097  
CDGM40 PGUM 150602  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
402 PM CHST SUN AUG 15 2021  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR AUGUST 14 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 90 12:53 PM 91 1991 87 3 89  
MINIMUM 77 11:57 PM 72 1951 76 1 76  
1954  
AVERAGE 84 82 2 83  
 
PRECIPITATION (IN)  
YESTERDAY 0.24 2.85 1961 0.61 -0.37 0.13  
MONTH TO DATE 7.67 7.90 -0.23 2.40  
SINCE JUN 1 21.51 26.66 -5.15 14.06  
SINCE JAN 1 39.49 46.87 -7.38 32.80  
 
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 18  
MONTH TO DATE 247 233 14 268  
SINCE JUN 1 1394 1311 83 1454  
SINCE JAN 1 3967 3786 181 4074    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 9 RESULTANT WIND DIRECTION E (110)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 9.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94 6:00 AM  
LOWEST 70 11:00 AM  
AVERAGE 82  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 91 1966  
MINIMUM TEMPERATURE (F) 76 70 1989  
 
SUNRISE AND SUNSET  
AUGUST 15 2021........SUNRISE 6:08 AM CHST SUNSET 6:42 PM CHST  
AUGUST 16 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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