746  
CDGM40 PGUM 170635  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
435 PM CHST SAT APR 17 2021  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR APRIL 17 2021...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1945 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 89 2:29 PM 91 1984 87 2 90  
1985  
2014  
MINIMUM 79 5:31 AM 72 1951 77 2 77  
1995  
AVERAGE 84 82 2 84  
 
PRECIPITATION (IN)  
TODAY 0.02 6.36 1997 0.12 -0.10 0.11  
MONTH TO DATE 1.31 1.75 -0.44 0.96  
SINCE MAR 1 4.01 4.52 -0.51 2.29  
SINCE JAN 1 9.13 14.01 -4.88 9.07  
 
SNOWFALL (IN)  
TODAY 0.0  
MONTH TO DATE 0.0  
SINCE MAR 1 0.0  
SINCE JUL 1 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE MAR 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 19 17 2 19  
MONTH TO DATE 308 286 22 300  
SINCE MAR 1 826 773 53 841  
SINCE JAN 1 1790 1663 127 1779    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION E (100)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SE (120)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SE (120)  
AVERAGE WIND SPEED 8.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HEAVY RAIN  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 88 4:00 AM  
LOWEST 61 2:00 PM  
AVERAGE 75  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 96 1971  
MINIMUM TEMPERATURE (F) 77 74 1992  
1994  
1997  
 
SUNRISE AND SUNSET  
APRIL 17 2021.........SUNRISE 6:07 AM CHST SUNSET 6:34 PM CHST  
APRIL 18 2021.........SUNRISE 6:06 AM CHST SUNSET 6:34 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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