246  
CDGM40 PGUM 201604  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
204 AM CHST MON OCT 21 2024  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR OCTOBER 20 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 85 11:32 AM 91 1970 88 -3 87  
1988  
2014  
MINIMUM 74 7:24 PM 73 1965 77 -3 76  
2002  
AVERAGE 80 82 -2 82  
 
PRECIPITATION (IN)  
YESTERDAY 4.05R 3.05 1967 0.40 3.65 0.01  
MONTH TO DATE 14.23 8.77 5.46 15.80  
SINCE SEP 1 38.61 23.94 14.67 28.26  
SINCE JAN 1 85.83 80.57 5.26 126.48  
 
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 15 17 -2 17  
MONTH TO DATE 328 340 -12 329  
SINCE SEP 1 842 842 0 838  
SINCE JAN 1 4940 4970 -30 4825    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION S (180)  
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 6.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.7  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 2:00 PM  
LOWEST 85 1:00 AM  
AVERAGE 93  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 92 1984  
MINIMUM TEMPERATURE (F) 77 70 1945  
 
SUNRISE AND SUNSET  
OCTOBER 21 2024.......SUNRISE 6:12 AM CHST SUNSET 5:58 PM CHST  
OCTOBER 22 2024.......SUNRISE 6:13 AM CHST SUNSET 5:58 PM CHST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab GU Page Main Text Page