066  
CDGM40 PGUM 011620  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
220 AM CHST SUN MAY 02 2021  
   
...............................
 
 
   
..THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR MAY 1 2021
 
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
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 89 3:01 PM 91 1987 88 1 90  
1988  
2013  
MINIMUM 79 11:59 PM 72 1950 77 2 75  
AVERAGE 84 82 2 83  
 
PRECIPITATION (IN)  
YESTERDAY 0.04 0.88 2011 0.13 -0.09 0.83  
MONTH TO DATE 0.04 0.13 -0.09 0.83  
SINCE MAR 1 5.76 6.48 -0.72 4.63  
SINCE JAN 1 10.88 15.97 -5.09 11.41  
 
SNOWFALL (IN)  
YESTERDAY 0.0  
MONTH TO DATE 0.0  
SINCE MAR 1 0.0  
SINCE JUL 1 0.0  
SNOW DEPTH 0.0  
 
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 19 17 2 18  
MONTH TO DATE 19 17 2 18  
SINCE MAR 1 1073 1011 62 1114  
SINCE JAN 1 2037 1901 136 2052    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 11 RESULTANT WIND DIRECTION E (80)  
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION E (80)  
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 12.2  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.2  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
FOG  
HAZE  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 85 3:00 AM  
LOWEST 61 12:00 PM  
AVERAGE 73  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 88 92 1985  
2016  
MINIMUM TEMPERATURE (F) 77 72 1998  
 
SUNRISE AND SUNSET  
MAY 2 2021...........SUNRISE 5:59 AM CHST SUNSET 6:37 PM CHST  
MAY 3 2021...........SUNRISE 5:59 AM CHST SUNSET 6:37 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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