157  
CDGM40 PGUM 191608  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
208 AM CHST TUE APR 20 2021  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR APRIL 19 2021...  
 
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)  
YESTERDAY  
MAXIMUM 89 2:31 PM 91 1984 88 1 89  
1985  
MINIMUM 76 9:36 AM 71 1994 77 -1 77  
AVERAGE 83 82 1 83  
 
PRECIPITATION (IN)  
YESTERDAY 0.11 2.09 1962 0.13 -0.02 0.09  
MONTH TO DATE 1.42 2.01 -0.59 1.22  
SINCE MAR 1 4.12 4.78 -0.66 2.55  
SINCE JAN 1 9.24 14.27 -5.03 9.33  
 
SNOWFALL (IN)  
YESTERDAY 0.0  
MONTH TO DATE 0.0  
SINCE MAR 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 MAR 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 18 17 1 18  
MONTH TO DATE 345 320 25 337  
SINCE MAR 1 863 807 56 878  
SINCE JAN 1 1827 1697 130 1816    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION E (80)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION E (100)  
AVERAGE WIND SPEED 7.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 91 5:00 AM  
LOWEST 54 1:00 PM  
AVERAGE 73  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 91 1984  
1985  
1987  
MINIMUM TEMPERATURE (F) 77 72 1972  
 
SUNRISE AND SUNSET  
APRIL 20 2021.........SUNRISE 6:05 AM CHST SUNSET 6:35 PM CHST  
APRIL 21 2021.........SUNRISE 6:05 AM CHST SUNSET 6:35 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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