION (IN)  
YESTERDAY 5.62R 5.62 2024 0.50 5.12 0.11  
MONTH TO DATE 21.02 8.33 12.69 6.26  
SINCE SEP 1 21.02 8.33 12.69 6.26  
SINCE JAN 1 68.24 64.96 3.28 104.48  
 
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 14 17 -3 19  
MONTH TO DATE 267 272 -5 278  
SINCE SEP 1 267 272 -5 278  
SINCE JAN 1 4365 4400 -35 4265    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION S (160)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION SE (150)  
HIGHEST GUST SPEED 44 HIGHEST GUST DIRECTION SE (140)  
AVERAGE WIND SPEED 13.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1:00 AM  
LOWEST 80 11:00 PM  
AVERAGE 90  
   
......................................................  
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 91 1969  
1984  
2018  
MINIMUM TEMPERATURE (F) 76 70 1972  
 
SUNRISE AND SUNSET  
SEPTEMBER 17 2024.....SUNRISE 6:10 AM CHST SUNSET 6:21 PM CHST  
SEPTEMBER 18 2024.....SUNRISE 6:10 AM CHST SUNSET 6:20 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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