896  
CDGM40 PGUM 131606  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
206 AM CHST SAT AUG 14 2021  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR AUGUST 13 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 88 4:50 PM 92 1970 87 1 85  
2018  
MINIMUM 79 11:57 PM 70 1967 76 3 76  
AVERAGE 84 82 2 81  
 
PRECIPITATION (IN)  
YESTERDAY 0.01 2.69 2009 0.60 -0.59 0.29  
MONTH TO DATE 7.43 7.29 0.14 2.27  
SINCE JUN 1 21.27 26.05 -4.78 13.93  
SINCE JAN 1 39.25 46.26 -7.01 32.67  
 
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 19 16 3 16  
MONTH TO DATE 228 217 11 250  
SINCE JUN 1 1375 1295 80 1436  
SINCE JAN 1 3948 3770 178 4056    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION E (100)  
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION SE (140)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION SE (140)  
AVERAGE WIND SPEED 10.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94 8:00 PM  
LOWEST 70 12:00 PM  
AVERAGE 82  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 91 1991  
MINIMUM TEMPERATURE (F) 76 72 1951  
1954  
 
SUNRISE AND SUNSET  
AUGUST 14 2021........SUNRISE 6:08 AM CHST SUNSET 6:43 PM CHST  
AUGUST 15 2021........SUNRISE 6:08 AM CHST SUNSET 6:42 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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