099  
CDGM40 PGUM 091613  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
213 AM CHST MON MAY 10 2021  
   
...............................
 
 
   
..THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR MAY 9 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 4:19 PM 91 1984 89 -2 89  
1987  
2016  
MINIMUM 79 6:00 AM 72 1972 77 2 78  
AVERAGE 83 83 0 84  
 
PRECIPITATION (IN)  
YESTERDAY 0.02 4.42 1950 0.13 -0.11 0.00  
MONTH TO DATE 2.54 1.17 1.37 1.93  
SINCE MAR 1 8.26 7.44 0.82 5.73  
SINCE JAN 1 13.38 16.93 -3.55 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 19  
MONTH TO DATE 165 162 3 170  
SINCE MAR 1 1219 1179 40 1266  
SINCE JAN 1 2183 2079 104 2204    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION E (80)  
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 11.7  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 12:00 AM  
LOWEST 67 10:00 AM  
AVERAGE 77  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 89 92 1984  
1987  
MINIMUM TEMPERATURE (F) 77 71 1972  
 
SUNRISE AND SUNSET  
MAY 10 2021...........SUNRISE 5:56 AM CHST SUNSET 6:38 PM CHST  
MAY 11 2021...........SUNRISE 5:56 AM CHST SUNSET 6:39 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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