046  
CDGM40 PGUM 081602  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
202 AM CHST SUN MAY 09 2021  
   
...............................
 
 
   
..THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR MAY 8 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 2:33 PM 92 1984 88 -1 88  
MINIMUM 78 9:09 PM 73 1963 77 1 77  
1964  
1968  
AVERAGE 83 83 0 83  
 
PRECIPITATION (IN)  
YESTERDAY 0.40 1.42 1981 0.14 0.26 0.01  
MONTH TO DATE 2.52 1.04 1.48 1.93  
SINCE MAR 1 8.24 7.31 0.93 5.73  
SINCE JAN 1 13.36 16.80 -3.44 12.51  
 
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 18 0 18  
MONTH TO DATE 147 144 3 151  
SINCE MAR 1 1201 1161 40 1247  
SINCE JAN 1 2165 2061 104 2185    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 12 RESULTANT WIND DIRECTION E (80)  
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 12.1  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
HEAVY RAIN  
RAIN  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 6:00 AM  
LOWEST 70 2:00 PM  
AVERAGE 79  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 91 1984  
1987  
2016  
MINIMUM TEMPERATURE (F) 77 72 1972  
 
SUNRISE AND SUNSET  
MAY 9 2021...........SUNRISE 5:57 AM CHST SUNSET 6:38 PM CHST  
MAY 10 2021...........SUNRISE 5:56 AM CHST SUNSET 6:38 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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