238  
CDGM40 PGUM 181607  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
207 AM CHST THU SEP 19 2024  
   
...............................  
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 18 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 87 1:02 PM 93 2014 87 0 86  
MINIMUM 77 1:22 AM 73 1956 76 1 78  
1960  
1966  
AVERAGE 82 82 0 82  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 2.35 1981 0.49 -0.48 0.34  
MONTH TO DATE 22.13 9.32 12.81 6.73  
SINCE SEP 1 22.13 9.32 12.81 6.73  
SINCE JAN 1 69.35 65.95 3.40 104.95  
 
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 17 17 0 17  
MONTH TO DATE 300 306 -6 312  
SINCE SEP 1 300 306 -6 312  
SINCE JAN 1 4398 4434 -36 4299    
...............................................................  
 
WIND (MPH)  
RESULTANT WIND SPEED 4 RESULTANT WIND DIRECTION NE (60)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 4.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.1  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 97 1:00 AM  
LOWEST 70 3:00 PM  
AVERAGE 84  
   
......................................................  
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 93 1984  
MINIMUM TEMPERATURE (F) 76 71 1986  
 
SUNRISE AND SUNSET  
SEPTEMBER 19 2024.....SUNRISE 6:10 AM CHST SUNSET 6:19 PM CHST  
SEPTEMBER 20 2024.....SUNRISE 6:10 AM CHST SUNSET 6:18 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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