208  
CDGM40 PGUM 271606  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
206 AM CHST SAT AUG 28 2021  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR AUGUST 27 2021...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
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 87 2:42 PM 92 1966 87 0 86  
1971  
MINIMUM 76 11:11 AM 72 1951 76 0 73  
1984  
2004  
AVERAGE 82 82 0 80  
 
PRECIPITATION (IN)  
YESTERDAY 0.54 3.80 2020 0.58 -0.04 3.80  
MONTH TO DATE 14.04 15.38 -1.34 9.58  
SINCE JUN 1 27.88 34.14 -6.26 21.24  
SINCE JAN 1 45.86 54.35 -8.49 39.98  
 
SNOWFALL (IN)  
YESTERDAY 0.0  
MONTH TO DATE 0.0  
SINCE JUN 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 JUN 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 17 16 1 15  
MONTH TO DATE 462 441 21 502  
SINCE JUN 1 1609 1519 90 1688  
SINCE JAN 1 4182 3994 188 4308    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 8 RESULTANT WIND DIRECTION E (80)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NE (60)  
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION NE (60)  
AVERAGE WIND SPEED 8.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94 12:00 AM  
LOWEST 72 10:00 AM  
AVERAGE 83  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 91 1988  
1991  
2019  
MINIMUM TEMPERATURE (F) 76 73 1953  
1968  
 
SUNRISE AND SUNSET  
AUGUST 28 2021........SUNRISE 6:09 AM CHST SUNSET 6:35 PM CHST  
AUGUST 29 2021........SUNRISE 6:09 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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